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           [Tracheobionta]
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      Magnoliophyta
             [Angiospermae]
         Eudicots
             Core Eudicots
                    Caryophyllales
                            <b>Cactaceae</b>
                                     <i>Acanthocalycium</i>
                                             <i>Acanthocalycium aurantiacum</i>
                                             <i>Acanthocalycium ferrarii</i>
                                             <i>Acanthocalycium glaucum</i>
                                             <i>Acanthocalycium klimpelianum</i>
                                             <i>Acanthocalycium spiniflorum</i>
                                             <i>Acanthocalycium thionanthum</i>
                                             <i>Acanthocalycium variiflorum</i>
                                     <i>Acanthocereus</i>
                                             <i>Acanthocereus atropurpureus</i>
                                             <i>Acanthocereus castellae</i>
                                             <i>Acanthocereus chiapensis</i>
                                             <i>Acanthocereus columbianus</i>
                                             <i>Acanthocereus cuixmalensis</i>
                                             <i>Acanthocereus horridus</i>
                                             <i>Acanthocereus maculatus</i>
                                             <i>Acanthocereus oaxacensis</i>
                                             <i>Acanthocereus occidentalis</i>
                                             <i>Acanthocereus paradoxus</i>
                                             <i>Acanthocereus pentagonus</i>
                                             <i>Acanthocereus subinermis</i>
                                             <i>Acanthocereus tepalcatepecanus</i>
                                             <i>Acanthocereus tetragonus</i>
                                                   [Acanthocereus baxaniensis]
                                                   [Acanthocereus colombianus]
                                                   [Acanthocereus floridanus]
                                                   [Acanthocereus griseus]
                                                   [Acanthocereus pitajaya]
                                                   [Cactus pentagonus]
                                                   [Cactus tetragonus]
                                                   [Cereus baxaniensis]
                                                   [Cereus pentagonus]
                                                   [Cereus validus]
                                             <i>Acanthocereus undulosus</i>
                                     <i>Acanthorhipsalis</i>
                                     <i>Acharagma</i>
                                             <i>Acharagma aguirreanum</i>
                                                   [Escobaria aguirreana]
                                                   [Gymnocactus aguirreanus]
                                                   [Thelocactus aguirreanus]
                                             <i>Acharagma roseana</i>
                                             <i>Acharagma roseanum</i>
                                                   [Echinocactus roseanus]
                                                   [Gymnocactus roseanus]
                                                   [Thelocactus roseanus]
                                               <i>Acharagma roseanum subsp. galeanense</i>
                                               <i>Acharagma roseanum subsp. roseanum</i>
                                                     [Coryphantha roseana]
                                     <i>Airampoa</i>
                                             <i>Airampoa albisaetacens</i>
                                                   [Opuntia armata]
                                     <i>Ancistrocactus</i>
                                             <i>Ancistrocactus brevihamatus</i>
                                               <i>Ancistrocactus brevihamatus var. brevihamatus</i>
                                               <i>Ancistrocactus brevihamatus var. pallidus</i>
                                             <i>Ancistrocactus pinkavanus</i>
                                             <i>Ancistrocactus scheeri</i>
                                             <i>Ancistrocactus tobuschii</i>
                                     <i>Aporocactus</i>
                                             <i>Aporocactus flagelliformis</i>
                                     <i>Ariocarpus</i>
                                             <i>Ariocarpus agavoides</i>
                                             <i>Ariocarpus bravoanus</i>
                                               <i>Ariocarpus bravoanus subsp. bravoanus</i>
                                               <i>Ariocarpus bravoanus subsp. hintonii</i>
                                             <i>Ariocarpus fissuratus</i>
                                                   [Mammillaria fissurata]
                                               <i>Ariocarpus fissuratus subsp. fissuratus</i>
                                                     [Ariocarpus lloydii]
                                               <i>Ariocarpus fissuratus subsp. lloydii</i>
                                                     [Ariocarpus fissuratus var. lloydii]
                                               <i>Ariocarpus fissuratus var. fissuratus</i>
                                               <i>Ariocarpus fissuratus var. hintonii</i>
                                             <i>Ariocarpus kotschoubeyanus</i>
                                                   [Ariocarpus kotschoubeyanus subsp. macdowellii]
                                             <i>Ariocarpus retusus</i>
                                                   [Ariocarpus elongatus]
                                                   [Ariocarpus retusus var. retusus]
                                                   [Mammillaria furfuracea]
                                               <i>Ariocarpus retusus subsp. retusus</i>
                                               <i>Ariocarpus retusus subsp. trigonus</i>
                                             <i>Ariocarpus scaphirostris</i>
                                                   [Ariocarpus scapharostris]
                                                   [Ariocarpus scapharostrus]
                                             <i>Ariocarpus trigonus</i>
                                     <i>Armatocereus</i>
                                             <i>Armatocereus arduus</i>
                                             <i>Armatocereus cartwrightianus</i>
                                                   [Lemaireocereus cartwrightianus]
                                             <i>Armatocereus godingianus</i>
                                               <i>Armatocereus godingianus subsp. brevispinus</i>
                                                     [Armatocereus brevispinus]
                                               <i>Armatocereus godingianus subsp. godingianus</i>
                                                     [Lemaireocereus godingianus]
                                             <i>Armatocereus laetus</i>
                                                   [Armatocereus oligogonus]
                                                   [Lemaireocereus laetus]
                                             <i>Armatocereus mataranus</i>
                                               <i>Armatocereus mataranus subsp. ancashensis</i>
                                               <i>Armatocereus mataranus subsp. mataranus</i>
                                             <i>Armatocereus matucanensis</i>
                                                   [Armatocereus arboreus]
                                                   [Armatocereus churinensis]
                                                   [Armatocereus mataranus var. ancashensis]
                                             <i>Armatocereus procerus</i>
                                             <i>Armatocereus rauhii</i>
                                                   [Armatocereus rupicola]
                                               <i>Armatocereus rauhii subsp. balsasensis</i>
                                               <i>Armatocereus rauhii subsp. rauhii</i>
                                             <i>Armatocereus riomajensis</i>
                                     <i>Arrojadoa</i>
                                             <i>Arrojadoa bahiensis</i>
                                             <i>Arrojadoa dinae</i>
                                                   [Arrojadoa beateae]
                                                   [Arrojadoa dinae subsp. dinae]
                                                   [Arrojadoa dinae subsp. nana]
                                                   [Arrojadoa dinae var. nana]
                                                   [Arrojadoa multiflora]
                                             <i>Arrojadoa eriocaulis</i>
                                                   [Arrojadoa dinae subsp. eriocaulis]
                                                   [Arrojadoa eriocaulis subsp. albicoronata]
                                                   [Arrojadoa multiflora subsp. hofackeriana]
                                             <i>Arrojadoa marylaniae</i>
                                             <i>Arrojadoa penicillata</i>
                                                   [Cereus penicillatus]
                                             <i>Arrojadoa rhodantha</i>
                                                   [Arrojadoa aureispina var. anguinea]
                                                   [Arrojadoa aureispina var. guanambensis]
                                                   [Arrojadoa aureispina]
                                                   [Arrojadoa canudosensis]
                                                   [Arrojadoa horstiana]
                                                   [Arrojadoa rhodantha subsp. aureispina]
                                                   [Arrojadoa rhodantha subsp. canudosensis]
                                                   [Arrojadoa rhodantha subsp. reflexa]
                                                   [Arrojadoa rhodantha var. theunisseniana]
                                             <i>Arrojadoa x albiflora</i>
                                     <i>Arthrocereus</i>
                                             <i>Arthrocereus glaziovii</i>
                                                   [Arthrocereus campos-portoi]
                                                   [Arthrocereus damazioi]
                                                   [Arthrocereus densiaculeatus]
                                                   [Arthrocereus itabiriticola]
                                                   [Leocereus glaziovii]
                                             <i>Arthrocereus melanurus</i>
                                                   [Leocereus melanurus]
                                               <i>Arthrocereus melanurus subsp. magnus</i>
                                               <i>Arthrocereus melanurus subsp. melanurus</i>
                                               <i>Arthrocereus melanurus subsp. odorus</i>
                                             <i>Arthrocereus odorus</i>
                                             <i>Arthrocereus rondonianus</i>
                                             <i>Arthrocereus spinosissimus</i>
                                     <i>Astrophytum</i>
                                             <i>Astrophytum asterias</i>
                                                   [Echinocactus asterias]
                                             <i>Astrophytum capricorne</i>
                                                   [Astrophytum capricorne var. crassispinum]
                                                   [Astrophytum senile]
                                                   [Echinocactus capricornis]
                                             <i>Astrophytum caput-medusae</i>
                                             <i>Astrophytum myriostigma</i>
                                                   [Astrophytum coahuilense]
                                                   [Astrophytum columnare]
                                                   [Astrophytum myriostigma var. potosinum]
                                                   [Astrophytum myriostigma var. tulense]
                                                   [Astrophytum tulense]
                                               <i>Astrophytum myriostigma var. coahuilense</i>
                                               <i>Astrophytum myriostigma var. myriostigma</i>
                                             <i>Astrophytum ornatum</i>
                                                   [Echinocactus ornatus]
                                     <i>Austrocactus</i>
                                           [Austrocactus coxii]
                                             <i>Austrocactus bertinii</i>
                                                   [Austrocactus dusenii]
                                                   [Austrocactus gracilis]
                                                   [Austrocactus hibernus]
                                                   [Austrocactus patagonicus]
                                             <i>Austrocactus philippii</i>
                                                   [Erdisia philippii]
                                             <i>Austrocactus spiniflorus</i>
                                                   [Corryocactus spiniflorus]
                                                   [Erdisia spiniflora]
                                                   [Opuntia spiniflora]
                                     <i>Austrocylindropuntia</i>
                                             <i>Austrocylindropuntia cylindrica</i>
                                                   [Austrocylindropuntia intermedia]
                                                   [Cactus cylindricus]
                                                   [Cylindropuntia intermedia]
                                                   [Opuntia bradleyi]
                                             <i>Austrocylindropuntia floccosa</i>
                                                   [Austrocylindropuntia hirschii]
                                                   [Austrocylindropuntia lauliacoana]
                                                   [Austrocylindropuntia machacana]
                                                   [Austrocylindropuntia punta-caillan]
                                                   [Austrocylindropuntia tephrocactoides]
                                                   [Austrocylindropuntia yanganucensis]
                                                   [Opuntia blancii]
                                                   [Opuntia crispicrinita]
                                                   [Opuntia cylindrolanata]
                                                   [Opuntia floccosa]
                                                   [Opuntia hirschii]
                                                   [Opuntia pseudoudonis]
                                                   [Opuntia punta-caillan]
                                                   [Opuntia rauhii]
                                                   [Opuntia tephrocactoides]
                                                   [Opuntia udonis]
                                                   [Opuntia verticosa]
                                                   [Opuntia yanganucensis]
                                                   [Tephrocactus atroviridis]
                                                   [Tephrocactus blancii]
                                                   [Tephrocactus crispicrinitus]
                                                   [Tephrocactus cylindrolanatus]
                                                   [Tephrocactus floccosus]
                                                   [Tephrocactus hirschii]
                                                   [Tephrocactus pseudoudonis]
                                                   [Tephrocactus punta-caillan]
                                                   [Tephrocactus rauhii]
                                                   [Tephrocactus udonis]
                                                   [Tephrocactus verticosus]
                                                   [Tephrocactus yanganucensis]
                                             <i>Austrocylindropuntia lagopus</i>
                                                   [Austrocylindropuntia malyana]
                                                   [Opuntia lagopus]
                                                   [Tephrocactus lagopus]
                                                   [Tephrocactus malyanus]
                                             <i>Austrocylindropuntia miquelii</i>
                                                   [Opuntia miquelii]
                                             <i>Austrocylindropuntia pachypus</i>
                                                   [Opuntia pachypus]
                                             <i>Austrocylindropuntia shaferi</i>
                                                   [Austrocylindropuntia humahuacana]
                                                   [Austrocylindropuntia steiniana]
                                                   [Austrocylindropuntia weingartiana]
                                                   [Cylindropuntia humahuacana]
                                                   [Cylindropuntia weingartiana]
                                                   [Opuntia shaferi]
                                             <i>Austrocylindropuntia subulata</i>
                                                   [Pereskia subulata]
                                               <i>Austrocylindropuntia subulata subsp. exaltata</i>
                                                     [Austrocylindropuntia exaltata]
                                                     [Opuntia exaltata]
                                                     [Opuntia subulata var. exaltata]
                                               <i>Austrocylindropuntia subulata subsp. subulata</i>
                                             <i>Austrocylindropuntia verschaffeltii</i>
                                                   [Austrocylindropuntia haematacantha]
                                                   [Austrocylindropuntia inarmata]
                                                   [Cylindropuntia haematacantha]
                                                   [Opuntia posnanskyana]
                                                   [Opuntia steiniana]
                                                   [Opuntia verschaffeltii]
                                             <i>Austrocylindropuntia vestita</i>
                                                   [Austrocylindropuntia chuquisacana]
                                                   [Austrocylindropuntia teres]
                                                   [Cylindropuntia teres]
                                                   [Opuntia chuquisacana]
                                                   [Opuntia heteromorpha]
                                                   [Opuntia vestita]
                                                   [Tephrocactus heteromorphus]
                                     <i>Aylostera</i>
                                     <i>Aztekium</i>
                                             <i>Aztekium hintonii</i>
                                             <i>Aztekium ritteri</i>
                                                   [Echinocactus ritteri]
                                     <i>Backebergia</i>
                                             <i>Backebergia militaris</i>
                                                   [Pachycereus chrysomallus]
                                     <i>Bartschella</i>
                                     <i>Bergerocactus</i>
                                             <i>Bergerocactus emoryi</i>
                                                   [Bergerocereus emoryi]
                                                   [Cereus emoryi]
                                                   [Echinocereus emoryi]
                                     <i>Bergerocereus</i>
                                     <i>Blossfeldia</i>
                                             <i>Blossfeldia liliputana</i>
                                                   [Blossfeldia liliputana var. atroviridis]
                                                   [Blossfeldia liliputana var. campaniflora]
                                                   [Blossfeldia liliputana var. fechseri]
                                                   [Blossfeldia minima]
                                                   [Blossfeldia pedicellata]
                                                   [Parodia liliputana]
                                     <i>Bolivicereus</i>
                                     <i>Bonifazia</i>
                                     <i>Borzicactus</i>
                                             <i>Borzicactus aurantiacus</i>
                                             <i>Borzicactus calvescens</i>
                                             <i>Borzicactus fruticosus</i>
                                     <i>Brachycereus</i>
                                             <i>Brachycereus nesioticus</i>
                                     <i>Brasilicereus</i>
                                             <i>Brasilicereus markgrafii</i>
                                             <i>Brasilicereus phaeacanthus</i>
                                                   [Brasilicereus breviflorus]
                                                   [Brasilicereus phaeacanthus subsp. breviflorus]
                                     <i>Brasiliopuntia</i>
                                             <i>Brasiliopuntia brasiliensis</i>
                                                   [Brasiliopuntia bahiensis]
                                                   [Brasiliopuntia neoargentina]
                                                   [Brasiliopuntia schulzii]
                                                   [Brasiliopuntia subacarpa]
                                                   [Cactus brasiliensis]
                                                   [Opuntia bahiensis]
                                                   [Opuntia brasiliensis subsp. bahiensis]
                                                   [Opuntia brasiliensis subsp. subacarpa]
                                                   [Opuntia neoargentina]
                                                   [Opuntia schulzii]
                                               <i>Brasiliopuntia brasiliensis subsp. brasiliensis</i>
                                                     [Opuntia argentina]
                                             <i>Brasiliopuntia schickendantzii</i>
                                     <i>Browningia</i>
                                             <i>Browningia altissima</i>
                                                   [Gymnanthocereus altissimus]
                                             <i>Browningia amstutziae</i>
                                             <i>Browningia caineana</i>
                                             <i>Browningia candelaris</i>
                                                   [Cereus candelaris]
                                               <i>Browningia candelaris subsp. candelaris</i>
                                               <i>Browningia candelaris subsp. icaensis</i>
                                                     [Browningia icaensis]
                                             <i>Browningia chlorocarpa</i>
                                                   [Cactus chlorocarpus]
                                             <i>Browningia columnaris</i>
                                             <i>Browningia hertlingiana</i>
                                                   [Browningia viridis]
                                             <i>Browningia microsperma</i>
                                                   [Browningia albiceps]
                                                   [Cereus microspermus]
                                             <i>Browningia pilleifera</i>
                                                   [Gymnanthocereus macracanthus]
                                                   [Gymnanthocereus pilleifer]
                                             <i>Browningia riosaniensis</i>
                              Cactoideae
                                     <i>Kadenicarpus</i>
                                             <i>Kadenicarpus horripilus</i>
                                                   [Neolloydia horripila]
                                             <i>Kadenicarpus pseudomacrochele</i>
                                     <i>Leucostele</i>
                                             <i>Leucostele chiloensis</i>
                                               <i>Leucostele chiloensis subsp. chiloensis</i>
                                                     [Cereus quisco]
                                     <i>Lymanbensonia</i>
                                             <i>Lymanbensonia crenata</i>
                                     <i>Marginatocereus</i>
                                             <i>Marginatocereus marginatus</i>
                                                   [Echinopsis gemmata]
                                                   [Lemaireocereus marginatus]
                                     <i>Soehrensia</i>
                                             <i>Soehrensia candicans</i>
                                                   [Echinocereus candicans]
                                                   [Trichocereus lamprochlorus]
                                     <i>Cactus</i>
                                             <i>Cactus goodridgii</i>
                                             <i>Cactus lasiacanthus</i>
                                               <i>Cactus lasiacanthus var. denudatus</i>
                                             <i>Cactus muehlenpfordtii</i>
                                                   [Mammillaria muehlenpfordtii]
                                             <i>Cactus opuntia</i>
                                             <i>Cactus pringlei</i>
                                             <i>Cactus radiosus</i>
                                             <i>Cactus recurvispinus</i>
                                                   [Mammillaria recurvispina]
                                     <i>Calymmanthium</i>
                                             <i>Calymmanthium substerile</i>
                                     <i>Carnegiea</i>
                                             <i>Carnegiea euphorbioides</i>
                                             <i>Carnegiea gigantea</i>
                                                   [Cereus giganteus]
                                     <i>Castellanosia</i>
                                             <i>Castellanosia caineana</i>
                                     <i>Cephalocereus</i>
                                             <i>Cephalocereus apicicephalium</i>
                                                   [Cephalocereus nizandensis]
                                                   [Cephalocereus totolapensis]
                                             <i>Cephalocereus columna-trajani</i>
                                                   [Cephalocereus hoppenstedtii]
                                                   [Pachycereus columna-trajani]
                                             <i>Cephalocereus deeringii</i>
                                             <i>Cephalocereus dybowskii</i>
                                             <i>Cephalocereus keyensis</i>
                                             <i>Cephalocereus mezcalaensis</i>
                                             <i>Cephalocereus nudus</i>
                                             <i>Cephalocereus phaeacanthus</i>
                                             <i>Cephalocereus purpusii</i>
                                             <i>Cephalocereus senilis</i>
                                                   [Pilocereus senilis]
                                             <i>Cephalocereus smithianus</i>
                                             <i>Cephalocereus zehnteri</i>
                                     <i>Cephalophorus</i>
                                             <i>Cephalophorus palmeri</i>
                                     <i>Cereus</i>
                                           [Cereus braunii]
                                           [Cereus pachyrrhizus]
                                             <i>Cereus Engelmannii</i>
                                             <i>Cereus acranthus</i>
                                             <i>Cereus aethiops</i>
                                                   [Cereus azureus]
                                                   [Piptanthocereus aethiops]
                                             <i>Cereus aggregatus</i>
                                             <i>Cereus albicaulis</i>
                                                   [Acanthocereus albicaulis]
                                                   [Monvillea albicaulis]
                                             <i>Cereus alticostatus</i>
                                             <i>Cereus amazonicus</i>
                                             <i>Cereus apoloensis</i>
                                             <i>Cereus argentinensis</i>
                                             <i>Cereus assurgens</i>
                                             <i>Cereus atacamensis</i>
                                             <i>Cereus ballivianii</i>
                                             <i>Cereus berlandieri</i>
                                             <i>Cereus bicolor</i>
                                             <i>Cereus blanckii</i>
                                             <i>Cereus blankii</i>
                                             <i>Cereus caespitosus</i>
                                             <i>Cereus campinensis</i>
                                             <i>Cereus chalybaeus</i>
                                             <i>Cereus childsii</i>
                                             <i>Cereus chiotilla</i>
                                             <i>Cereus chloranthus</i>
                                             <i>Cereus cinerascens</i>
                                             <i>Cereus coccineus</i>
                                             <i>Cereus cochal</i>
                                             <i>Cereus compressus</i>
                                             <i>Cereus coniflorus</i>
                                             <i>Cereus crassisepalus</i>
                                             <i>Cereus crenulatus</i>
                                             <i>Cereus dasyacanthus</i>
                                               <i>Cereus dasyacanthus var. minor</i>
                                               <i>Cereus dasyacanthus var. neomexicanus</i>
                                             <i>Cereus diffusus</i>
                                                   [Monvillea diffusa]
                                             <i>Cereus dubius</i>
                                             <i>Cereus eburneus</i>
                                             <i>Cereus edulis</i>
                                             <i>Cereus eriophorus</i>
                                               <i>Cereus eriophorus var. eriophorus</i>
                                               <i>Cereus eriophorus var. fragrans</i>
                                             <i>Cereus estevesii</i>
                                             <i>Cereus fendleri</i>
                                             <i>Cereus fernambucensis</i>
                                                   [Cereus neotetragonus]
                                                   [Cereus obtusus]
                                               <i>Cereus fernambucensis subsp. fernambucensis</i>
                                                     [Cereus tetragonus]
                                               <i>Cereus fernambucensis subsp. sericifer</i>
                                                     [Cereus sericifer]
                                                     [Piptanthocereus sericifer]
                                             <i>Cereus flagelliformis</i>
                                             <i>Cereus forbesii</i>
                                             <i>Cereus fricii</i>
                                                   [Cephalocereus russelianus]
                                                   [Cereus russelianus]
                                             <i>Cereus geometrizans</i>
                                             <i>Cereus glaziovii</i>
                                             <i>Cereus gracilis</i>
                                               <i>Cereus gracilis var. aboriginus</i>
                                               <i>Cereus gracilis var. simpsonii</i>
                                             <i>Cereus grantianus</i>
                                             <i>Cereus gummosus</i>
                                             <i>Cereus hankeanus</i>
                                                   [Cereus cochabambensis]
                                                   [Cereus comarapanus]
                                                   [Cereus huilunchu]
                                                   [Piptanthocereus comarapanus]
                                                   [Piptanthocereus huilunchu]
                                             <i>Cereus hexagonus</i>
                                                   [Cereus longiflorus]
                                                   [Cereus longifolius]
                                                   [Cereus perlucens]
                                             <i>Cereus hildmannianus</i>
                                                   [Cereus hildmannianus subsp. xanthocarpus]
                                                   [Cereus neonesioticus]
                                                   [Cereus nesioticus]
                                                   [Cereus uruguayanus]
                                                   [Cereus xanthocarpus]
                                                   [Piptanthocereus neonesioticus var. interior]
                                                   [Piptanthocereus neonesioticus]
                                                   [Piptanthocereus peruvianus]
                                                   [Piptanthocereus xanthocarpus]
                                                   [Stenocereus peruvianus]
                                               <i>Cereus hildmannianus subsp. hildmannianus</i>
                                                     [Cereus alacriportanus]
                                                     [Cereus peruvianus var. monstrosus]
                                               <i>Cereus hildmannianus subsp. uruguayanus</i>
                                                     [Piptanthocereus bageanus]
                                                     [Piptanthocereus uruguayanus]
                                             <i>Cereus horrispinus</i>
                                             <i>Cereus huotii</i>
                                             <i>Cereus hystrix</i>
                                             <i>Cereus insularis</i>
                                                   [Cereus ridleii]
                                                   [Monvillea insularis]
                                             <i>Cereus jamacaru</i>
                                               <i>Cereus jamacaru subsp. calcirupicola</i>
                                                     [Cereus calcirupicola subsp. cabralensis]
                                                     [Cereus calcirupicola subsp. cipoensis]
                                                     [Cereus calcirupicola var. cabralensis]
                                                     [Cereus calcirupicola var. cipoensis]
                                                     [Cereus calcirupicola]
                                                     [Piptanthocereus cabralensis]
                                                     [Piptanthocereus calcirupicola]
                                                     [Piptanthocereus cipoensis]
                                               <i>Cereus jamacaru subsp. jamacaru</i>
                                                     [Cereus goiasensis]
                                                     [Cereus jamacaru subsp. goiasensis]
                                                     [Piptanthocereus goiasensis]
                                             <i>Cereus kroenleinii</i>
                                                   [Cereus phatnospermus subsp. kroenleinii]
                                                   [Monvillea kroenleinii]
                                             <i>Cereus lamprospermus</i>
                                               <i>Cereus lamprospermus subsp. colosseus</i>
                                               <i>Cereus lamprospermus subsp. lamprospermus</i>
                                             <i>Cereus lanosus</i>
                                                   [Piptanthocereus lanosus]
                                             <i>Cereus lauterbachii</i>
                                             <i>Cereus litoralis</i>
                                             <i>Cereus maritimus</i>
                                             <i>Cereus markgrafii</i>
                                             <i>Cereus melanurus</i>
                                             <i>Cereus minensis</i>
                                             <i>Cereus mirabella</i>
                                                   [Monvillea minensis]
                                             <i>Cereus mojavensis</i>
                                             <i>Cereus mortensenii</i>
                                                   [Pilocereus mortensenii]
                                                   [Pilosocereus gruberi]
                                                   [Pilosocereus mortensenii]
                                             <i>Cereus munzii</i>
                                             <i>Cereus nashii</i>
                                                   [Harrisia nashii]
                                             <i>Cereus nudiflorus</i>
                                             <i>Cereus orcuttii</i>
                                             <i>Cereus pecten-aboriginum</i>
                                             <i>Cereus pectinatus</i>
                                             <i>Cereus pentalophus</i>
                                             <i>Cereus peruvianus</i>
                                                   [Cactus peruvianus]
                                             <i>Cereus phaeacanthus</i>
                                             <i>Cereus phatnospermus</i>
                                                   [Cereus adelmarii]
                                                   [Monvillea adelmarii]
                                                   [Monvillea phatnosperma]
                                             <i>Cereus phoeniceus</i>
                                               <i>Cereus phoeniceus var. pacificus</i>
                                             <i>Cereus pierre-braunianus</i>
                                             <i>Cereus polyacanthus</i>
                                             <i>Cereus portoricensis</i>
                                             <i>Cereus pringlei</i>
                                             <i>Cereus quadricostatus</i>
                                             <i>Cereus repandus</i>
                                                   [Cactus repandus]
                                                   [Cereus atroviridis]
                                                   [Cereus grenadensis]
                                                   [Cereus margaritensis]
                                             <i>Cereus robinii</i>
                                               <i>Cereus robinii var. deeringii</i>
                                               <i>Cereus robinii var. keyensis</i>
                                             <i>Cereus roetteri</i>
                                             <i>Cereus saddianus</i>
                                                   [Monvillea saddiana]
                                             <i>Cereus smithianus</i>
                                             <i>Cereus speciosissimus</i>
                                             <i>Cereus spegazzinii</i>
                                                   [Cereus anisitsii]
                                                   [Cereus haageanus]
                                                   [Monvillea ebenacantha]
                                                   [Monvillea haageana]
                                                   [Monvillea lindenzweigiana]
                                                   [Monvillea spegazzinii]
                                             <i>Cereus spinulosus</i>
                                             <i>Cereus stellatus</i>
                                             <i>Cereus stenogonus</i>
                                                   [Cereus dayamii]
                                                   [Cereus roseiflorus]
                                                   [Cereus tacuaralensis]
                                                   [Piptanthocereus dayamii]
                                                   [Piptanthocereus stenogonus]
                                             <i>Cereus stramineus</i>
                                             <i>Cereus strictus</i>
                                             <i>Cereus trigonodendron</i>
                                             <i>Cereus trigonus</i>
                                             <i>Cereus undatus</i>
                                             <i>Cereus undulosus</i>
                                             <i>Cereus vargasianus</i>
                                             <i>Cereus variabilis</i>
                                             <i>Cereus viridflorus</i>
                                             <i>Cereus viridiflorus</i>
                                               <i>Cereus viridiflorus var. cylindricus</i>
                                             <i>Cereus yunckeri</i>
                                     <i>Chamaecereus</i>
                                     <i>Chiapasia</i>
                                     <i>Cinnabarinea</i>
                                     <i>Cipocereus</i>
                                             <i>Cipocereus bradei</i>
                                             <i>Cipocereus crassisepalus</i>
                                             <i>Cipocereus laniflorus</i>
                                             <i>Cipocereus minensis</i>
                                               <i>Cipocereus minensis subsp. leiocarpus</i>
                                               <i>Cipocereus minensis subsp. minensis</i>
                                                     [Cipocereus minensis subsp. pleurocarpus]
                                             <i>Cipocereus pleurocarpus</i>
                                             <i>Cipocereus pusilliflorus</i>
                                     <i>Cleistocactus</i>
                                             <i>Cleistocactus acanthurus</i>
                                                   [Borzicactus acanthurus]
                                                   [Cereus acanthurus]
                                                   [Loxanthocereus acanthurus]
                                               <i>Cleistocactus acanthurus subsp. acanthurus</i>
                                                     [Cleistocactus erectispinus]
                                                     [Haageocereus paradoxus]
                                                     [Loxanthocereus bicolor]
                                                     [Loxanthocereus convergens]
                                                     [Loxanthocereus cullmannianus]
                                                     [Loxanthocereus eremiticus]
                                                     [Loxanthocereus erigens]
                                                     [Loxanthocereus eriotrichus]
                                                     [Loxanthocereus eulalianus]
                                                     [Loxanthocereus gracilispinus]
                                                     [Loxanthocereus keller-badensis]
                                                     [Loxanthocereus multifloccosus]
                                                     [Loxanthocereus neglectus var. chimbotensis]
                                                     [Loxanthocereus neglectus]
                                                     [Loxanthocereus pacaranensis]
                                               <i>Cleistocactus acanthurus subsp. faustianus</i>
                                                     [Borzicactus faustianus]
                                                     [Loxanthocereus faustianus]
                                               <i>Cleistocactus acanthurus subsp. pullatus</i>
                                                     [Loxanthocereus pullatus]
                                             <i>Cleistocactus ayopayanus</i>
                                             <i>Cleistocactus baumannii</i>
                                                   [Cereus baumannii]
                                               <i>Cleistocactus baumannii subsp. baumannii</i>
                                                     [Cleistocactus bruneispinus]
                                                     [Cleistocactus flavispinus]
                                               <i>Cleistocactus baumannii subsp. horstii</i>
                                                     [Cleistocactus horstii]
                                               <i>Cleistocactus baumannii subsp. santacruzensis</i>
                                                     [Cleistocactus anguinus]
                                                     [Cleistocactus baumannii subsp. anguinus]
                                                     [Cleistocactus baumannii subsp. chacoanus]
                                                     [Cleistocactus baumannii subsp. croceiflorus]
                                                     [Cleistocactus chacoanus]
                                                     [Cleistocactus croceiflorus]
                                                     [Cleistocactus grossei]
                                                     [Cleistocactus paraguariensis]
                                                     [Cleistocactus santacruzensis]
                                             <i>Cleistocactus brookeae</i>
                                                   [Cleistocactus wendlandiorum]
                                               <i>Cleistocactus brookeae subsp. brookeae</i>
                                               <i>Cleistocactus brookeae subsp. vulpis-cauda</i>
                                             <i>Cleistocactus buchtienii</i>
                                                   [Cleistocactus angosturensis]
                                                   [Cleistocactus orthogonus]
                                                   [Cleistocactus palhuayensis]
                                                   [Cleistocactus ressinianus]
                                                   [Cleistocactus sucrensis]
                                                   [Cleistocactus tupizensis]
                                                   [Cleistocactus viridiflorus]
                                             <i>Cleistocactus candelilla</i>
                                                   [Cleistocactus dependens]
                                                   [Cleistocactus ianthinus]
                                                   [Cleistocactus pojoensis]
                                                   [Cleistocactus vallegrandensis]
                                               <i>Cleistocactus candelilla subsp. candelilla</i>
                                               <i>Cleistocactus candelilla subsp. piraymirensis</i>
                                                     [Cleistocactus muyurinensis]
                                                     [Cleistocactus piraymirensis]
                                             <i>Cleistocactus chrysocephalus</i>
                                             <i>Cleistocactus fieldianus</i>
                                                   [Borzicactus fieldianus]
                                               <i>Cleistocactus fieldianus subsp. fieldianus</i>
                                                     [Borzicactus cajamarcensis]
                                                     [Borzicactus calviflorus]
                                               <i>Cleistocactus fieldianus subsp. tessellatus</i>
                                                     [Borzicactus tessellatus]
                                             <i>Cleistocactus hoffmannii</i>
                                                   [Loxanthocereus hoffmannii]
                                             <i>Cleistocactus hyalacanthus</i>
                                                   [Cereus hyalacanthus]
                                                   [Cleistocactus azerensis]
                                                   [Cleistocactus jujuyensis]
                                               <i>Cleistocactus hyalacanthus subsp. hyalacanthus</i>
                                               <i>Cleistocactus hyalacanthus subsp. tarijensis</i>
                                                     [Cleistocactus compactus]
                                                     [Cleistocactus hildegardiae]
                                             <i>Cleistocactus hystrix</i>
                                                   [Cleistocactus clavispinus]
                                                   [Cleistocactus peculiaris]
                                                   [Loxanthocereus canetensis]
                                                   [Loxanthocereus deserticola]
                                                   [Loxanthocereus ferrugineus]
                                                   [Loxanthocereus hystrix]
                                                   [Loxanthocereus montanus]
                                                   [Loxanthocereus peculiaris]
                                             <i>Cleistocactus icosagonus</i>
                                                   [Borzicactus aurivillus]
                                                   [Borzicactus icosagonus]
                                                   [Cleistocactus humboldtii]
                                                   [Cleistocactus roseiflorus]
                                                   [Cleistocactus x crassiserpens]
                                                   [Loxanthocereus trujilloensis]
                                             <i>Cleistocactus jajoanus</i>
                                                   [Borzicactus jajoanus]
                                                   [Loxanthocereus jajoianus]
                                                   [Loxanthocereus riomajensis]
                                             <i>Cleistocactus laniceps</i>
                                                   [Cereus laniceps]
                                             <i>Cleistocactus leonensis</i>
                                             <i>Cleistocactus longiserpens</i>
                                             <i>Cleistocactus luribayensis</i>
                                                   [Cleistocactus glaucus]
                                                   [Cleistocactus granjaensis]
                                             <i>Cleistocactus micropetalus</i>
                                             <i>Cleistocactus morawetzianus</i>
                                                   [Cleistocactus villaazuensis]
                                                   [Cleistocactus villaazulensis]
                                                   [Corryocactus heteracanthus]
                                             <i>Cleistocactus neoroezlii</i>
                                                   [Borzicactus neoroezlii]
                                                   [Cleistocactus serpens]
                                             <i>Cleistocactus pachycladus</i>
                                                   [Loxanthocereus pachycladus]
                                                   [Loxanthocereus piscoensis]
                                                   [Loxanthocereus yauyosensis]
                                                   [Oreocereus piscoensis]
                                             <i>Cleistocactus parapetiensis</i>
                                             <i>Cleistocactus parviflorus</i>
                                                   [Cereus parviflorus]
                                                   [Cleistocactus areolatus]
                                                   [Cleistocactus fusiflorus]
                                                   [Cleistocactus herzogianus]
                                             <i>Cleistocactus plagiostoma</i>
                                                   [Borzicactus plagiostoma]
                                                   [Borzicactus purpureus]
                                                   [Borzicactus samnensis]
                                                   [Cereus plagiostoma]
                                                   [Cleistocactus fieldianus subsp. samnensis]
                                             <i>Cleistocactus pungens</i>
                                                   [Cleistocactus brevispinus]
                                                   [Loxanthocereus brevispinus]
                                             <i>Cleistocactus pycnacanthus</i>
                                                   [Cleistocactus morawetzianus var. pycnacanthus]
                                             <i>Cleistocactus reae</i>
                                             <i>Cleistocactus ritteri</i>
                                             <i>Cleistocactus samaipatanus</i>
                                                   [Bolivicereus brevicaulis]
                                                   [Bolivicereus croceus]
                                                   [Bolivicereus rufus]
                                                   [Bolivicereus samaipatanus var. multiflorus]
                                                   [Bolivicereus samaipatanus]
                                                   [Borzicactus samaipatanus]
                                             <i>Cleistocactus sepium</i>
                                                   [Borzicactus aequatorialis]
                                                   [Borzicactus morleyanus]
                                                   [Borzicactus sepium]
                                                   [Borzicactus ventimigliae]
                                                   [Borzicactus websterianus var. rufispinus]
                                                   [Borzicactus websterianus]
                                                   [Cactus sepium]
                                                   [Cleistocactus chotaensis]
                                                   [Cleistocactus roezlii]
                                                   [Matucana weberbaueri]
                                               <i>Cleistocactus sepium var. morleyanus</i>
                                               <i>Cleistocactus sepium var. sepium</i>
                                               <i>Cleistocactus sepium var. ventimigliae</i>
                                             <i>Cleistocactus sextonianus</i>
                                                   [Borzicactus sextonianus]
                                                   [Erdisia sextoniana]
                                                   [Loxanthocereus aticensis]
                                                   [Loxanthocereus camanaensis]
                                                   [Loxanthocereus nanus]
                                                   [Loxanthocereus puquiensis]
                                                   [Loxanthocereus sextonianus]
                                                   [Loxanthocereus splendens]
                                                   [Loxanthocereus variabilis]
                                             <i>Cleistocactus smaragdiflorus</i>
                                                   [Cleistocactus ferrarii]
                                             <i>Cleistocactus strausii</i>
                                                   [Pilocereus strausii]
                                             <i>Cleistocactus sulcifer</i>
                                                   [Borzicactus pseudothelegonus]
                                                   [Borzicactus sulcifer]
                                                   [Cleistocactus granditessellatus]
                                                   [Loxanthocereus granditessellatus]
                                                   [Loxanthocereus otuscensis]
                                                   [Loxanthocereus parvitesselatus]
                                                   [Loxanthocereus sulcifer]
                                             <i>Cleistocactus tarijensis</i>
                                             <i>Cleistocactus tenuiserpens</i>
                                                   [Borzicactus tenuiserpens]
                                             <i>Cleistocactus tominensis</i>
                                                   [Cereus tominensis]
                                                   [Cleistocactus capadalensis]
                                                   [Cleistocactus clavicaulis]
                                                   [Cleistocactus crassicaulis]
                                                   [Cleistocactus mendozae]
                                                   [Cleistocactus viridialabastri]
                                               <i>Cleistocactus tominensis subsp. micropetalus</i>
                                               <i>Cleistocactus tominensis subsp. tominensis</i>
                                             <i>Cleistocactus varispinus</i>
                                             <i>Cleistocactus vulpis-cauda</i>
                                             <i>Cleistocactus winteri</i>
                                               <i>Cleistocactus winteri subsp. colademono</i>
                                               <i>Cleistocactus winteri subsp. winteri</i>
                                             <i>Cleistocactus xylorhizus</i>
                                                   [Loxanthocereus xylorhizus]
                                     <i>Cochemiea</i>
                                             <i>Cochemiea conoidea</i>
                                                   [Mammillaria coronata]
                                             <i>Cochemiea dioica</i>
                                                   [Mammillaria goodrichii]
                                             <i>Cochemiea grahamii</i>
                                                   [Cactus grahamii]
                                             <i>Cochemiea halei</i>
                                                   [Mammillaria halei]
                                             <i>Cochemiea inexpectata</i>
                                                   [Neolloydia inexpectata]
                                             <i>Cochemiea maritima</i>
                                                   [Mammillaria maritima]
                                             <i>Cochemiea mazatlanensis</i>
                                             <i>Cochemiea pondii</i>
                                                   [Mammillaria pondii subsp. maritima]
                                                   [Mammillaria pondii subsp. pondii]
                                                   [Mammillaria pondii subsp. setispina]
                                                   [Mammillaria pondii]
                                             <i>Cochemiea poselgeri</i>
                                                   [Mammillaria poselgeri]
                                             <i>Cochemiea setispina</i>
                                                   [Mammillaria setispina]
                                     <i>Cochiseia</i>
                                     <i>Coleocephalocereus</i>
                                             <i>Coleocephalocereus albicephalus</i>
                                             <i>Coleocephalocereus aureus</i>
                                                   [Coleocephalocereus brevicylindricus]
                                                   [Coleocephalocereus elongatus]
                                             <i>Coleocephalocereus braunii</i>
                                             <i>Coleocephalocereus buxbaumianus</i>
                                               <i>Coleocephalocereus buxbaumianus subsp. buxbaumianus</i>
                                               <i>Coleocephalocereus buxbaumianus subsp. flavisetus</i>
                                             <i>Coleocephalocereus diersianus</i>
                                             <i>Coleocephalocereus dybowskii</i>
                                             <i>Coleocephalocereus estevesii</i>
                                             <i>Coleocephalocereus flavisetus</i>
                                             <i>Coleocephalocereus fluminensis</i>
                                                   [Cephalocereus fluminensis]
                                                   [Cereus fluminensis]
                                                   [Cereus melocactus]
                                               <i>Coleocephalocereus fluminensis subsp. decumbens</i>
                                                     [Coleocephalocereus decumbens]
                                               <i>Coleocephalocereus fluminensis subsp. fluminensis</i>
                                                     [Coleocephalocereus fluminensis subsp. braamhaarii]
                                                     [Coleocephalocereus fluminensis subsp. paulensis]
                                                     [Coleocephalocereus fluminensis var. braamhaarii]
                                                     [Leocereus paulensis]
                                             <i>Coleocephalocereus goebelianus</i>
                                                   [Cereus goebelianus]
                                             <i>Coleocephalocereus lehmannianus</i>
                                             <i>Coleocephalocereus pluricostatus</i>
                                                   [Coleocephalocereus pluricostatus subsp. uebelmanniorum]
                                                   [Coleocephalocereus uebelmanniorum]
                                             <i>Coleocephalocereus purpureus</i>
                                     <i>Coloradoa</i>
                                     <i>Consolea</i>
                                             <i>Consolea corallicola</i>
                                                   [Cactus spinosissimus]
                                                   [Opuntia corallicola]
                                                   [Opuntia spinosissima]
                                             <i>Consolea falcata</i>
                                             <i>Consolea macracantha</i>
                                                   [Consolea microcarpa]
                                                   [Consolea millspaughii subsp. caymanensis]
                                                   [Consolea millspaughii var. caymanensis]
                                                   [Consolea millspaughii]
                                                   [Consolea nashii subsp. gibarensis]
                                                   [Consolea nashii]
                                                   [Consolea picardae]
                                                   [Opuntia falcata]
                                                   [Opuntia millspaughii]
                                                   [Opuntia nashii]
                                                   [Opuntia picardae]
                                             <i>Consolea moniliformis</i>
                                                   [Consolea moniliformis subsp. guantanamana]
                                                   [Opuntia haitiensis]
                                                   [Opuntia testudinis var. crus]
                                                   [Opuntia urbaniana]
                                               <i>Consolea moniliformis subsp. rubescens</i>
                                                     [Opuntia guanicana]
                                             <i>Consolea rubescens</i>
                                                   [Opuntia rubescens]
                                             <i>Consolea spinosissima</i>
                                     <i>Copiapoa</i>
                                           [Copiapoa macracantha]
                                             <i>Copiapoa ahremephiana</i>
                                             <i>Copiapoa angustiflora</i>
                                             <i>Copiapoa atacamensis</i>
                                             <i>Copiapoa boliviana</i>
                                             <i>Copiapoa calderana</i>
                                               <i>Copiapoa calderana subsp. calderana</i>
                                             <i>Copiapoa calderiana</i>
                                               <i>Copiapoa calderiana subsp. atacamensis</i>
                                               <i>Copiapoa calderiana subsp. calderiana</i>
                                             <i>Copiapoa cinerascens</i>
                                                   [Copiapoa copiapensis]
                                             <i>Copiapoa cinerea</i>
                                               <i>Copiapoa cinerea subsp. cinerea</i>
                                               <i>Copiapoa cinerea subsp. columna-alba</i>
                                                     [Copiapoa columna-alba]
                                                     [Copiapoa melanohystrix]
                                               <i>Copiapoa cinerea subsp. haseltoniana</i>
                                                     [Copiapoa cinerea var. gigantea]
                                                     [Copiapoa eremophila]
                                                     [Copiapoa gigantea]
                                                     [Copiapoa haseltoniana]
                                                     [Copiapoa tenebrosa]
                                             <i>Copiapoa coquimbana</i>
                                                   [Copiapoa alticostata]
                                                   [Copiapoa coquimbana var. wagenknechtii]
                                                   [Copiapoa pendulina]
                                                   [Copiapoa pepiniana]
                                                   [Copiapoa pseudocoquimbana]
                                                   [Copiapoa vallenarensis]
                                                   [Echinocactus coquimbanus]
                                             <i>Copiapoa dealbata</i>
                                                   [Copiapoa carrizalensis]
                                                   [Copiapoa cinerea subsp. dealbata]
                                                   [Copiapoa cinerea var. dealbata]
                                             <i>Copiapoa decorticans</i>
                                             <i>Copiapoa echinoides</i>
                                                   [Copiapoa bridgesii]
                                                   [Copiapoa cuprea]
                                                   [Copiapoa cupreata]
                                                   [Copiapoa dura]
                                             <i>Copiapoa esmeraldana</i>
                                             <i>Copiapoa fiedleriana</i>
                                                   [Echinocactus fiedlerianus]
                                             <i>Copiapoa grandiflora</i>
                                                   [Copiapoa montana subsp. grandiflora]
                                             <i>Copiapoa humilis</i>
                                                   [Copiapoa chanaralensis]
                                                   [Copiapoa chaniaralensis]
                                                   [Copiapoa longispina]
                                                   [Echinocactus humilis]
                                               <i>Copiapoa humilis subsp. humilis</i>
                                                     [Copiapoa humilis subsp. australis]
                                               <i>Copiapoa humilis subsp. tenuissima</i>
                                                     [Copiapoa hypogaea subsp. tenuissima]
                                                     [Copiapoa tenuissima]
                                               <i>Copiapoa humilis subsp. tocopillana</i>
                                               <i>Copiapoa humilis subsp. variispinata</i>
                                                     [Copiapoa paposoensis]
                                                     [Copiapoa variispinata]
                                                     [Copiapoa varispinata]
                                               <i>Copiapoa humilis var. paposoensis</i>
                                             <i>Copiapoa hypogaea</i>
                                               <i>Copiapoa hypogaea subsp. hypogaea</i>
                                               <i>Copiapoa hypogaea subsp. laui</i>
                                                     [Copiapoa laui]
                                             <i>Copiapoa krainziana</i>
                                                   [Copiapoa cinerea subsp. krainziana]
                                                   [Copiapoa cinerea var. krainziana]
                                             <i>Copiapoa lembckei</i>
                                             <i>Copiapoa longistaminea</i>
                                                   [Copiapoa calderana subsp. longistaminea]
                                                   [Copiapoa calderiana subsp. longistaminea]
                                                   [Copiapoa cinerea subsp. longistaminea]
                                                   [Copiapoa cinerea var. longistaminea]
                                             <i>Copiapoa malletiana</i>
                                             <i>Copiapoa marginata</i>
                                                   [Copiapoa streptocaulon]
                                             <i>Copiapoa megarhiza</i>
                                               <i>Copiapoa megarhiza var. echinata</i>
                                                     [Copiapoa echinata]
                                                     [Copiapoa totoralensis]
                                               <i>Copiapoa megarhiza var. megarhiza</i>
                                             <i>Copiapoa mollicula</i>
                                             <i>Copiapoa montana</i>
                                                   [Copiapoa montana subsp. montana]
                                                   [Copiapoa olivana]
                                                   [Copiapoa rarissima]
                                             <i>Copiapoa rupestris</i>
                                               <i>Copiapoa rupestris subsp. desertorum</i>
                                             <i>Copiapoa serpentisulcata</i>
                                             <i>Copiapoa solaris</i>
                                                   [Copiapoa ferox]
                                             <i>Copiapoa taltalensis</i>
                                                   [Copiapoa aphanes]
                                                   [Echinocactus taltalensis]
                                               <i>Copiapoa taltalensis subsp. desertorum</i>
                                                     [Copiapoa desertorum]
                                               <i>Copiapoa taltalensis subsp. taltalensis</i>
                                                     [Copiapoa hornilloensis]
                                                     [Copiapoa rubriflora]
                                             <i>Copiapoa tocopillana</i>
                                     <i>Corryocactus</i>
                                             <i>Corryocactus apiciflorus</i>
                                                   [Cereus apiciflorus]
                                                   [Corryocactus huincoensis]
                                                   [Corryocactus matucanensis]
                                                   [Corryocactus melaleucus]
                                                   [Corryocactus solitarius]
                                                   [Corryocactus tenuiculus]
                                                   [Erdisia apiciflora]
                                                   [Erdisia fortalezensis]
                                                   [Erdisia tenuicula]
                                             <i>Corryocactus aureus</i>
                                                   [Borzicactus pisacensis]
                                                   [Borzicactus soukupii]
                                                   [Corryocactus acervatus]
                                                   [Corryocactus cuajonesensis]
                                                   [Corryocactus megarhizus]
                                                   [Corryocactus prostratus]
                                                   [Erdisia aureispina]
                                                   [Erdisia meyenii]
                                             <i>Corryocactus ayacuchoensis</i>
                                             <i>Corryocactus brachypetalus</i>
                                                   [Cereus brachypetalus]
                                             <i>Corryocactus brevistylus</i>
                                                   [Cereus brevistylus]
                                                   [Corryocactus brevispinus]
                                                   [Corryocactus brevistylus var. puquiensis]
                                                   [Corryocactus krausii]
                                                   [Corryocactus pachycladus]
                                               <i>Corryocactus brevistylus subsp. brevistylus</i>
                                               <i>Corryocactus brevistylus subsp. puquiensis</i>
                                                     [Corryocactus puquiensis]
                                             <i>Corryocactus chachapoyensis</i>
                                             <i>Corryocactus erectus</i>
                                                   [Erdisia erecta]
                                             <i>Corryocactus melanotrichus</i>
                                                   [Cereus melanotrichus]
                                                   [Corryocactus ayopayanus]
                                                   [Corryocactus charazanensis]
                                                   [Corryocactus otuyensis]
                                                   [Corryocactus perezianus]
                                                   [Corryocactus pulquinensis]
                                             <i>Corryocactus quadrangularis</i>
                                                   [Erdisia quadrangularis]
                                             <i>Corryocactus serpens</i>
                                             <i>Corryocactus squarrosus</i>
                                                   [Cereus squarrosus]
                                                   [Corryocactus brachycladus]
                                                   [Corryocactus chavinilloensis]
                                                   [Corryocactus gracilis]
                                                   [Corryocactus maximus]
                                                   [Corryocactus odoratus]
                                                   [Corryocactus pilispinus]
                                                   [Corryocactus pyroporphyranthus]
                                                   [Corryocactus quivillanus]
                                                   [Erdisia maxima]
                                                   [Erdisia squarrosa]
                                             <i>Corryocactus tarijensis</i>
                                     <i>Corynopuntia</i>
                                             <i>Corynopuntia aggeria</i>
                                             <i>Corynopuntia bulbispina</i>
                                                   [Opuntia bulbispina]
                                             <i>Corynopuntia grahamii</i>
                                             <i>Corynopuntia moelleri</i>
                                                   [Opuntia moelleri]
                                             <i>Corynopuntia schottii</i>
                                             <i>Corynopuntia stanleyi</i>
                                             <i>Corynopuntia vilis</i>
                                                   [Opuntia vilis]
                                     <i>Coryphantha</i>
                                             <i>Coryphantha alversonii</i>
                                                   [Coryphantha vivipara var. alversonii]
                                                   [Escobaria alversonii]
                                                   [Escobaria vivipara var. alversonii]
                                                   [Mammillaria alversonii]
                                             <i>Coryphantha bernalensis</i>
                                             <i>Coryphantha bumamma</i>
                                             <i>Coryphantha chaffeyi</i>
                                             <i>Coryphantha chihuahuensis</i>
                                             <i>Coryphantha clavata</i>
                                                   [Mammillaria clavata]
                                                   [Neolloydia clavata]
                                               <i>Coryphantha clavata subsp. clavata</i>
                                                     [Coryphantha unicornis]
                                               <i>Coryphantha clavata subsp. stipitata</i>
                                             <i>Coryphantha compacta</i>
                                                   [Coryphantha palmeri]
                                                   [Mammillaria compacta]
                                             <i>Coryphantha cornifera</i>
                                                   [Cactus cornifer]
                                                   [Cactus radians var. pectinoides]
                                                   [Coryphantha cornuta]
                                                   [Coryphantha schwarziana]
                                             <i>Coryphantha cuencamensis</i>
                                             <i>Coryphantha delaetiana</i>
                                                   [Coryphantha gladiispina]
                                                   [Coryphantha salm-dyckiana]
                                                   [Mammillaria delaetiana]
                                             <i>Coryphantha delicata</i>
                                                   [Coryphantha panarottoi]
                                             <i>Coryphantha difficilis</i>
                                                   [Coryphantha densispina]
                                                   [Mammillaria difficilis]
                                             <i>Coryphantha duncanii</i>
                                                   [Escobaria dasyacantha var. duncanii]
                                                   [Escobaria duncanii]
                                                   [Mammillaria duncanii]
                                             <i>Coryphantha durangensis</i>
                                                   [Mammillaria durangensis]
                                               <i>Coryphantha durangensis subsp. cuencamensis</i>
                                               <i>Coryphantha durangensis subsp. durangensis</i>
                                             <i>Coryphantha echinoidea</i>
                                                   [Mammillaria echinoidea]
                                             <i>Coryphantha echinus</i>
                                                   [Coryphantha cornifera var. echinus]
                                                   [Coryphantha pectinata]
                                                   [Mammillaria echinus]
                                                   [Mammillaria pectinata]
                                               <i>Coryphantha echinus var. echinus</i>
                                               <i>Coryphantha echinus var. robusta</i>
                                             <i>Coryphantha elephantidens</i>
                                                   [Coryphantha garessii]
                                               <i>Coryphantha elephantidens subsp. bumamma</i>
                                                     [Mammillaria elephantidens var. bumamma]
                                               <i>Coryphantha elephantidens subsp. elephantidens</i>
                                                     [Coryphantha recurvispina]
                                               <i>Coryphantha elephantidens subsp. greenwoodii</i>
                                                     [Coryphantha greenwoodii]
                                             <i>Coryphantha erecta</i>
                                             <i>Coryphantha georgii</i>
                                             <i>Coryphantha glanduligera</i>
                                                   [Coryphantha bergeriana]
                                                   [Mammillaria glanduligera]
                                             <i>Coryphantha glassii</i>
                                             <i>Coryphantha gracilis</i>
                                             <i>Coryphantha grata</i>
                                             <i>Coryphantha hesteri</i>
                                                   [Escobaria hesteri]
                                             <i>Coryphantha hintoniorum</i>
                                               <i>Coryphantha hintoniorum subsp. geoffreyi</i>
                                               <i>Coryphantha hintoniorum subsp. hintoniorum</i>
                                             <i>Coryphantha jalpanensis</i>
                                             <i>Coryphantha jaumavei</i>
                                             <i>Coryphantha kracikii</i>
                                             <i>Coryphantha laredoi</i>
                                             <i>Coryphantha laui</i>
                                             <i>Coryphantha longicornis</i>
                                                   [Coryphantha grandis]
                                             <i>Coryphantha macromeris</i>
                                               <i>Coryphantha macromeris subsp. macromeris</i>
                                               <i>Coryphantha macromeris subsp. runyonii</i>
                                                     [Coryphantha pirtlei]
                                               <i>Coryphantha macromeris var. macromeris</i>
                                               <i>Coryphantha macromeris var. runyonii</i>
                                             <i>Coryphantha maiz-tablasensis</i>
                                             <i>Coryphantha maliterrarum</i>
                                             <i>Coryphantha minima</i>
                                                   [Escobaria minima]
                                             <i>Coryphantha muehlenpfordtii</i>
                                             <i>Coryphantha neglecta</i>
                                             <i>Coryphantha nickelsiae</i>
                                                   [Coryphantha calochlora]
                                                   [Mammillaria nickelsae]
                                             <i>Coryphantha octacantha</i>
                                                   [Coryphantha clava]
                                                   [Mammillaria octacantha]
                                             <i>Coryphantha odorata</i>
                                                   [Neolloydia odorata]
                                             <i>Coryphantha orcuttii</i>
                                             <i>Coryphantha ottonis</i>
                                                   [Coryphantha bussleri]
                                                   [Coryphantha guerkeana]
                                             <i>Coryphantha pallida</i>
                                               <i>Coryphantha pallida subsp. calipensis</i>
                                                     [Coryphantha calipensis]
                                               <i>Coryphantha pallida subsp. pallida</i>
                                                     [Coryphantha pseudoradians]
                                                     [Coryphantha reduncispina]
                                                     [Coryphantha reduncuspina]
                                             <i>Coryphantha poselgeriana</i>
                                                   [Coryphantha valida]
                                                   [Echinocactus poselgerianus]
                                             <i>Coryphantha potosiana</i>
                                                   [Mammillaria potosiana]
                                             <i>Coryphantha pottsiana</i>
                                             <i>Coryphantha pseudoechinus</i>
                                               <i>Coryphantha pseudoechinus subsp. laui</i>
                                               <i>Coryphantha pseudoechinus subsp. pseudoechinus</i>
                                             <i>Coryphantha pseudonickelsae</i>
                                                   [Coryphantha indensis]
                                             <i>Coryphantha pulleineana</i>
                                                   [Neolloydia pulleineana]
                                             <i>Coryphantha pusilliflora</i>
                                             <i>Coryphantha pycnacantha</i>
                                                   [Coryphantha andreae]
                                                   [Coryphantha conimamma]
                                                   [Coryphantha connivens]
                                                   [Mammillaria pycnacantha]
                                             <i>Coryphantha radians</i>
                                             <i>Coryphantha ramillosa</i>
                                                   [Mammillaria ramillosa]
                                               <i>Coryphantha ramillosa subsp. ramillosa</i>
                                               <i>Coryphantha ramillosa subsp. santarosa</i>
                                             <i>Coryphantha recurvata</i>
                                                   [Mammillaria recurvata]
                                             <i>Coryphantha retusa</i>
                                                   [Coryphantha melleospina]
                                             <i>Coryphantha robbinsiorum</i>
                                             <i>Coryphantha robbinsorum</i>
                                                   [Cochiseia robbinsorum]
                                                   [Escobaria robbinsiorum]
                                                   [Escobaria robbinsorum]
                                             <i>Coryphantha robertii</i>
                                             <i>Coryphantha robustispina</i>
                                                   [Cactus robustispinus]
                                                   [Mammillaria robustispina]
                                               <i>Coryphantha robustispina subsp. robustispina</i>
                                                     [Coryphantha muehlenpfordtii subsp. robustispina]
                                                     [Coryphantha muehlenpfordtii var. robustispina]
                                               <i>Coryphantha robustispina subsp. scheeri</i>
                                                     [Coryphantha neoscheeri]
                                                     [Coryphantha scheeri var. robustispina]
                                                     [Coryphantha scheeri var. scheeri]
                                                     [Coryphantha scheeri var. valida]
                                                     [Coryphantha scheeri]
                                                     [Mammillaria scheeri var. valida]
                                                     [Mammillaria scheeri]
                                               <i>Coryphantha robustispina subsp. uncinata</i>
                                                     [Coryphantha scheeri var. uncinata]
                                             <i>Coryphantha runyonii</i>
                                             <i>Coryphantha salinensis</i>
                                                   [Coryphantha borwigii]
                                                   [Echinocactus salinensis]
                                             <i>Coryphantha scolymoides</i>
                                             <i>Coryphantha sulcata</i>
                                                   [Coryphantha obscura]
                                                   [Coryphantha roederiana]
                                                   [Coryphantha speciosa]
                                               <i>Coryphantha sulcata var. nickelsiae</i>
                                               <i>Coryphantha sulcata var. sulcata</i>
                                             <i>Coryphantha sulcolanata</i>
                                             <i>Coryphantha tripugionacantha</i>
                                             <i>Coryphantha tuberculosa</i>
                                                   [Coryphantha dasyacantha var. varicolor]
                                                   [Coryphantha strobiliformis var. strobiliformis]
                                                   [Coryphantha strobiliformis]
                                                   [Escobaria dasyacantha var. varicolor]
                                                   [Escobaria strobiliformis]
                                                   [Escobaria tuberculosa var. varicolor]
                                                   [Mammillaria tuberculosa]
                                                   [Mammillaria varicolor]
                                               <i>Coryphantha tuberculosa var. tuberculosa</i>
                                             <i>Coryphantha vaupeliana</i>
                                             <i>Coryphantha villarensis</i>
                                             <i>Coryphantha vivipara</i>
                                               <i>Coryphantha vivipara var. deserti</i>
                                                     [Coryphantha chlorantha]
                                                     [Coryphantha deserti]
                                                     [Coryphantha vivipara var. buoflama]
                                                     [Escobaria vivipara var. buoflama]
                                                     [Escobaria vivipara var. deserti]
                                                     [Mammillaria chlorantha]
                                                     [Mammillaria deserti]
                                                     [Mammillaria vivipara var. deserti]
                                               <i>Coryphantha vivipara var. vivipara</i>
                                                     [Coryphantha arizonica]
                                                     [Coryphantha bisbeeana]
                                                     [Coryphantha fragrans]
                                                     [Coryphantha neomexicana]
                                                     [Coryphantha radiosa]
                                                     [Coryphantha rosea]
                                                     [Coryphantha vivipara var. arizonica]
                                                     [Coryphantha vivipara var. bisbeeana]
                                                     [Coryphantha vivipara var. kaibabensis]
                                                     [Coryphantha vivipara var. neomexicana]
                                                     [Coryphantha vivipara var. radiosa]
                                                     [Coryphantha vivipara var. rosea]
                                                     [Escobaria vivipara var. arizonica]
                                                     [Escobaria vivipara var. bisbeeana]
                                                     [Escobaria vivipara var. kaibabensis]
                                                     [Escobaria vivipara var. neomexicana]
                                                     [Escobaria vivipara var. radiosa]
                                                     [Escobaria vivipara var. rosea]
                                                     [Escobaria vivipara var. vivipara]
                                                     [Escobaria vivipara]
                                                     [Mammillaria arizonica]
                                                     [Mammillaria neomexicana]
                                                     [Mammillaria radiosa]
                                                     [Mammillaria vivipara var. arizonica]
                                                     [Mammillaria vivipara var. borealis]
                                                     [Mammillaria vivipara var. neomexicana]
                                                     [Mammillaria vivipara var. radiosa]
                                                     [Mammillaria vivipara]
                                               <i>Coryphantha vivipara vivipara</i>
                                             <i>Coryphantha vogtherriana</i>
                                             <i>Coryphantha werdermannii</i>
                                             <i>Coryphantha wohlschlageri</i>
                                     <i>Cumulopuntia</i>
                                             <i>Cumulopuntia boliviana</i>
                                                   [Cumulopuntia famatinensis]
                                                   [Cumulopuntia pampana]
                                                   [Maihueniopsis boliviana]
                                                   [Opuntia boliviana]
                                                   [Tephrocactus albiscoparius]
                                                   [Tephrocactus asplundii]
                                                   [Tephrocactus bolivianus]
                                                   [Tephrocactus melanacanthus]
                                               <i>Cumulopuntia boliviana subsp. boliviana</i>
                                                     [Cumulopuntia fulvicoma]
                                                     [Cumulopuntia galerasensis]
                                                     [Cumulopuntia pyrrhacantha]
                                                     [Cumulopuntia recurvata]
                                                     [Maihueniopsis pentlandii]
                                                     [Opuntia backebergii]
                                                     [Opuntia fulvicoma]
                                                     [Opuntia galerasensis]
                                                     [Opuntia pentlandii]
                                                     [Opuntia pyrrhacantha]
                                                     [Tephrocactus fulvicomus]
                                                     [Tephrocactus pentlandii]
                                                     [Tephrocactus pyrrhacanthus]
                                                     [Tephrocactus rarissimus]
                                                     [Tephrocactus subinermis]
                                                     [Tephrocactus wilkeanus]
                                               <i>Cumulopuntia boliviana subsp. dactylifera</i>
                                                     [Cumulopuntia dactylifera]
                                                     [Opuntia dactylifera]
                                                     [Tephrocactus dactyliferus]
                                                     [Tephrocactus noodtiae]
                                               <i>Cumulopuntia boliviana subsp. echinacea</i>
                                                     [Cumulopuntia echinacea]
                                                     [Tephrocactus echinaceus]
                                               <i>Cumulopuntia boliviana subsp. ignescens</i>
                                                     [Cumulopuntia frigida]
                                                     [Cumulopuntia mistiensis]
                                                     [Cumulopuntia ticnamarensis]
                                                     [Opuntia frigida]
                                                     [Opuntia guatinensis]
                                                     [Opuntia ignescens]
                                                     [Opuntia mistiensis]
                                                     [Opuntia sanctae-barbarae]
                                                     [Opuntia ticnamarensis]
                                                     [Tephrocactus ignescens]
                                                     [Tephrocactus mistiensis]
                                             <i>Cumulopuntia chichensis</i>
                                                   [Opuntia chichensis]
                                                   [Tephrocactus chichensis]
                                                   [Tephrocactus ferocior]
                                             <i>Cumulopuntia hystrix</i>
                                             <i>Cumulopuntia ignescens</i>
                                             <i>Cumulopuntia rossiana</i>
                                                   [Opuntia rossiana]
                                                   [Tephrocactus microclados]
                                             <i>Cumulopuntia sphaerica</i>
                                                   [Cumulopuntia alboareolata]
                                                   [Cumulopuntia berteroi]
                                                   [Cumulopuntia corotilla]
                                                   [Cumulopuntia crassicylindrica]
                                                   [Cumulopuntia ignota]
                                                   [Cumulopuntia kuehnrichiana]
                                                   [Cumulopuntia multiareolata]
                                                   [Cumulopuntia rauppiana]
                                                   [Cumulopuntia tubercularis]
                                                   [Cumulopuntia tumida]
                                                   [Cumulopuntia unguispina]
                                                   [Cumulopuntia zehnderi]
                                                   [Opuntia corotilla]
                                                   [Opuntia crassicylindrica]
                                                   [Opuntia leucophaea]
                                                   [Opuntia tumida]
                                                   [Opuntia unguispina]
                                                   [Opuntia zehnderi]
                                                   [Tephrocactus alboareolatus]
                                                   [Tephrocactus corotilla]
                                                   [Tephrocactus crassicylindricus]
                                                   [Tephrocactus dimorphus]
                                                   [Tephrocactus kuehnrichianus]
                                                   [Tephrocactus mirus]
                                                   [Tephrocactus muellerianus]
                                                   [Tephrocactus multiareolatus]
                                                   [Tephrocactus sphaericus]
                                                   [Tephrocactus zehnderi]
                                             <i>Cumulopuntia tortispina</i>
                                     <i>Cylindropuntia</i>
                                             <i>Cylindropuntia X deserta</i>
                                                   [Opuntia x deserta]
                                             <i>Cylindropuntia abyssi</i>
                                                   [Cylindropuntia abysii]
                                                   [Opuntia abysii]
                                             <i>Cylindropuntia acanthocarpa</i>
                                                   [Opuntia acanthocarpa var. ramosa]
                                                   [Opuntia acanthocarpa]
                                               <i>Cylindropuntia acanthocarpa acanthocarpa</i>
                                               <i>Cylindropuntia acanthocarpa subsp. acanthocarpa</i>
                                                     [Opuntia acanthocarpa subsp. acanthocarpa]
                                               <i>Cylindropuntia acanthocarpa subsp. coloradensis</i>
                                               <i>Cylindropuntia acanthocarpa subsp. major</i>
                                                     [Cylindropuntia acanthocarpa subsp. ramosa]
                                               <i>Cylindropuntia acanthocarpa subsp. thornberi</i>
                                               <i>Cylindropuntia acanthocarpa var. acanthocarpa</i>
                                                     [Opuntia acanthocarpa var. acanthocarpa]
                                               <i>Cylindropuntia acanthocarpa var. coloradensis</i>
                                                     [Opuntia acanthocarpa var. coloradensis]
                                               <i>Cylindropuntia acanthocarpa var. major</i>
                                                     [Opuntia acanthocarpa var. major]
                                                     [Opuntia echinocarpa var. major]
                                               <i>Cylindropuntia acanthocarpa var. ramosa</i>
                                               <i>Cylindropuntia acanthocarpa var. thornberi</i>
                                                     [Opuntia acanthocarpa var. thornberi]
                                                     [Opuntia thornberi]
                                             <i>Cylindropuntia acanthocarpa x C. bigelovii</i>
                                             <i>Cylindropuntia acanthocarpa x C. spinosior</i>
                                                           <i>Cylindropuntia acanthocarpa x spinosior</i>
                                             <i>Cylindropuntia alcahes</i>
                                                   [Cylindropuntia alcahes var. burrageana]
                                                   [Cylindropuntia brevispina]
                                               <i>Cylindropuntia alcahes alcahes</i>
                                               <i>Cylindropuntia alcahes subsp. alcahes</i>
                                               <i>Cylindropuntia alcahes subsp. burrageana</i>
                                                     [Opuntia brevispina]
                                                     [Opuntia echinocarpa var. nuda]
                                               <i>Cylindropuntia alcahes subsp. gigantensis</i>
                                                     [Cylindropuntia alcahes var. gigantensis]
                                               <i>Cylindropuntia alcahes subsp. mcgillii</i>
                                                     [Cylindropuntia alcahes var. mcgillii]
                                                     [Opuntia alcahes]
                                               <i>Cylindropuntia alcahes var. alcahes</i>
                                             <i>Cylindropuntia anteojoensis</i>
                                             <i>Cylindropuntia arbuscula</i>
                                                   [Cylindropuntia vivipara]
                                                   [Opuntia arbuscula]
                                             <i>Cylindropuntia bigelovii</i>
                                                   [Opuntia bigelovii]
                                               <i>Cylindropuntia bigelovii bigelovii</i>
                                               <i>Cylindropuntia bigelovii subsp. bigelovii</i>
                                               <i>Cylindropuntia bigelovii subsp. ciribe</i>
                                                     [Cylindropuntia bigelovii var. ciribe]
                                                     [Cylindropuntia ciribe]
                                                     [Opuntia bigelovii var. ciribe]
                                                     [Opuntia ciribe]
                                               <i>Cylindropuntia bigelovii var. bigelovii</i>
                                                     [Opuntia bigelovii var. bigelovii]
                                             <i>Cylindropuntia californica</i>
                                                   [Cereus californicus]
                                               <i>Cylindropuntia californica californica</i>
                                               <i>Cylindropuntia californica subsp. californica</i>
                                                     [Cylindropuntia bernardina]
                                               <i>Cylindropuntia californica subsp. delgadilloana</i>
                                                     [Cylindropuntia californica var. delgadilloana]
                                               <i>Cylindropuntia californica subsp. parkeri</i>
                                                     [Cylindropuntia parryi]
                                                     [Opuntia bernardina]
                                                     [Opuntia echinocarpa var. parkeri]
                                                     [Opuntia parryi var. serpentina]
                                               <i>Cylindropuntia californica subsp. rosarica</i>
                                                     [Opuntia rosarica]
                                               <i>Cylindropuntia californica var. californica</i>
                                                     [Opuntia californica var. californica]
                                               <i>Cylindropuntia californica var. parkeri</i>
                                                     [Opuntia californica var. parkeri]
                                                     [Opuntia parryi parryi]
                                                     [Opuntia parryi var. parryi]
                                                     [Opuntia parryi]
                                               <i>Cylindropuntia californica var. rosarica</i>
                                                     [Cylindropuntia rosarica]
                                             <i>Cylindropuntia calmalliana</i>
                                             <i>Cylindropuntia cardenche</i>
                                             <i>Cylindropuntia caribaea</i>
                                                   [Cylindropuntia metuenda]
                                                   [Opuntia caribaea]
                                             <i>Cylindropuntia cedrosensis</i>
                                             <i>Cylindropuntia cholla</i>
                                                   [Opuntia cholla]
                                             <i>Cylindropuntia chuckwallensis</i>
                                             <i>Cylindropuntia clavellina</i>
                                             <i>Cylindropuntia davisii</i>
                                                   [Opuntia davisii]
                                                   [Opuntia tunicata var. davisii]
                                             <i>Cylindropuntia delgadilloana</i>
                                             <i>Cylindropuntia echinocarpa</i>
                                                   [Cylindropuntia wigginsii]
                                                   [Opuntia echinocarpa]
                                                   [Opuntia wigginsi]
                                               <i>Cylindropuntia echinocarpa var. echinocarpa</i>
                                                     [Opuntia echinocarpa var. echinocarpa]
                                             <i>Cylindropuntia fosbergii</i>
                                                   [Opuntia bigelovii var. hoffmannii]
                                                   [Opuntia fosbergii]
                                             <i>Cylindropuntia fulgida</i>
                                                   [Opuntia fulgida]
                                               <i>Cylindropuntia fulgida var. fulgida</i>
                                                     [Opuntia fulgida var. fulgida]
                                               <i>Cylindropuntia fulgida var. mamillata</i>
                                                     [Opuntia fulgida var. mamillata]
                                                     [Opuntia mamillata]
                                             <i>Cylindropuntia ganderi</i>
                                                   [Opuntia acanthocarpa var. ganderi]
                                                   [Opuntia ganderi]
                                               <i>Cylindropuntia ganderi ganderi</i>
                                               <i>Cylindropuntia ganderi subsp. catavinensis</i>
                                                     [Opuntia acanthocarpa subsp. ganderi]
                                               <i>Cylindropuntia ganderi subsp. ganderi</i>
                                               <i>Cylindropuntia ganderi var. catavinensis</i>
                                               <i>Cylindropuntia ganderi var. ganderi</i>
                                             <i>Cylindropuntia hystrix</i>
                                                   [Opuntia hystrix]
                                             <i>Cylindropuntia imbricata</i>
                                                   [Cylindropuntia lloydii]
                                                   [Opuntia imbricata]
                                               <i>Cylindropuntia imbricata imbricata</i>
                                               <i>Cylindropuntia imbricata subsp. argentea</i>
                                               <i>Cylindropuntia imbricata subsp. cardenche</i>
                                               <i>Cylindropuntia imbricata subsp. imbricata</i>
                                               <i>Cylindropuntia imbricata var. argentea</i>
                                                     [Opuntia imbricata var. argentea]
                                               <i>Cylindropuntia imbricata var. imbricata</i>
                                                     [Cereus imbricatus]
                                                     [Opuntia arborescens]
                                                     [Opuntia imbricata var. arborescens]
                                                     [Opuntia imbricata var. imbricata]
                                                     [Opuntia imbricata var. vexans]
                                               <i>Cylindropuntia imbricata var. spinotecta</i>
                                                     [Cylindropuntia spinotecta]
                                                     [Opuntia spinotecta]
                                             <i>Cylindropuntia imbricata x spinosior</i>
                                             <i>Cylindropuntia kelvinensis</i>
                                             <i>Cylindropuntia kleiniae</i>
                                                   [Cylindropuntia recondita]
                                                   [Opuntia perrita]
                                                   [Opuntia recondita]
                                                   [Opuntia wrightii]
                                             <i>Cylindropuntia leptocalis X acanthocarpa</i>
                                             <i>Cylindropuntia leptocaulis</i>
                                                   [Cylindropuntia brittonii]
                                                   [Opuntia frutescens]
                                                   [Opuntia leptocaulis var. brittonii]
                                                   [Opuntia leptocaulis var. leptocaulis]
                                                   [Opuntia leptocaulis]
                                                   [Opuntia vaginata]
                                             <i>Cylindropuntia leptocaulis x spinosior</i>
                                             <i>Cylindropuntia leptocaulis x thurberi</i>
                                             <i>Cylindropuntia leptocaulis x versicolor</i>
                                             <i>Cylindropuntia leptocaulis x whipplei</i>
                                             <i>Cylindropuntia libertadensis</i>
                                             <i>Cylindropuntia lindsayi</i>
                                                   [Opuntia lindsayi]
                                             <i>Cylindropuntia molesta</i>
                                                   [Cylindropuntia molesta var. clavellina]
                                                   [Opuntia molesta]
                                               <i>Cylindropuntia molesta molesta</i>
                                               <i>Cylindropuntia molesta subsp. clavellina</i>
                                               <i>Cylindropuntia molesta subsp. molesta</i>
                                               <i>Cylindropuntia molesta var. molesta</i>
                                             <i>Cylindropuntia multigeniculata</i>
                                             <i>Cylindropuntia munzii</i>
                                                   [Cylindropuntia x munzii]
                                                   [Opuntia munzii]
                                             <i>Cylindropuntia neoarbuscula</i>
                                             <i>Cylindropuntia prolifera</i>
                                                   [Opuntia prolifera]
                                             <i>Cylindropuntia ramosissima</i>
                                                   [Opuntia ramosissima]
                                                   [Opuntia tessellata]
                                             <i>Cylindropuntia rosea</i>
                                                   [Cylindropuntia imbricata var. rosea]
                                                   [Cylindropuntia pallida]
                                                   [Opuntia pallida]
                                                   [Opuntia rosea]
                                             <i>Cylindropuntia sanfelipensis</i>
                                             <i>Cylindropuntia santamaria</i>
                                                   [Grusonia santamaria]
                                                   [Opuntia santamaria]
                                             <i>Cylindropuntia spinosior</i>
                                                   [Cylindropuntia imbricata subsp. spinosior]
                                                   [Cylindropuntia imbricata var. spinosior]
                                                   [Opuntia spinosior var. neomexicana]
                                                   [Opuntia spinosior]
                                                   [Opuntia whipplei var. spinosior]
                                             <i>Cylindropuntia tesajo</i>
                                                   [Opuntia cineracea]
                                                   [Opuntia tesajo]
                                             <i>Cylindropuntia tetracantha</i>
                                             <i>Cylindropuntia thurberi</i>
                                                   [Opuntia thurberi]
                                               <i>Cylindropuntia thurberi subsp. alamosensis</i>
                                                     [Cylindropuntia alamosensis]
                                                     [Opuntia thurberi var. alamosensis]
                                               <i>Cylindropuntia thurberi subsp. thurberi</i>
                                               <i>Cylindropuntia thurberi var. thurberi</i>
                                             <i>Cylindropuntia tunicata</i>
                                                   [Cactus tunicatus]
                                                   [Opuntia puelchana]
                                                   [Opuntia tunicata var. tunicata]
                                                   [Opuntia tunicata]
                                             <i>Cylindropuntia versicolor</i>
                                                   [Cylindropuntia thurberi subsp. versicolor]
                                                   [Cylindropuntia thurberi var. versicolor]
                                                   [Opuntia thurberi subsp. versicolor]
                                                   [Opuntia thurberi var. versicolor]
                                                   [Opuntia versicolor var. versicolor]
                                                   [Opuntia versicolor var. violacea]
                                                   [Opuntia versicolor]
                                             <i>Cylindropuntia waltoniorum</i>
                                             <i>Cylindropuntia whipplei</i>
                                                   [Cylindropuntia hualpaensis]
                                                   [Opuntia whipplei var. enodis]
                                                   [Opuntia whipplei var. whipplei]
                                                   [Opuntia whipplei]
                                               <i>Cylindropuntia whipplei var. enodis</i>
                                               <i>Cylindropuntia whipplei var. whipplei</i>
                                             <i>Cylindropuntia wolfii</i>
                                                   [Opuntia echinocarpa var. wolfii]
                                                   [Opuntia wolfei]
                                                   [Opuntia wolfii]
                                             <i>Cylindropuntia x congesta</i>
                                                   [Cylindropuntia congesta]
                                                   [Opuntia congesta]
                                                   [Opuntia x congesta]
                                             <i>Cylindropuntia x fosbergii</i>
                                             <i>Cylindropuntia x kelvinensis</i>
                                                   [Opuntia kelvinensis]
                                                   [Opuntia x kelvinensis]
                                             <i>Cylindropuntia x neoarbuscula</i>
                                                   [Opuntia X neoarbuscula]
                                                   [Opuntia neoarbuscula]
                                             <i>Cylindropuntia x tetracantha</i>
                                                   [Opuntia X tetracantha]
                                                   [Opuntia californica]
                                                   [Opuntia kleiniae var. tetracantha]
                                                   [Opuntia tetracantha]
                                             <i>Cylindropuntia x viridiflora</i>
                                                   [Opuntia whipplei var. viridiflora]
                                                   [Opuntia x viridiflora]
                                             <i>Cylindropuntia x vivipara</i>
                                                   [Opuntia X vivipara]
                                                   [Opuntia imbricata var. viridiflora]
                                                   [Opuntia vivipara]
                                             <i>Cylindropuntia × campii</i>
                                                   [Opuntia x campii]
                                             <i>Cylindropuntia × multigeniculata</i>
                                                   [Opuntia multigeniculata]
                                                   [Opuntia whipplei var. multigeniculata]
                                                   [Opuntia x multigeniculata]
                                             <i>Cylindropuntia × viridiflora</i>
                                                   [Cylindropuntia × anasaziensis]
                                             <i>Cylindropuntia ×viridiflora</i>
                                     <i>Deamia</i>
                                             <i>Deamia chontalensis</i>
                                             <i>Deamia testudo</i>
                                                   [Deamia diabolica]
                                     <i>Dendrocereus</i>
                                             <i>Dendrocereus nudiflorus</i>
                                             <i>Dendrocereus undulosus</i>
                                     <i>Denmoza</i>
                                             <i>Denmoza rhodacantha</i>
                                                   [Denmoza erythrocephalus]
                                                   [Echinocactus rhodacanthus]
                                     <i>Discocactus</i>
                                             <i>Discocactus albispinus</i>
                                             <i>Discocactus araneispinus</i>
                                             <i>Discocactus bahiensis</i>
                                                   [Discocactus bahiensis subsp. subviridigriseus]
                                                   [Discocactus subviridigriseus]
                                             <i>Discocactus boliviensis</i>
                                             <i>Discocactus boomianus</i>
                                             <i>Discocactus buenekeri</i>
                                             <i>Discocactus catingicola</i>
                                                   [Discocactus cangaensis]
                                                   [Discocactus catingicola subsp. rapirhizua]
                                                   [Discocactus catingicola var. griseus]
                                                   [Discocactus crassispinus subsp. araguaiensis]
                                                   [Discocactus crassispinus]
                                                   [Discocactus estevesii]
                                                   [Discocactus griseus]
                                                   [Discocactus heptacanthus subsp. catingicola]
                                                   [Discocactus nigrisaetosus]
                                                   [Discocactus piauiensis]
                                                   [Discocactus praminentigibbus]
                                                   [Discocactus promentigibbus]
                                                   [Discocactus rapirhizus]
                                                   [Discocactus silicicola]
                                                   [Discocactus silvaticus]
                                                   [Discocactus spinosior]
                                             <i>Discocactus diersianus</i>
                                                   [Discocactus cephaliaciculosus subsp. nudicephalus]
                                                   [Discocactus cephaliaciculosus]
                                                   [Discocactus goianus]
                                                   [Discocactus lindaianus]
                                             <i>Discocactus ferricola</i>
                                             <i>Discocactus hartmannii</i>
                                                   [Discocactus hartmannii var. magnimammus]
                                                   [Discocactus hartmannii var. patulifolius]
                                                   [Discocactus heptacanthus subsp. magnimammus]
                                                   [Discocactus magnimammus subsp. bonitoensis]
                                                   [Discocactus magnimammus]
                                                   [Discocactus mamillosus]
                                                   [Discocactus pachythele]
                                                   [Discocactus patulifolius]
                                                   [Echinocactus hartmannii]
                                             <i>Discocactus heptacanthus</i>
                                                   [Discocactus flavispinus]
                                                   [Discocactus heptacanthus subsp. heptacanthus]
                                                   [Discocactus heptacanthus subsp. melanochlorus]
                                                   [Discocactus melanochlorus]
                                                   [Discocactus semicampaniflorus]
                                                   [Discocactus squamibaccatus]
                                                   [Discocactus subterraneo-prolifera]
                                                   [Discocactus subterraneo-proliferans]
                                                   [Malacocarpus heptacanthus]
                                             <i>Discocactus horstii</i>
                                             <i>Discocactus placentiformis</i>
                                                   [Discocactus crystallophilus]
                                                   [Discocactus latispinus]
                                                   [Discocactus multicolorispinus]
                                                   [Discocactus placentiformis subsp. alteolens]
                                                   [Discocactus placentiformis subsp. multicolorispinus]
                                                   [Discocactus placentiformis subsp. pugionacanthus]
                                                   [Discocactus pseudolatispinus]
                                                   [Discocactus pugionacanthus]
                                                   [Discocactus tricornis]
                                             <i>Discocactus pseudoinsignis</i>
                                             <i>Discocactus zehntneri</i>
                                               <i>Discocactus zehntneri subsp. boomianus</i>
                                                     [Discocactus zehntneri subsp. araneispinus]
                                                     [Discocactus zehntneri subsp. buenekeri]
                                                     [Discocactus zehntneri subsp. horstiorum]
                                               <i>Discocactus zehntneri subsp. zehntneri</i>
                                                     [Discocactus zehntneri subsp. albispinus]
                                     <i>Disocactus</i>
                                             <i>Disocactus ackermannii</i>
                                                   [Epiphyllum ackermannii]
                                                   [Nopalxochia ackermannii]
                                                   [Phyllocactus ackermannii]
                                               <i>Disocactus ackermannii subsp. ackermannii</i>
                                               <i>Disocactus ackermannii subsp. conzattianus</i>
                                                     [Nopalxochia conzattiana]
                                             <i>Disocactus amazonicus</i>
                                             <i>Disocactus anguliger</i>
                                             <i>Disocactus aurantiacus</i>
                                             <i>Disocactus biformis</i>
                                                   [Cereus biformis]
                                             <i>Disocactus crenatus</i>
                                               <i>Disocactus crenatus subsp. crenatus</i>
                                               <i>Disocactus crenatus subsp. kimnachii</i>
                                             <i>Disocactus eichlamii</i>
                                                   [Epiphyllum eichlamii]
                                                   [Phyllocactus eichlamii]
                                             <i>Disocactus flagelliformis</i>
                                                   [Aporocactus leptophis]
                                                   [Cactus flagelliformis]
                                             <i>Disocactus kimnachii</i>
                                             <i>Disocactus macdougallii</i>
                                                   [Nopalxochia macdougallii]
                                             <i>Disocactus macranthus</i>
                                                   [Pseudorhipsalis macrantha]
                                             <i>Disocactus martianus</i>
                                                   [Aporocactus conzattii]
                                                   [Aporocactus martianus]
                                                   [Cereus martianus]
                                             <i>Disocactus nelsonii</i>
                                                   [Chiapasia nelsonii]
                                                   [Epiphyllum nelsonii]
                                               <i>Disocactus nelsonii subsp. hondurensis</i>
                                               <i>Disocactus nelsonii subsp. nelsonii</i>
                                             <i>Disocactus phyllanthoides</i>
                                                   [Cactus phyllanthoides]
                                                   [Epiphyllum jenkinsonii]
                                                   [Epiphyllum phyllanthoides]
                                                   [Nopalxochia phyllanthoides]
                                                   [Phyllocactus phyllanthoides]
                                             <i>Disocactus quezaltecus</i>
                                                   [Bonifazia quezalteca]
                                                   [Epiphyllum quezaltecum]
                                             <i>Disocactus schrankii</i>
                                             <i>Disocactus speciosus</i>
                                                   [Cactus speciosus]
                                                   [Heliocereus speciosissimus]
                                               <i>Disocactus speciosus subsp. aurantiacus</i>
                                                     [Heliocereus aurantiacus]
                                               <i>Disocactus speciosus subsp. blomianus</i>
                                                     [Heliocereus aurantiacus var. blomianus]
                                               <i>Disocactus speciosus subsp. cinnabarinus</i>
                                                     [Disocactus cinnabarinus]
                                                     [Heliocereus cinnabarinus]
                                                     [Heliocereus heterodoxus]
                                               <i>Disocactus speciosus subsp. speciosus</i>
                                                     [Heliocereus amecamensis]
                                                     [Heliocereus luzmariae]
                                                     [Mediocactus coccineus]
                                             <i>Disocactus ×kimnachii</i>
                                                   [Nopalxochia ×horichii]
                                     <i>Dolichothele</i>
                                             <i>Dolichothele albescens</i>
                                             <i>Dolichothele sphaerica</i>
                                     <i>Eccremocactus</i>
                                             <i>Eccremocactus bradei</i>
                                     <i>Echinocactus</i>
                                             <i>Echinocactus alamosanus</i>
                                             <i>Echinocactus bicolor</i>
                                               <i>Echinocactus bicolor var. schottii</i>
                                             <i>Echinocactus brevihamatus</i>
                                             <i>Echinocactus coccineus</i>
                                             <i>Echinocactus cylindraceus</i>
                                             <i>Echinocactus emoryi</i>
                                             <i>Echinocactus falconeri</i>
                                             <i>Echinocactus fordii</i>
                                             <i>Echinocactus glaucus</i>
                                             <i>Echinocactus grusonii</i>
                                             <i>Echinocactus hamatacanthus</i>
                                             <i>Echinocactus horizonthalonius</i>
                                                   [Echinocactus horizontalis]
                                               <i>Echinocactus horizonthalonius var. centrispinus</i>
                                               <i>Echinocactus horizonthalonius var. horizonthalonius</i>
                                                     [Echinocactus horizonthalonius var. moelleri]
                                               <i>Echinocactus horizonthalonius var. nicholii</i>
                                                     [Echinocactus horizonthalonius subsp. nicholii]
                                             <i>Echinocactus longihamatus</i>
                                             <i>Echinocactus mariposensis</i>
                                             <i>Echinocactus megarrhizus</i>
                                             <i>Echinocactus myriostigma</i>
                                             <i>Echinocactus parryi</i>
                                                   [Emorycactus parryi]
                                             <i>Echinocactus platyacanthus</i>
                                                   [Echinocactus grandis]
                                                   [Echinocactus ingens]
                                                   [Echinocactus palmeri]
                                             <i>Echinocactus polyancistrus</i>
                                             <i>Echinocactus polycephalus</i>
                                                   [Emorycactus polycephalus]
                                               <i>Echinocactus polycephalus subsp. polycephalus</i>
                                                     [Homalocephala polycephala]
                                               <i>Echinocactus polycephalus var. polycephalus</i>
                                               <i>Echinocactus polycephalus var. polycephalus*</i>
                                               <i>Echinocactus polycephalus var. xeranthemoides</i>
                                                     [Echinocactus polycephalus subsp. xeranthemoides]
                                                     [Echinocactus xeranthemoides]
                                             <i>Echinocactus robustus</i>
                                             <i>Echinocactus scheeri</i>
                                             <i>Echinocactus setispinus</i>
                                               <i>Echinocactus setispinus var. hamatus</i>
                                             <i>Echinocactus sinuatus</i>
                                             <i>Echinocactus texensis</i>
                                                   [Echinocactus lindheimeri]
                                                   [Homalocephala texensis]
                                             <i>Echinocactus tobuschii</i>
                                             <i>Echinocactus villosus</i>
                                             <i>Echinocactus visnaga</i>
                                             <i>Echinocactus warnockii</i>
                                     <i>Echinocereus</i>
                                             <i>Echinocereus acanthosetus</i>
                                             <i>Echinocereus acifer</i>
                                                   [Cereus acifer]
                                               <i>Echinocereus acifer subsp. acifer</i>
                                                     [Echinocereus acifer subsp. ventanensis]
                                                     [Echinocereus polyacanthus subsp. acifer]
                                                     [Echinocereus triglochidiatus var. acifer]
                                               <i>Echinocereus acifer subsp. huitcholensis</i>
                                                     [Cereus huitcholensis]
                                                     [Echinocereus huitcholensis]
                                                     [Echinocereus polyacanthus subsp. huitcholensis]
                                                     [Echinocereus topiensis]
                                             <i>Echinocereus adustus</i>
                                               <i>Echinocereus adustus subsp. adustus</i>
                                               <i>Echinocereus adustus subsp. schwarzii</i>
                                                     [Echinocereus adustus subsp. roemerianus]
                                                     [Echinocereus schwarzii]
                                             <i>Echinocereus apachensis</i>
                                             <i>Echinocereus arizonicus</i>
                                                   [Echinocereus arizonicus subsp. oldachiorum]
                                                   [Echinocereus triglochidiatus var. arizonicus]
                                               <i>Echinocereus arizonicus subsp. arizonicus</i>
                                               <i>Echinocereus arizonicus subsp. matudae</i>
                                               <i>Echinocereus arizonicus subsp. nigrihorridispinus</i>
                                             <i>Echinocereus bacanorensis</i>
                                                   [Echinocereus klapperi subsp. bacanorensis]
                                                   [Echinocereus santaritensis subsp. bacanorensis]
                                             <i>Echinocereus barthelowanus</i>
                                             <i>Echinocereus berlandieri</i>
                                               <i>Echinocereus berlandieri var. blanckii</i>
                                               <i>Echinocereus berlandieri var. blankii</i>
                                               <i>Echinocereus berlandieri var. papillosus</i>
                                             <i>Echinocereus blanckii</i>
                                                   [Echinocereus blankii]
                                             <i>Echinocereus blumii</i>
                                             <i>Echinocereus bonkerae</i>
                                                   [Echinocereus fasciculatus subsp. bonkerae]
                                                   [Echinocereus fendleri var. bonkerae]
                                               <i>Echinocereus bonkerae subsp. apachensis</i>
                                               <i>Echinocereus bonkerae subsp. bonkerae</i>
                                             <i>Echinocereus brandegeei</i>
                                             <i>Echinocereus bristolii</i>
                                             <i>Echinocereus caespitosus</i>
                                               <i>Echinocereus caespitosus var. minor</i>
                                               <i>Echinocereus caespitosus var. perbellus</i>
                                               <i>Echinocereus caespitosus var. purpureus</i>
                                             <i>Echinocereus carmenensis</i>
                                             <i>Echinocereus chisoensis</i>
                                                   [Echinocereus chisosensis]
                                                   [Echinocereus reichenbachii var. chisoensis]
                                                   [Echinocereus reichenbachii var. chisosensis]
                                               <i>Echinocereus chisoensis var. chisoensis</i>
                                                     [Echinocereus chisoensis subsp. chisoensis]
                                                     [Echinocereus chisosensis subsp. chisosensis]
                                                     [Echinocereus chisosensis var. chisosensis]
                                               <i>Echinocereus chisoensis var. fobeanus</i>
                                                     [Echinocereus chisosensis subsp. fobeanus]
                                                     [Echinocereus fobeanus]
                                             <i>Echinocereus chloranthus</i>
                                               <i>Echinocereus chloranthus subsp. chloranthus</i>
                                               <i>Echinocereus chloranthus subsp. rhyolithensis</i>
                                               <i>Echinocereus chloranthus var. chloranthus</i>
                                               <i>Echinocereus chloranthus var. cylindricus</i>
                                               <i>Echinocereus chloranthus var. neocapillus</i>
                                             <i>Echinocereus cinerascens</i>
                                                   [Echinocereus chlorophthalmus]
                                                   [Echinocereus cinerascens var. ehrenbergii]
                                                   [Echinocereus glycimorphus]
                                               <i>Echinocereus cinerascens subsp. cinerascens</i>
                                               <i>Echinocereus cinerascens subsp. septentrionalis</i>
                                               <i>Echinocereus cinerascens subsp. tulensis</i>
                                                     [Echinocereus tulensis]
                                               <i>Echinocereus cinerascens var. cinerascens</i>
                                             <i>Echinocereus coccineus</i>
                                                   [Echinocereus aggregatus]
                                                   [Echinocereus coccineus subsp. paucispinus]
                                                   [Echinocereus phoeniceus var. inermis]
                                                   [Echinocereus triglochidiatus subsp. coccineus]
                                                   [Echinocereus triglochidiatus var. paucispinus]
                                                   [Echinocereus triglochidiatus var. toroweapensis]
                                               <i>Echinocereus coccineus coccineus</i>
                                               <i>Echinocereus coccineus subsp. coccineus</i>
                                                     [Cereus roemeri]
                                                     [Echinocereus bakeri]
                                                     [Echinocereus canyonensis]
                                                     [Echinocereus coccineus subsp. roemeri]
                                                     [Echinocereus hexaedrus]
                                                     [Echinocereus neomexicanus]
                                                     [Echinocereus phoeniceus var. phoeniceus]
                                                     [Echinocereus phoeniceus]
                                                     [Echinocereus roemeri]
                                                     [Echinocereus triglochidiatus var. inermis]
                                                     [Echinocereus triglochidiatus var. melanacanthus]
                                                     [Echinocereus triglochidiatus var. octacanthus]
                                               <i>Echinocereus coccineus subsp. rosei</i>
                                               <i>Echinocereus coccineus subsp. santaritensis</i>
                                                     [Echinocereus santaritensis subsp. santaritensis]
                                                     [Echinocereus santaritensis]
                                               <i>Echinocereus coccineus subsp. transpecosensis</i>
                                               <i>Echinocereus coccineus var. arizonicus</i>
                                                     [Echinocereus polyacanthus var. neomexicanus]
                                                     [Echinocereus triglochidiatus var. neomexicanus]
                                               <i>Echinocereus coccineus var. coccineus</i>
                                                     [Coryphantha vivipara var. aggregata]
                                                     [Echinocereus coccineus var. conoideus]
                                                     [Echinocereus coccineus var. inermis]
                                                     [Echinocereus octacanthus]
                                                     [Echinocereus polyacanthus var. rosei]
                                                     [Echinocereus triglochidiatus var. hexaedrus]
                                                     [Mammillaria aggregata]
                                               <i>Echinocereus coccineus var. gurneyi</i>
                                                     [Echinocereus triglochidiatus var. gurneyi]
                                               <i>Echinocereus coccineus var. paucispinus</i>
                                               <i>Echinocereus coccineus var. rosei</i>
                                             <i>Echinocereus conglomeratus</i>
                                             <i>Echinocereus conoideus</i>
                                             <i>Echinocereus dasyacanthus</i>
                                                   [Echinocereus ctenoides]
                                                   [Echinocereus dasyacanthus subsp. dasyacanthus]
                                                   [Echinocereus dasyacanthus subsp. rectispinus]
                                                   [Echinocereus dasyacanthus var. hildmannii]
                                                   [Echinocereus pectinatus var. ctenoides]
                                                   [Echinocereus pectinatus var. dasyacanthus]
                                                   [Echinocereus pectinatus var. neomexicanus]
                                                   [Echinocereus steereae]
                                             <i>Echinocereus dubius</i>
                                             <i>Echinocereus ehrenbergii</i>
                                             <i>Echinocereus engelmannii</i>
                                                   [Echinocereus decumbens]
                                                   [Echinocereus engelmanni]
                                                   [Echinocereus engelmannii var. decumbens]
                                               <i>Echinocereus engelmannii engelmannii</i>
                                               <i>Echinocereus engelmannii subsp. decumbens</i>
                                               <i>Echinocereus engelmannii subsp. engelmannii</i>
                                               <i>Echinocereus engelmannii subsp. llanuraensis</i>
                                                     [Echinocereus nicholii subsp. llanuraensis]
                                               <i>Echinocereus engelmannii var. acicularis</i>
                                                     [Echinocereus engelmannii subsp. acicularis]
                                               <i>Echinocereus engelmannii var. armatus</i>
                                               <i>Echinocereus engelmannii var. chrysocentrus</i>
                                               <i>Echinocereus engelmannii var. engelmannii</i>
                                               <i>Echinocereus engelmannii var. howei</i>
                                               <i>Echinocereus engelmannii var. munzii</i>
                                                     [Echinocereus munzii]
                                               <i>Echinocereus engelmannii var. purpureus</i>
                                               <i>Echinocereus engelmannii var. variegatus</i>
                                                     [Cereus engelmannii var. variegatus]
                                                     [Echinocereus engelmannii subsp. variegatus]
                                             <i>Echinocereus enneacanthus</i>
                                                   [Cereus enneacanthus]
                                                   [Echinocereus sarissophorus]
                                               <i>Echinocereus enneacanthus subsp. brevispinus</i>
                                               <i>Echinocereus enneacanthus subsp. enneacanthus</i>
                                                     [Echinocereus enneacanthus f. intermedius]
                                                     [Echinocereus enneacanthus subsp. carnosus]
                                                     [Echinocereus enneacanthus subsp. intermedius]
                                                     [Echinocereus merkeri]
                                               <i>Echinocereus enneacanthus var. brevispinus</i>
                                               <i>Echinocereus enneacanthus var. carnosus</i>
                                               <i>Echinocereus enneacanthus var. dubius</i>
                                               <i>Echinocereus enneacanthus var. enneacanthus</i>
                                             <i>Echinocereus fasciculatus</i>
                                                   [Echinocereus fasciculatus subsp. boyce-thompsonii]
                                                   [Echinocereus fasciculatus subsp. fasciculatus]
                                                   [Echinocereus fendleri var. fasciculatus]
                                             <i>Echinocereus fendleri</i>
                                               <i>Echinocereus fendleri subsp. fendleri</i>
                                                     [Echinocereus hempelii]
                                                     [Echinocereus kuenzleri]
                                               <i>Echinocereus fendleri subsp. kuenzleri</i>
                                               <i>Echinocereus fendleri subsp. rectispinus</i>
                                                     [Echinocereus fendleri var. retispinus]
                                                     [Echinocereus hempelii subsp. rectispinus]
                                               <i>Echinocereus fendleri var. boyce-thompsonii</i>
                                                     [Echinocereus boyce-thompsonii]
                                                     [Echinocereus fasciculatus var. boyce-thompsonii]
                                               <i>Echinocereus fendleri var. fendleri</i>
                                               <i>Echinocereus fendleri var. kuenzleri</i>
                                                     [Echinocereus fendleri subsp. hempelii]
                                               <i>Echinocereus fendleri var. rectispinus</i>
                                                     [Echinocereus rectispinus]
                                             <i>Echinocereus ferreirianus</i>
                                               <i>Echinocereus ferreirianus subsp. ferreirianus</i>
                                               <i>Echinocereus ferreirianus subsp. lindsayi</i>
                                             <i>Echinocereus fitchii</i>
                                             <i>Echinocereus freudenbergeri</i>
                                             <i>Echinocereus gonacanthus</i>
                                             <i>Echinocereus grandis</i>
                                             <i>Echinocereus klapperi</i>
                                             <i>Echinocereus knippelianus</i>
                                                   [Echinocereus knippelianus var. reyesii]
                                               <i>Echinocereus knippelianus subsp. kruegeri</i>
                                                     [Echinocereus knippelianus var. kruegeri]
                                             <i>Echinocereus laui</i>
                                             <i>Echinocereus ledingii</i>
                                                   [Echinocereus fendleri var. ledingii]
                                             <i>Echinocereus leucanthus</i>
                                                   [Wilcoxia albiflora]
                                             <i>Echinocereus lindsayi</i>
                                                   [Echinocereus ferreirianus var. lindsayi]
                                             <i>Echinocereus llanuraensis</i>
                                             <i>Echinocereus lloydii</i>
                                                   [Echinocereus × lloydii]
                                             <i>Echinocereus longisetus</i>
                                               <i>Echinocereus longisetus subsp. delaetii</i>
                                                     [Cephalocereus delaetii]
                                                     [Echinocereus delaetii]
                                               <i>Echinocereus longisetus subsp. longisetus</i>
                                             <i>Echinocereus luteus</i>
                                             <i>Echinocereus mamillatus</i>
                                             <i>Echinocereus mapimiensis</i>
                                             <i>Echinocereus maritimus</i>
                                                   [Echinocereus hancockii]
                                               <i>Echinocereus maritimus subsp. hancockii</i>
                                               <i>Echinocereus maritimus subsp. maritimus</i>
                                               <i>Echinocereus maritimus var. hancockii</i>
                                               <i>Echinocereus maritimus var. maritimus</i>
                                             <i>Echinocereus matudae</i>
                                             <i>Echinocereus melanocentrus</i>
                                             <i>Echinocereus metornii</i>
                                             <i>Echinocereus milleri</i>
                                             <i>Echinocereus mojavensis</i>
                                                   [Echinocereus triglochidiatus var. mojavensis]
                                             <i>Echinocereus mombergerianus</i>
                                                   [Echinocereus polyacanthus subsp. mombergerianus]
                                             <i>Echinocereus nicholii</i>
                                                   [Echinocereus engelmannii var. nicholii]
                                                   [Echinocereus nicholii subsp. nicholii]
                                             <i>Echinocereus nivosus</i>
                                                   [Echinocereus albatus]
                                             <i>Echinocereus occidentalis</i>
                                               <i>Echinocereus occidentalis ssp. breckwoldtiorum</i>
                                             <i>Echinocereus ortegae</i>
                                               <i>Echinocereus ortegae subsp. koehresianus</i>
                                                     [Echinocereus koehresianus]
                                               <i>Echinocereus ortegae subsp. ortegae</i>
                                             <i>Echinocereus pacificus</i>
                                               <i>Echinocereus pacificus subsp. mombergerianus</i>
                                               <i>Echinocereus pacificus subsp. pacificus</i>
                                             <i>Echinocereus palmeri</i>
                                               <i>Echinocereus palmeri subsp. mazapil</i>
                                               <i>Echinocereus palmeri subsp. palmeri</i>
                                             <i>Echinocereus pamanesii</i>
                                             <i>Echinocereus pamanesiorum</i>
                                               <i>Echinocereus pamanesiorum subsp. bonatzii</i>
                                                     [Echinocereus adustus subsp. bonatzii]
                                                     [Echinocereus bonatzii]
                                               <i>Echinocereus pamanesiorum subsp. pamanesiorum</i>
                                             <i>Echinocereus papillosus</i>
                                               <i>Echinocereus papillosus var. angusticeps</i>
                                                     [Echinocereus angusticeps]
                                                     [Echinocereus berlandieri var. angusticeps]
                                                     [Echinocereus blanckii var. angusticeps]
                                                     [Echinocereus blankii var. angusticeps]
                                               <i>Echinocereus papillosus var. papillosus</i>
                                             <i>Echinocereus parkeri</i>
                                               <i>Echinocereus parkeri subsp. arteagensis</i>
                                               <i>Echinocereus parkeri subsp. gonzalezii</i>
                                               <i>Echinocereus parkeri subsp. mazapilensis</i>
                                               <i>Echinocereus parkeri subsp. parkeri</i>
                                             <i>Echinocereus paucispinus</i>
                                             <i>Echinocereus pectinatus</i>
                                               <i>Echinocereus pectinatus subsp. ctenoides</i>
                                                     [Echinocereus hildmannii]
                                               <i>Echinocereus pectinatus subsp. pectinatus</i>
                                                     [Echinocactus pectinatus]
                                               <i>Echinocereus pectinatus subsp. wenigeri</i>
                                               <i>Echinocereus pectinatus var. minor</i>
                                               <i>Echinocereus pectinatus var. pectinatus</i>
                                               <i>Echinocereus pectinatus var. wenigeri</i>
                                             <i>Echinocereus pentalophus</i>
                                                   [Cereus pentalophus var. radicans]
                                                   [Cereus pentalophus var. simplex]
                                                   [Echinocereus pentalophus subsp. procumbens]
                                               <i>Echinocereus pentalophus subsp. leonensis</i>
                                                     [Echinocereus leonensis]
                                               <i>Echinocereus pentalophus subsp. pentalophus</i>
                                                     [Echinocereus leptacanthus]
                                               <i>Echinocereus pentalophus var. leonensis</i>
                                             <i>Echinocereus perbellus</i>
                                             <i>Echinocereus polyacanthus</i>
                                                   [Echinocereus durangensis]
                                                   [Echinocereus triglochidiatus subsp. polyacanthus]
                                                   [Echinocereus triglochidiatus var. polyacanthus]
                                               <i>Echinocereus polyacanthus subsp. pacificus</i>
                                               <i>Echinocereus polyacanthus subsp. polyacanthus</i>
                                               <i>Echinocereus polyacanthus var. huitcholensis</i>
                                               <i>Echinocereus polyacanthus var. pacificus</i>
                                                     [Echinocereus triglochidiatus var. pacificus]
                                               <i>Echinocereus polyacanthus var. polyacanthus</i>
                                             <i>Echinocereus poselgeri</i>
                                                   [Cereus poselgeri]
                                                   [Cereus tuberosus]
                                                   [Echinocereus kroenleinii]
                                                   [Echinocereus poselgeri subsp. kroenleinii]
                                                   [Echinocereus tamaulipensis subsp. waldeisii]
                                                   [Echinocereus waldeisii]
                                                   [Wilcoxia kroenleinii]
                                                   [Wilcoxia poselgeri]
                                                   [Wilcoxia tamaulipensis]
                                             <i>Echinocereus primolanatus</i>
                                             <i>Echinocereus princeps</i>
                                             <i>Echinocereus procumbens</i>
                                             <i>Echinocereus pseudopectinatus</i>
                                                   [Echinocereus bristolii var. pseudopectinatus]
                                             <i>Echinocereus pulchellus</i>
                                               <i>Echinocereus pulchellus subsp. acanthosetus</i>
                                               <i>Echinocereus pulchellus subsp. pulchellus</i>
                                                     [Echinocereus amoenus]
                                               <i>Echinocereus pulchellus subsp. sharpii</i>
                                               <i>Echinocereus pulchellus subsp. weinbergii</i>
                                                     [Echinocereus weinbergii subsp. weinbergii]
                                                     [Echinocereus weinbergii]
                                             <i>Echinocereus rayonensis</i>
                                             <i>Echinocereus rayonesensis</i>
                                             <i>Echinocereus rebmanii</i>
                                             <i>Echinocereus reichenbachii</i>
                                                   [Cereus pectinatus var. armatus]
                                                   [Echinocereus purpureus]
                                                   [Echinocereus reichenbachii subsp. burrensis]
                                               <i>Echinocereus reichenbachii subsp. albertii</i>
                                                     [Echinocereus fitchii subsp. albertii]
                                               <i>Echinocereus reichenbachii subsp. armatus</i>
                                               <i>Echinocereus reichenbachii subsp. baileyi</i>
                                                     [Echinocereus albispinus]
                                                     [Echinocereus baileyi var. albispinus]
                                                     [Echinocereus baileyi]
                                                     [Echinocereus reichenbachii var. albispinus]
                                                     [Echinocereus reichenbachii var. baileyi]
                                               <i>Echinocereus reichenbachii subsp. caespitosus</i>
                                               <i>Echinocereus reichenbachii subsp. fitchii</i>
                                               <i>Echinocereus reichenbachii subsp. perbellus</i>
                                               <i>Echinocereus reichenbachii subsp. reichenbachii</i>
                                               <i>Echinocereus reichenbachii var. albertii</i>
                                               <i>Echinocereus reichenbachii var. fitchii</i>
                                               <i>Echinocereus reichenbachii var. perbellus</i>
                                               <i>Echinocereus reichenbachii var. reichenbachii</i>
                                             <i>Echinocereus relictus</i>
                                             <i>Echinocereus rigidissimus</i>
                                                   [Cereus pectinatus var. rigidissimus]
                                                   [Echinocereus pectinatus var. rigidissimus]
                                               <i>Echinocereus rigidissimus subsp. rigidissimus</i>
                                               <i>Echinocereus rigidissimus subsp. rubispinus</i>
                                                     [Echinocereus pectinatus var. rubrispinus]
                                               <i>Echinocereus rigidissimus var. rigidissimus</i>
                                               <i>Echinocereus rigidissimus var. rubispinus</i>
                                             <i>Echinocereus robustus</i>
                                             <i>Echinocereus rosei</i>
                                             <i>Echinocereus russanthus</i>
                                                   [Echinocereus chloranthus var. russanthus]
                                                   [Echinocereus viridiflorus var. weedinii]
                                             <i>Echinocereus sanpedroensis</i>
                                             <i>Echinocereus scheeri</i>
                                                   [Cereus scheeri]
                                                   [Echinocereus salm-dyckianus]
                                               <i>Echinocereus scheeri subsp. gentryi</i>
                                                     [Echinocereus gentryi]
                                               <i>Echinocereus scheeri subsp. scheeri</i>
                                               <i>Echinocereus scheeri var. gentryi</i>
                                               <i>Echinocereus scheeri var. obscuriensis</i>
                                               <i>Echinocereus scheeri var. scheeri</i>
                                             <i>Echinocereus schereri</i>
                                             <i>Echinocereus schmollii</i>
                                                   [Cereus schmollii]
                                                   [Wilcoxia schmollii]
                                             <i>Echinocereus sciurus</i>
                                                   [Cereus sciurus]
                                                   [Echinocereus subterraneus]
                                               <i>Echinocereus sciurus subsp. floresii</i>
                                                     [Echinocereus floresii]
                                               <i>Echinocereus sciurus subsp. sciurus</i>
                                             <i>Echinocereus scopulorum</i>
                                             <i>Echinocereus sharpii</i>
                                             <i>Echinocereus spinigemmatus</i>
                                             <i>Echinocereus stolonifer</i>
                                                   [Echinocereus stoloniferus]
                                               <i>Echinocereus stolonifer subsp. stolonifer</i>
                                                     [Echinocereus stoloniferus subsp. stoloniferus]
                                                     [Echinocereus stoloniferus var. stoloniferus]
                                               <i>Echinocereus stolonifer subsp. tayopensis</i>
                                                     [Echinocereus stolonifer var. tayopensis]
                                                     [Echinocereus stoloniferus subsp. tayopensis]
                                                     [Echinocereus stoloniferus var. tayopensis]
                                                     [Echinocereus tayopensis]
                                             <i>Echinocereus stramineus</i>
                                                   [Echinocereus enneacanthus var. stramineus]
                                               <i>Echinocereus stramineus stramineus</i>
                                               <i>Echinocereus stramineus subsp. occidentalis</i>
                                               <i>Echinocereus stramineus subsp. stramineus</i>
                                               <i>Echinocereus stramineus var. occidentalis</i>
                                               <i>Echinocereus stramineus var. stramineus</i>
                                             <i>Echinocereus subinermis</i>
                                               <i>Echinocereus subinermis subsp. ochoterenae</i>
                                                     [Echinocereus ochoterenae]
                                               <i>Echinocereus subinermis subsp. subinermis</i>
                                               <i>Echinocereus subinermis var. luteus</i>
                                               <i>Echinocereus subinermis var. subinermis</i>
                                             <i>Echinocereus tamaulipensis</i>
                                             <i>Echinocereus triglochidiatus</i>
                                                   [Echinocereus coccineus subsp. mojavensis]
                                                   [Echinocereus coccineus var. octacanthus]
                                                   [Echinocereus triglochidiatus subsp. triglochidiatus]
                                                   [Echinocereus triglochidiatus var. gonacanthus]
                                               <i>Echinocereus triglochidiatus var. triglochidiatus</i>
                                                     [Echinocereus kunzei]
                                             <i>Echinocereus viereckii</i>
                                               <i>Echinocereus viereckii subsp. morricalii</i>
                                                     [Echinocereus morricalii]
                                                     [Echinocereus viereckii subsp. huastecensis]
                                                     [Echinocereus viereckii var. morricalii]
                                               <i>Echinocereus viereckii subsp. viereckii</i>
                                             <i>Echinocereus viridiflorus</i>
                                               <i>Echinocereus viridiflorus subsp. chloranthus</i>
                                                     [Echinocereus neocapillus]
                                                     [Echinocereus viridiflorus var. neocapillus]
                                               <i>Echinocereus viridiflorus subsp. correllii</i>
                                               <i>Echinocereus viridiflorus subsp. cylindricus</i>
                                               <i>Echinocereus viridiflorus subsp. davisii</i>
                                               <i>Echinocereus viridiflorus subsp. viridiflorus</i>
                                               <i>Echinocereus viridiflorus var. canus</i>
                                               <i>Echinocereus viridiflorus var. chloranthus</i>
                                               <i>Echinocereus viridiflorus var. correllii</i>
                                               <i>Echinocereus viridiflorus var. cylindricus</i>
                                               <i>Echinocereus viridiflorus var. davisii</i>
                                                     [Echinocereus davisii]
                                               <i>Echinocereus viridiflorus var. russanthus</i>
                                               <i>Echinocereus viridiflorus var. standleyi</i>
                                               <i>Echinocereus viridiflorus var. viridiflorus</i>
                                             <i>Echinocereus websterianus</i>
                                             <i>Echinocereus yavapaiensis</i>
                                             <i>Echinocereus zapalinamensis</i>
                                             <i>Echinocereus × roetteri</i>
                                                   [Echinocereus roetteri var. lloydii]
                                                   [Echinocereus roetteri]
                                             <i>Echinocereus ×neomexicanus</i>
                                     <i>Echinofossulocactus</i>
                                             <i>Echinofossulocactus anfractuosus</i>
                                             <i>Echinofossulocactus dichroacanthus</i>
                                             <i>Echinofossulocactus lexarzai</i>
                                             <i>Echinofossulocactus multicostatus</i>
                                     <i>Echinomastus</i>
                                             <i>Echinomastus erectocentrus</i>
                                                   [Neolloydia erectocentra]
                                                   [Sclerocactus erectocentrus]
                                               <i>Echinomastus erectocentrus subsp. acunensis</i>
                                               <i>Echinomastus erectocentrus subsp. erectocentrus</i>
                                                     [Sclerocactus erectocentrus var. erectocentrus]
                                               <i>Echinomastus erectocentrus var. acunensis</i>
                                                     [Sclerocactus erectocentrus var. acunensis]
                                               <i>Echinomastus erectocentrus var. erectocentrus</i>
                                                     [Neolloydia erectocentra var. erectocentra]
                                             <i>Echinomastus gautii</i>
                                             <i>Echinomastus intertextus</i>
                                                   [Sclerocactus intertextus var. intertextus]
                                               <i>Echinomastus intertextus subsp. intertextus</i>
                                               <i>Echinomastus intertextus var. dasyacanthus</i>
                                               <i>Echinomastus intertextus var. intertextus</i>
                                             <i>Echinomastus mariposensis</i>
                                             <i>Echinomastus unguispinus</i>
                                               <i>Echinomastus unguispinus var. durangensis</i>
                                               <i>Echinomastus unguispinus var. unguispinus</i>
                                             <i>Echinomastus warnockii</i>
                                     <i>Echinopsis</i>
                                           [Echinopsis mieckleyi]
                                           [Echinopsis spinibarbis]
                                           [Echinopsis trichosa]
                                             <i>Echinopsis albispinosa</i>
                                                   [Echinopsis silvestrii]
                                             <i>Echinopsis ancistrophora</i>
                                                   [Echinopsis ancistrophora subsp. ancistrophora]
                                                   [Echinopsis hamatacantha]
                                                   [Echinopsis kratochviliana]
                                                   [Echinopsis polyancistra]
                                                   [Echinopsis subdenudata]
                                                   [Echinopsis subdenudatus]
                                             <i>Echinopsis angelesiae</i>
                                                   [Trichocereus angelesii]
                                             <i>Echinopsis antezanae</i>
                                             <i>Echinopsis arachnacantha</i>
                                                   [Echinopsis ancistrophora subsp. arachnacantha]
                                                   [Echinopsis graciliflora]
                                               <i>Echinopsis arachnacantha subsp. arachnacantha</i>
                                               <i>Echinopsis arachnacantha subsp. densiseta</i>
                                               <i>Echinopsis arachnacantha subsp. sulphurea</i>
                                                     [Echinopsis ancistrophora var. sulphurea]
                                                     [Echinopsis arachnacantha var. sulphurea]
                                               <i>Echinopsis arachnacantha subsp. torrecillasensis</i>
                                             <i>Echinopsis arboricola</i>
                                                   [Trichocereus arboricola]
                                             <i>Echinopsis arebaloi</i>
                                             <i>Echinopsis atacamensis</i>
                                                   [Trichocereus atacamensis]
                                               <i>Echinopsis atacamensis subsp. atacamensis</i>
                                               <i>Echinopsis atacamensis subsp. pasacana</i>
                                                     [Echinopsis rivierei]
                                                     [Pilocereus pasacanus]
                                                     [Trichocereus eremophilus]
                                                     [Trichocereus pasacana]
                                                     [Trichocereus rivierei]
                                             <i>Echinopsis aurantiaca</i>
                                             <i>Echinopsis aurea</i>
                                                   [Echinopsis aurea var. fallax]
                                                   [Hymenorebutia aurea]
                                                   [Lobivia aurea]
                                               <i>Echinopsis aurea subsp. aurea</i>
                                                     [Echinopsis quinesensis]
                                                     [Hymenorebutia quinesensis]
                                                     [Lobivia cylindracea]
                                                     [Lobivia cylindrica]
                                               <i>Echinopsis aurea subsp. fallax</i>
                                               <i>Echinopsis aurea subsp. shaferi</i>
                                                     [Lobivia shaferi]
                                             <i>Echinopsis ayopayana</i>
                                                   [Echinopsis kladiwana]
                                             <i>Echinopsis backebergii</i>
                                                   [Lobivia backebergiana]
                                                   [Lobivia backebergii]
                                               <i>Echinopsis backebergii subsp. backebergii</i>
                                                     [Lobivia backebergii subsp. zecheri]
                                                     [Lobivia backebergii var. zecheri]
                                                     [Lobivia wrightiana var. winteriana]
                                               <i>Echinopsis backebergii subsp. wrightiana</i>
                                                     [Lobivia backebergii subsp. wrightiana]
                                                     [Lobivia backebergii var. winteriana]
                                                     [Lobivia backebergii var. wrightiana]
                                             <i>Echinopsis bertramiana</i>
                                             <i>Echinopsis boedekeriana</i>
                                             <i>Echinopsis bolligeriana</i>
                                             <i>Echinopsis breviflora</i>
                                                   [Lobivia breviflora]
                                             <i>Echinopsis bridgesii</i>
                                               <i>Echinopsis bridgesii subsp. bridgesii</i>
                                               <i>Echinopsis bridgesii subsp. vallegrandensis</i>
                                                     [Echinopsis huotii subsp. huotii]
                                                     [Echinopsis huotii subsp. vallegrandensis]
                                               <i>Echinopsis bridgesii subsp. yungasensis</i>
                                             <i>Echinopsis caineana</i>
                                                   [Lobivia caineana]
                                             <i>Echinopsis calochlora</i>
                                                   [Echinopsis calochlora subsp. calochlora]
                                                   [Echinopsis calochlora subsp. glaetzleana]
                                                   [Echinopsis hammerschmidii]
                                                   [Echinopsis ibicuatensis]
                                             <i>Echinopsis calorubra</i>
                                                   [Echinopsis ancistrophora subsp. cardenasiana]
                                                   [Echinopsis ancistrophora subsp. pojoensis]
                                                   [Echinopsis obrepanda subsp. calorubra]
                                                   [Echinopsis obrepanda var. calorubra]
                                                   [Lobivia aguilarii]
                                                   [Lobivia calorubra]
                                                   [Lobivia cardenasiana]
                                                   [Lobivia pojoensis]
                                             <i>Echinopsis camarguensis</i>
                                                   [Trichocereus camarguensis]
                                             <i>Echinopsis candicans</i>
                                                   [Cereus candicans]
                                                   [Echinopsis courantii]
                                                   [Echinopsis pseudocandicans]
                                                   [Echinopsis purpureopilosa]
                                                   [Trichocereus courantii]
                                                   [Trichocereus neolamprochlorus]
                                                   [Trichocereus pseudocandicans]
                                             <i>Echinopsis caulescens</i>
                                                   [Trichocereus caulescens]
                                             <i>Echinopsis cephalomacrostibas</i>
                                             <i>Echinopsis chacoana</i>
                                             <i>Echinopsis chamaecereus</i>
                                                   [Cereus silvestrii]
                                                   [Chamaecereus silvestrii]
                                             <i>Echinopsis chiloensis</i>
                                                   [Trichocereus chiloensis]
                                               <i>Echinopsis chiloensis subsp. chiloensis</i>
                                               <i>Echinopsis chiloensis subsp. litoralis</i>
                                               <i>Echinopsis chiloensis subsp. skottsbergii</i>
                                             <i>Echinopsis chrysantha</i>
                                                   [Hymenorebutia chrysantha]
                                                   [Lobivia chrysantha]
                                                   [Lobivia polaskiana]
                                             <i>Echinopsis chrysochete</i>
                                                   [Lobivia chrysochete]
                                                   [Lobivia hystrix]
                                             <i>Echinopsis cinnabarina</i>
                                                   [Echinocactus cinnabarinus]
                                                   [Lobivia charcasina]
                                                   [Lobivia cinnabarina subsp. prestoana]
                                                   [Lobivia cinnabarina subsp. taratensis]
                                                   [Lobivia cinnabarina]
                                                   [Lobivia draxleriana]
                                                   [Lobivia prestoana]
                                                   [Lobivia taratensis]
                                                   [Lobivia walterspielii]
                                                   [Lobivia zudanensis]
                                                   [Weingartia jarmilae]
                                             <i>Echinopsis clavata</i>
                                                   [Echinopsis clavatus]
                                                   [Trichocereus clavatus]
                                             <i>Echinopsis cochabambensis</i>
                                             <i>Echinopsis comarapana</i>
                                             <i>Echinopsis conaconensis</i>
                                             <i>Echinopsis coquimbana</i>
                                                   [Cactus coquimbanus]
                                                   [Trichocereus coquimbanus]
                                             <i>Echinopsis cotacajesi</i>
                                             <i>Echinopsis cotacajesii</i>
                                             <i>Echinopsis cuzcoensis</i>
                                                   [Echinopsis knuthiana]
                                                   [Echinopsis schoenii]
                                                   [Echinopsis tarmaensis]
                                                   [Echinopsis tulhuayacensis]
                                                   [Trichocereus cuzcoensis]
                                                   [Trichocereus knuthianus]
                                                   [Trichocereus schoenii]
                                                   [Trichocereus tarmaensis]
                                                   [Trichocereus tulhuayacensis]
                                             <i>Echinopsis densispina</i>
                                                   [Echinopsis scoparia]
                                                   [Hymenorebutia chlorogona]
                                                   [Lobivia haematantha subsp. densispina]
                                                   [Lobivia haematantha var. densispina]
                                                   [Lobivia rebutioides]
                                                   [Lobivia scoparia]
                                             <i>Echinopsis deserticola</i>
                                                   [Cereus deserticola]
                                                   [Trichocereus deserticola]
                                             <i>Echinopsis famatimensis</i>
                                                   [Echinocactus famatimensis]
                                                   [Echinopsis famatinensis]
                                                   [Lobivia famatimensis]
                                             <i>Echinopsis ferox</i>
                                                   [Echinopsis cerdana]
                                                   [Echinopsis ferox subsp. potosina]
                                                   [Echinopsis ferox var. potosina]
                                                   [Echinopsis lecoriensis]
                                                   [Echinopsis longispina]
                                                   [Echinopsis nigra]
                                                   [Echinopsis potosina]
                                                   [Lobivia aureolilacina]
                                                   [Lobivia claeysiana]
                                                   [Lobivia ferox]
                                                   [Lobivia hastifera]
                                                   [Lobivia horrida]
                                                   [Lobivia longispina]
                                                   [Lobivia pachyacantha]
                                                   [Lobivia potosina]
                                                   [Lobivia variispina]
                                                   [Trichocereus orurensis]
                                             <i>Echinopsis formosa</i>
                                                   [Echinocactus formosus]
                                                   [Lobivia formosa]
                                                   [Trichocereus formosus]
                                               <i>Echinopsis formosa subsp. bruchii</i>
                                                     [Echinopsis bruchii]
                                                     [Lobivia bruchii]
                                                     [Lobivia formosa subsp. bruchii]
                                                     [Lobivia formosa subsp. grandis]
                                                     [Lobivia formosa var. bruchii]
                                                     [Lobivia formosa var. grandis]
                                                     [Lobivia grandis]
                                                     [Trichocereus bruchii]
                                                     [Trichocereus grandis]
                                                     [Trichocereus ingens]
                                               <i>Echinopsis formosa subsp. formosa</i>
                                                     [Echinopsis uebelmanniana]
                                               <i>Echinopsis formosa subsp. kieslingii</i>
                                                     [Lobivia kieslingii]
                                               <i>Echinopsis formosa subsp. korethroides</i>
                                                     [Echinopsis korethroides]
                                                     [Trichocereus korethroides]
                                               <i>Echinopsis formosa subsp. randallii</i>
                                                     [Echinopsis randallii]
                                                     [Trichocereus randallii]
                                               <i>Echinopsis formosa subsp. rosarioana</i>
                                                     [Lobivia rosarioana]
                                             <i>Echinopsis glauca</i>
                                                   [Echinopsis uyupampensis]
                                             <i>Echinopsis glaucina</i>
                                             <i>Echinopsis haematantha</i>
                                                   [Echinocactus haematanthus]
                                                   [Echinopsis elongata]
                                                   [Echinopsis hualfinensis]
                                                   [Echinopsis kuehnrichii]
                                                   [Hymenorebutia drijveriana]
                                                   [Hymenorebutia kuehnrichii]
                                                   [Lobivia amblayensis]
                                                   [Lobivia chorillosensis]
                                                   [Lobivia chorrillosensis]
                                                   [Lobivia drijveriana var. astranthema]
                                                   [Lobivia drijveriana]
                                                   [Lobivia elongata]
                                                   [Lobivia haematantha subsp. chorillosensis]
                                                   [Lobivia haematantha subsp. kuehnrichii]
                                                   [Lobivia haematantha var. chorrillosensis]
                                                   [Lobivia haematantha var. kuehnrichii]
                                                   [Lobivia haematantha]
                                                   [Lobivia hualfinensis var. fechseri]
                                                   [Lobivia hualfinensis]
                                                   [Lobivia kuehnrichii]
                                                   [Lobivia mirabunda]
                                             <i>Echinopsis hahniana</i>
                                                   [Harrisia hahniana]
                                                   [Mediocactus hahnianus]
                                             <i>Echinopsis hertrichiana</i>
                                                   [Lobivia allegraiana]
                                                   [Lobivia backebergii subsp. hertrichiana]
                                                   [Lobivia backebergii var. hertrichiana]
                                                   [Lobivia binghamiana]
                                                   [Lobivia echinata]
                                                   [Lobivia hertrichiana]
                                                   [Lobivia huilcanota]
                                                   [Lobivia incaica]
                                                   [Lobivia laui]
                                                   [Lobivia minuta]
                                                   [Lobivia planiceps]
                                                   [Lobivia vilcabambae]
                                                   [Neolloydia laui]
                                                   [Neolobivia echinata]
                                                   [Neolobivia hertrichiana]
                                                   [Neolobivia incaica]
                                                   [Neolobivia minuta]
                                                   [Neolobivia vilcabambae]
                                             <i>Echinopsis huascha</i>
                                                   [Cereus huascha]
                                                   [Echinopsis vatteri]
                                                   [Lobivia andalgalensis]
                                                   [Lobivia huascha]
                                                   [Lobivia purpureominiata]
                                                   [Trichocereus catamarcensis]
                                                   [Trichocereus huascha]
                                               <i>Echinopsis huascha subsp. huascha</i>
                                                     [Echinopsis pecheretiana]
                                                     [Trichocereus vatteri]
                                               <i>Echinopsis huascha subsp. robusta</i>
                                                     [Lobivia huascha var. robusta]
                                             <i>Echinopsis huotii</i>
                                             <i>Echinopsis jajoana</i>
                                                   [Echinopsis sanguiniflora]
                                                   [Lobivia chrysacantha]
                                                   [Lobivia chrysantha subsp. jajoiana]
                                                   [Lobivia chrysantha var. jajoiana]
                                                   [Lobivia duursmaiana]
                                                   [Lobivia jajoiana]
                                                   [Lobivia polycephala]
                                                   [Lobivia sanguiniflora]
                                             <i>Echinopsis klingleriana</i>
                                             <i>Echinopsis lageniformis</i>
                                                   [Cereus lageniformis]
                                                   [Echinopsis scopulicola]
                                                   [Trichocereus bridgesii]
                                                   [Trichocereus scopulicola]
                                             <i>Echinopsis lamprochlora</i>
                                             <i>Echinopsis lateritia</i>
                                                   [Hymenorebutia cintiensis]
                                                   [Hymenorebutia torataensis]
                                                   [Hymenorebutia torreana]
                                                   [Lobivia camataquiensis]
                                                   [Lobivia carminantha]
                                                   [Lobivia cintiensis]
                                                   [Lobivia kupperiana]
                                                   [Lobivia scopulina]
                                             <i>Echinopsis leucantha</i>
                                                   [Echinopsis baldiana]
                                                   [Echinopsis cordobensis]
                                                   [Echinopsis intricatissima]
                                                   [Echinopsis melanopotamica]
                                                   [Echinopsis molesta]
                                                   [Echinopsis spegazziniana]
                                             <i>Echinopsis litoralis</i>
                                             <i>Echinopsis macrogona</i>
                                             <i>Echinopsis mamillosa</i>
                                                   [Echinopsis herbasii]
                                                   [Echinopsis mamillosa subsp. mamillosa]
                                                   [Echinopsis mamillosa subsp. silvatica]
                                                   [Echinopsis pseudomamillosa]
                                                   [Echinopsis pseudomammillosa]
                                                   [Echinopsis ritteri]
                                                   [Echinopsis riviere-de-caraltii]
                                                   [Echinopsis roseo-lilacina]
                                                   [Echinopsis silvatica]
                                             <i>Echinopsis marsoneri</i>
                                                   [Lobivia buiningiana]
                                                   [Lobivia chrysantha subsp. marsoneri]
                                                   [Lobivia chrysantha var. marsoneri]
                                                   [Lobivia glauca]
                                                   [Lobivia haageana]
                                                   [Lobivia iridescens]
                                                   [Lobivia marsoneri]
                                                   [Lobivia muhriae]
                                                   [Lobivia nigrostoma]
                                                   [Lobivia rubescens]
                                                   [Lobivia tuberculosa]
                                                   [Lobivia uitewaaleana]
                                             <i>Echinopsis maximiliana</i>
                                                   [Lobivia cariquinensis]
                                                   [Lobivia charazanensis]
                                                   [Lobivia cruciaureispina]
                                                   [Lobivia hermanniana]
                                                   [Lobivia intermedia]
                                                   [Lobivia miniatiflora]
                                                   [Lobivia pseudocariquinensis]
                                                   [Lobivia sicuaniensis]
                                               <i>Echinopsis maximiliana subsp. caespitosa</i>
                                                     [Echinopsis caespitosa]
                                               <i>Echinopsis maximiliana subsp. maximiliana</i>
                                               <i>Echinopsis maximiliana subsp. westii</i>
                                                     [Lobivia westii]
                                             <i>Echinopsis meyeri</i>
                                             <i>Echinopsis minuana</i>
                                             <i>Echinopsis mirabilis</i>
                                                   [Setiechinopsis mirabilis]
                                             <i>Echinopsis multiplex</i>
                                             <i>Echinopsis obrepanda</i>
                                                   [Echinopsis cajasensis]
                                                   [Echinopsis calliantholilacina]
                                                   [Echinopsis callichroma]
                                                   [Echinopsis carmineiflora]
                                                   [Echinopsis fiebrigii]
                                                   [Echinopsis hystrichoides]
                                                   [Echinopsis mataranensis]
                                                   [Echinopsis obrepanda subsp. obrepanda]
                                                   [Echinopsis obrepanda subsp. tapecuana]
                                                   [Echinopsis tapecuana]
                                                   [Echinopsis toralapana]
                                             <i>Echinopsis oligotricha</i>
                                                   [Lobivia oligotricha]
                                             <i>Echinopsis oxygona</i>
                                                   [Echinopsis adolfofriedrichii]
                                                   [Echinopsis brasiliensis]
                                                   [Echinopsis derenbergii]
                                                   [Echinopsis eyriesii]
                                                   [Echinopsis paraguayensis]
                                                   [Echinopsis tubiflora]
                                             <i>Echinopsis pachanoi</i>
                                                   [Echinopsis chalaensis]
                                                   [Echinopsis santaensis]
                                                   [Trichocereus chalaensis]
                                                   [Trichocereus santaensis]
                                             <i>Echinopsis pampana</i>
                                                   [Lobivia aureosenilis]
                                                   [Lobivia glaucescens]
                                                   [Lobivia mistiensis]
                                                   [Lobivia pampana]
                                             <i>Echinopsis pampariuzii</i>
                                             <i>Echinopsis pamparuizii</i>
                                             <i>Echinopsis pasacana</i>
                                             <i>Echinopsis pentlandii</i>
                                                   [Echinocactus pentlandii]
                                                   [Echinocereus pentlandii]
                                                   [Echinopsis hardeniana]
                                                   [Echinopsis pentlandii subsp. hardeniana]
                                                   [Echinopsis pentlandii subsp. larae]
                                                   [Lobivia aculeata]
                                                   [Lobivia argentea]
                                                   [Lobivia aurantiaca]
                                                   [Lobivia boliviensis]
                                                   [Lobivia brunneo-rosea]
                                                   [Lobivia higginsiana]
                                                   [Lobivia johnsoniana]
                                                   [Lobivia larae]
                                                   [Lobivia lauramarca]
                                                   [Lobivia leucorhodon]
                                                   [Lobivia leucoviolacea]
                                                   [Lobivia multicostata]
                                                   [Lobivia pentlandii]
                                                   [Lobivia raphidacantha]
                                                   [Lobivia schneideriana]
                                                   [Lobivia titicacensis]
                                                   [Lobivia varians]
                                                   [Lobivia wegheiana]
                                             <i>Echinopsis pereziensis</i>
                                             <i>Echinopsis peruviana</i>
                                                   [Echinopsis peruviana subsp. peruviana]
                                                   [Echinopsis peruviana subsp. puquiensis]
                                                   [Echinopsis puquiensis]
                                                   [Trichocereus puquiensis]
                                                   [Trichocereus tacnaensis]
                                                   [Trichocereus torataensis]
                                             <i>Echinopsis pojoensis</i>
                                             <i>Echinopsis pugionacantha</i>
                                                   [Lobivia salitrensis]
                                               <i>Echinopsis pugionacantha subsp. haemantha</i>
                                                     [Lobivia salitrensis var. flexuosa]
                                               <i>Echinopsis pugionacantha subsp. pugionacantha</i>
                                               <i>Echinopsis pugionacantha subsp. rossii</i>
                                             <i>Echinopsis quadratiumbonata</i>
                                                   [Echinopsis quadratiumbonatus]
                                                   [Trichocereus quadratiumbonatus]
                                             <i>Echinopsis rhodacantha</i>
                                             <i>Echinopsis rhodotricha</i>
                                               <i>Echinopsis rhodotricha subsp. chacoana</i>
                                               <i>Echinopsis rhodotricha subsp. rhodotricha</i>
                                             <i>Echinopsis rojasii</i>
                                                   [Echinopsis boyuibensis]
                                                   [Echinopsis coronata]
                                             <i>Echinopsis rossii</i>
                                             <i>Echinopsis rowleyi</i>
                                                   [Echinopsis crassicaulis]
                                                   [Lobivia crassicaulis]
                                                   [Lobivia grandiflora]
                                                   [Trichocereus rowleyi]
                                             <i>Echinopsis saltensis</i>
                                               <i>Echinopsis saltensis subsp. saltensis</i>
                                               <i>Echinopsis saltensis subsp. schreiteri</i>
                                             <i>Echinopsis schelhasii</i>
                                             <i>Echinopsis schickendantzii</i>
                                                   [Cereus schickendantzii]
                                                   [Echinopsis fabrisii]
                                                   [Echinopsis friedrichii]
                                                   [Echinopsis smrziana]
                                                   [Trichocereus fabrisii]
                                                   [Trichocereus manguinii]
                                                   [Trichocereus narvaecensis]
                                                   [Trichocereus shaferi]
                                                   [Trichocereus smrzianus]
                                                   [Trichocereus tenuispinus]
                                                   [Trichocereus volcanensis]
                                             <i>Echinopsis schieliana</i>
                                                   [Lobivia backebergii subsp. schieliana]
                                                   [Lobivia backebergii var. schieliana]
                                                   [Lobivia quiabayensis]
                                                   [Lobivia schieliana]
                                             <i>Echinopsis schreiteri</i>
                                             <i>Echinopsis shaferi</i>
                                             <i>Echinopsis skottsbergii</i>
                                             <i>Echinopsis spachiana</i>
                                             <i>Echinopsis spiniflora</i>
                                                   [Acanthocalycium peitscherianum]
                                                   [Acanthocalycium violaceum]
                                                   [Echinocactus spiniflorus]
                                             <i>Echinopsis stilowiana</i>
                                                   [Lobivia stilowiana]
                                             <i>Echinopsis stollenwerkiana</i>
                                             <i>Echinopsis strigosa</i>
                                                   [Trichocereus strigosus]
                                             <i>Echinopsis sucrensis</i>
                                             <i>Echinopsis tacaquirensis</i>
                                                   [Cereus tacaquirensis]
                                                   [Echinopsis tacaquirensis subsp. tacaquirensis]
                                                   [Echinopsis tacaquirensis subsp. taquimbalensis]
                                                   [Echinopsis taquimbalensis]
                                                   [Trichocereus taquimbalensis]
                                             <i>Echinopsis tarijensis</i>
                                                   [Cereus tarijensis]
                                                   [Echinopsis poco]
                                                   [Lobivia formosa subsp. tarijensis]
                                                   [Trichocereus antezanae]
                                               <i>Echinopsis tarijensis subsp. bertramiana</i>
                                                     [Echinopsis tarijensis subsp. herzogianus]
                                                     [Echinopsis tarijensis subsp. totorensis]
                                               <i>Echinopsis tarijensis subsp. tarijensis</i>
                                             <i>Echinopsis tegeleriana</i>
                                                   [Lobivia akersii]
                                                   [Lobivia incuiensis]
                                                   [Lobivia tegeleriana]
                                             <i>Echinopsis terscheckii</i>
                                                   [Cereus terscheckii]
                                             <i>Echinopsis thelegona</i>
                                                   [Cereus thelegonus]
                                             <i>Echinopsis thelegonoides</i>
                                                   [Cereus thelegonoides]
                                                   [Echinopsis rubinghiana]
                                                   [Trichocereus rubinghianus]
                                                   [Trichocereus thelegonoides]
                                             <i>Echinopsis thionantha</i>
                                                   [Acanthocalycium brevispinum]
                                                   [Acanthocalycium catamarcense]
                                                   [Acanthocalycium chionanthum]
                                                   [Acanthocalycium griseum]
                                                   [Echinocactus thionanthus]
                                                   [Echinopsis brevispina]
                                                   [Lobivia chionanthus]
                                                   [Lobivia thionantha]
                                               <i>Echinopsis thionantha subsp. ferrarii</i>
                                               <i>Echinopsis thionantha subsp. glauca</i>
                                               <i>Echinopsis thionantha subsp. thionantha</i>
                                             <i>Echinopsis tiegeliana</i>
                                                   [Hymenorebutia pusilla]
                                                   [Hymenorebutia tiegeliana]
                                                   [Lobivia fricii]
                                                   [Lobivia peclardiana var. albiflora]
                                                   [Lobivia peclardiana]
                                                   [Lobivia pusilla]
                                                   [Lobivia tiegeliana]
                                                   [Mediolobivia hirsutissima]
                                             <i>Echinopsis torrecillasensis</i>
                                             <i>Echinopsis tunariensis</i>
                                                   [Echinopsis taratensis]
                                                   [Trichocereus taratensis]
                                                   [Trichocereus tunariensis]
                                             <i>Echinopsis turbinata</i>
                                             <i>Echinopsis vallegrandensis</i>
                                             <i>Echinopsis vasquezii</i>
                                                   [Trichocereus vasquezii]
                                             <i>Echinopsis volliana</i>
                                                   [Trichocereus vollianus]
                                             <i>Echinopsis walteri</i>
                                                   [Lobivia walteri]
                                             <i>Echinopsis werdermanniana</i>
                                                   [Echinopsis escayachensis]
                                                   [Echinopsis werdermannii]
                                                   [Trichocereus escayachensis]
                                                   [Trichocereus werdermannianus]
                                             <i>Echinopsis x cabrerae</i>
                                             <i>Echinopsis yungasensis</i>
                                             <i>Echinopsis yuquina</i>
                                                   [Lobivia rauschii]
                                     <i>Emorycactus</i>
                                             <i>Emorycactus xeranthemoides</i>
                                     <i>Encephalocarpus</i>
                                             <i>Encephalocarpus strobiliformis</i>
                                     <i>Epiphyllum</i>
                                           [Epiphyllum floribundum]
                                             <i>Epiphyllum ackermanii</i>
                                             <i>Epiphyllum anguliger</i>
                                                   [Epiphyllum darrahii]
                                             <i>Epiphyllum baueri</i>
                                             <i>Epiphyllum cartagense</i>
                                                   [Phyllocactus cartagensis]
                                             <i>Epiphyllum costaricense</i>
                                             <i>Epiphyllum crenatum</i>
                                                   [Phyllocactus crenatus]
                                               <i>Epiphyllum crenatum subsp. crenatum</i>
                                               <i>Epiphyllum crenatum subsp. kimnachii</i>
                                             <i>Epiphyllum grandilobum</i>
                                                   [Epiphyllum gigas]
                                                   [Phyllocactus grandilobus]
                                             <i>Epiphyllum hookeri</i>
                                                   [Cereus hookeri]
                                                   [Cereus marginatus]
                                               <i>Epiphyllum hookeri hookeri</i>
                                               <i>Epiphyllum hookeri subsp. columbiense</i>
                                                     [Epiphyllum columbiense]
                                                     [Epiphyllum phyllanthus var. columbiense]
                                                     [Phyllocactus phyllanthus var. columbiensis]
                                               <i>Epiphyllum hookeri subsp. guatemalense</i>
                                                     [Epiphyllum guatemalense]
                                               <i>Epiphyllum hookeri subsp. hookeri</i>
                                                     [Epiphyllum stenopetalum]
                                                     [Phyllocactus stenopetalus]
                                               <i>Epiphyllum hookeri subsp. pittieri</i>
                                                     [Epiphyllum pittieri]
                                                     [Phyllocactus pittieri]
                                             <i>Epiphyllum laui</i>
                                             <i>Epiphyllum lepidocarpum</i>
                                                   [Phyllocactus lepidocarpus]
                                             <i>Epiphyllum macrocarpum</i>
                                             <i>Epiphyllum macropterum</i>
                                             <i>Epiphyllum oxypetalum</i>
                                                   [Epiphyllum acuminatum]
                                                   [Epiphyllum latifrons]
                                             <i>Epiphyllum phyllanthus</i>
                                               <i>Epiphyllum phyllanthus subsp. phyllanthus</i>
                                               <i>Epiphyllum phyllanthus subsp. rubrocoronatum</i>
                                                     [Epiphyllum phyllanthus var. rubrocoronatum]
                                                     [Epiphyllum rubrocoronatum]
                                                     [Epiphyllum trimetrale]
                                               <i>Epiphyllum phyllanthus var. hookeri</i>
                                               <i>Epiphyllum phyllanthus var. phyllanthus</i>
                                             <i>Epiphyllum pumilum</i>
                                                   [Epiphyllum caudatum]
                                             <i>Epiphyllum strictum</i>
                                             <i>Epiphyllum thomasianum</i>
                                                   [Phyllocactus thomasianus]
                                               <i>Epiphyllum thomasianum subsp. costaricense</i>
                                               <i>Epiphyllum thomasianum subsp. thomasianum</i>
                                               <i>Epiphyllum thomasianum var. thomasianum</i>
                                     <i>Epithelantha</i>
                                             <i>Epithelantha bokei</i>
                                             <i>Epithelantha cryptica</i>
                                             <i>Epithelantha micromeris</i>
                                                   [Epithelantha densispina]
                                                   [Epithelantha greggii]
                                                   [Epithelantha micromeris subsp. polycephala]
                                                   [Epithelantha micromeris var. pachyrhiza]
                                                   [Epithelantha micromeris var. polycephala]
                                                   [Epithelantha pachyrhiza]
                                                   [Epithelantha petri]
                                                   [Epithelantha petrii]
                                                   [Epithelantha polycephala]
                                                   [Epithelantha rufispina]
                                                   [Mammillaria micromeris var. greggii]
                                                   [Mammillaria micromeris var. unguispina]
                                               <i>Epithelantha micromeris subsp. bokei</i>
                                               <i>Epithelantha micromeris subsp. greggii</i>
                                                     [Epithelantha micromeris var. greggii]
                                               <i>Epithelantha micromeris subsp. micromeris</i>
                                               <i>Epithelantha micromeris subsp. pachyrhiza</i>
                                               <i>Epithelantha micromeris subsp. unguispina</i>
                                               <i>Epithelantha micromeris var. bokei</i>
                                               <i>Epithelantha micromeris var. micromeris</i>
                                                     [Mammillaria micromeris]
                                             <i>Epithelantha spinosior</i>
                                     <i>Erdisia</i>
                                     <i>Eriocereus</i>
                                             <i>Eriocereus spinosissimus</i>
                                     <i>Eriosyce</i>
                                             <i>Eriosyce armata</i>
                                                   [Echinocactus horridus]
                                             <i>Eriosyce aspillagae</i>
                                                   [Echinocactus aspillagae]
                                                   [Eriosyce aspillagae subsp. maechlerorum]
                                                   [Neoporteria aspillagai]
                                                   [Pyrrhocactus aspillagae]
                                             <i>Eriosyce aurata</i>
                                                   [Echinocactus sandillon]
                                                   [Eriosyce algarrobensis]
                                                   [Eriosyce ceratistes]
                                                   [Eriosyce ihotzkyanae]
                                                   [Eriosyce lapampaensis]
                                                   [Eriosyce sandillon]
                                                   [Eriosyce spinibarbis]
                                             <i>Eriosyce bulbocalyx</i>
                                                   [Echinocactus bulbocalyx]
                                                   [Neoporteria bulbocalyx]
                                                   [Neoporteria dubia]
                                                   [Pyrrhocactus bulbocalyx]
                                                   [Pyrrhocactus dubius]
                                             <i>Eriosyce calderana</i>
                                                   [Neoporteria calderiana]
                                                   [Neoporteria pilispina]
                                                   [Pyrrhocactus calderianus]
                                                   [Pyrrhocactus pilispinus]
                                                   [Pyrrhocactus pulchellus]
                                             <i>Eriosyce chilensis</i>
                                                   [Echinocactus chilensis]
                                                   [Neoporteria chilensis]
                                                   [Pyrrhocactus chilensis]
                                                   [Pyrrhocactus krausii]
                                               <i>Eriosyce chilensis var. albidiflora</i>
                                             <i>Eriosyce confinis</i>
                                                   [Neoporteria confinis]
                                                   [Pyrrhocactus confinis]
                                             <i>Eriosyce crispa</i>
                                                   [Neoporteria crispa]
                                                   [Pyrrhocactus crispus]
                                               <i>Eriosyce crispa subsp. atroviridis</i>
                                               <i>Eriosyce crispa subsp. crispa</i>
                                               <i>Eriosyce crispa subsp. totoralensis</i>
                                                     [Neoporteria totoralensis]
                                                     [Pyrrhocactus totoralensis]
                                               <i>Eriosyce crispa var. carrizalensis</i>
                                               <i>Eriosyce crispa var. huascensis</i>
                                               <i>Eriosyce crispa var. totoralensis</i>
                                             <i>Eriosyce curvispina</i>
                                                   [Cactus curvispinus]
                                                   [Echinocactus curvispinus]
                                                   [Eriosyce curvispina var. robusta]
                                                   [Malacocarpus curvispinus]
                                                   [Neoporteria curvispina]
                                                   [Pyrrhocactus curvispinus]
                                               <i>Eriosyce curvispina subsp. armata</i>
                                                     [Neoporteria armata]
                                                     [Neoporteria choapensis]
                                                     [Neoporteria nigricans]
                                                     [Neoporteria tuberisulcata]
                                                     [Pyrrhocactus armatus]
                                                     [Pyrrhocactus choapensis]
                                                     [Pyrrhocactus limariensis]
                                               <i>Eriosyce curvispina subsp. curvispina</i>
                                                     [Neoporteria horrida]
                                                     [Pyrrhocactus andicola]
                                                     [Pyrrhocactus coliguayensis]
                                                     [Pyrrhocactus grandiflorus]
                                                     [Pyrrhocactus horridus]
                                                     [Pyrrhocactus odoriflorus]
                                                     [Pyrrhocactus pamaensis]
                                               <i>Eriosyce curvispina subsp. marksiana</i>
                                                     [Neoporteria marksianus]
                                                     [Pyrrhocactus lissocarpus]
                                                     [Pyrrhocactus marksianus]
                                                     [Pyrrhocactus truncatipetalus]
                                               <i>Eriosyce curvispina var. armata</i>
                                               <i>Eriosyce curvispina var. curvispina</i>
                                               <i>Eriosyce curvispina var. mutabilis</i>
                                               <i>Eriosyce curvispina var. tuberisulcata</i>
                                             <i>Eriosyce engleri</i>
                                             <i>Eriosyce eriosyzoides</i>
                                                   [Neoporteria eriosyzoides]
                                                   [Pyrrhocactus eriosyzoides]
                                               <i>Eriosyce eriosyzoides subsp. atroviridis</i>
                                               <i>Eriosyce eriosyzoides subsp. eriosyzoides</i>
                                             <i>Eriosyce esmeraldana</i>
                                                   [Neoporteria esmeraldana]
                                             <i>Eriosyce garaventae</i>
                                                   [Neoporteria subaiana]
                                                   [Pyrrhocactus garaventai]
                                                   [Pyrrhocactus subaianus]
                                             <i>Eriosyce heinrichiana</i>
                                                   [Neoporteria chorosensis]
                                                   [Neoporteria deherdtiana]
                                                   [Neoporteria dimorpha]
                                                   [Neoporteria intermedia]
                                                   [Neoporteria jussieui]
                                                   [Neoporteria ritteri]
                                                   [Neoporteria setosiflora]
                                                   [Pyrrhocactus chaniarensis]
                                                   [Pyrrhocactus chorosensis]
                                                   [Pyrrhocactus deherdtianus]
                                                   [Pyrrhocactus dimorphus]
                                                   [Pyrrhocactus heinrichianus]
                                                   [Pyrrhocactus intermedius]
                                                   [Pyrrhocactus jussieui]
                                                   [Pyrrhocactus setosiflorus]
                                                   [Pyrrhocactus trapichensis]
                                                   [Pyrrhocactus wagenknechtii]
                                               <i>Eriosyce heinrichiana subsp. heinrichiana</i>
                                               <i>Eriosyce heinrichiana subsp. intermedia</i>
                                               <i>Eriosyce heinrichiana subsp. simulans</i>
                                               <i>Eriosyce heinrichiana var. setosiflora</i>
                                             <i>Eriosyce iquiquensis</i>
                                                   [Eriosyce caligophila]
                                                   [Eriosyce recondita subsp. iquiquensis]
                                                   [Neoporteria aricensis]
                                                   [Neoporteria iquiquensis]
                                                   [Neoporteria residua]
                                                   [Pyrrhocactus aricensis]
                                                   [Pyrrhocactus floribundus]
                                                   [Pyrrhocactus iquiquensis]
                                                   [Pyrrhocactus residuus]
                                                   [Pyrrhocactus saxifragus]
                                             <i>Eriosyce islayensis</i>
                                                   [Islaya islayensis]
                                                   [Neoporteria islayensis]
                                               <i>Eriosyce islayensis subsp. grandis</i>
                                                     [Islaya grandis]
                                               <i>Eriosyce islayensis subsp. islayensis</i>
                                                     [Islaya bicolor]
                                                     [Islaya brevicylindrica]
                                                     [Islaya copiapoides]
                                                     [Islaya divaricatiflora]
                                                     [Islaya grandiflorens]
                                                     [Islaya islayensis var. minor]
                                                     [Islaya krainziana]
                                                     [Islaya maritima]
                                                     [Islaya minor]
                                                     [Islaya minuscula]
                                                     [Islaya molendensis]
                                                     [Islaya paucispinosa]
                                                     [Islaya unguispina]
                                                     [Neoporteria bicolor]
                                                     [Neoporteria krainziana]
                                               <i>Eriosyce islayensis subsp. omasensis</i>
                                                     [Eriosyce omasensis]
                                                     [Islaya omasensis]
                                             <i>Eriosyce krausii</i>
                                             <i>Eriosyce kunzei</i>
                                                   [Neoporteria nidus]
                                               <i>Eriosyce kunzei var. kunzei</i>
                                               <i>Eriosyce kunzei var. transitensis</i>
                                             <i>Eriosyce laui</i>
                                                   [Islaya laui]
                                             <i>Eriosyce limariensis</i>
                                             <i>Eriosyce marksiana</i>
                                               <i>Eriosyce marksiana var. lissocarpa</i>
                                               <i>Eriosyce marksiana var. marksiana</i>
                                             <i>Eriosyce megliolii</i>
                                                   [Neoporteria megliolii]
                                                   [Pyrrhocactus megliolii]
                                             <i>Eriosyce napina</i>
                                                   [Neoporteria napina]
                                               <i>Eriosyce napina subsp. aerocarpa</i>
                                                     [Eriosyce aerocarpa]
                                               <i>Eriosyce napina subsp. glabrescens</i>
                                               <i>Eriosyce napina subsp. lembckei</i>
                                                     [Eriosyce napina subsp. duripulpa]
                                               <i>Eriosyce napina subsp. napina</i>
                                               <i>Eriosyce napina subsp. tenebrica</i>
                                               <i>Eriosyce napina var. duripulpa</i>
                                             <i>Eriosyce occulta</i>
                                             <i>Eriosyce odieri</i>
                                                   [Neoporteria odieri]
                                                   [Neoporteria reichei]
                                                   [Neoporteria reichii]
                                               <i>Eriosyce odieri subsp. fulva</i>
                                               <i>Eriosyce odieri subsp. glabrescens</i>
                                               <i>Eriosyce odieri subsp. krausii</i>
                                               <i>Eriosyce odieri subsp. odieri</i>
                                                     [Neoporteria monte-amargensis]
                                               <i>Eriosyce odieri var. monte-amargensis</i>
                                             <i>Eriosyce paucicostata</i>
                                                   [Neoporteria paucicostata]
                                                   [Pyrrhocactus paucicostatus]
                                               <i>Eriosyce paucicostata subsp. echinus</i>
                                               <i>Eriosyce paucicostata subsp. floccosa</i>
                                               <i>Eriosyce paucicostata subsp. paucicostata</i>
                                             <i>Eriosyce pygmaea</i>
                                                   [Eriosyce taltalensis var. pygmaea]
                                             <i>Eriosyce recondita</i>
                                                   [Eriosyce recondita subsp. recondita]
                                                   [Neoporteria recondita]
                                                   [Pyrrhocactus reconditus]
                                                   [Pyrrhocactus vexatus]
                                             <i>Eriosyce rodentiophila</i>
                                                   [Eriosyce megacarpa]
                                             <i>Eriosyce senilis</i>
                                                   [Echinocactus senilis]
                                                   [Neoporteria senilis]
                                               <i>Eriosyce senilis subsp. coimasensis</i>
                                                     [Neoporteria coimasensis]
                                                     [Neoporteria robusta]
                                               <i>Eriosyce senilis subsp. senilis</i>
                                                     [Eriosyce senilis subsp. elquiensis]
                                                     [Neoporteria gerocephala]
                                                     [Neoporteria multicolor]
                                             <i>Eriosyce simulans</i>
                                                   [Neoporteria simulans]
                                             <i>Eriosyce sociabilis</i>
                                                   [Neoporteria sociabilis]
                                             <i>Eriosyce spinosior</i>
                                             <i>Eriosyce strausiana</i>
                                                   [Neoporteria strausiana]
                                                   [Pyrrhocactus strausianus]
                                               <i>Eriosyce strausiana subsp. pachacoensis</i>
                                                     [Pyrrhocactus pachacoensis]
                                               <i>Eriosyce strausiana subsp. strausiana</i>
                                                     [Eriosyce andreaeana]
                                                     [Neoporteria andreaeana]
                                                     [Neoporteria backebergii]
                                                     [Neoporteria sanjuanensis]
                                                     [Neoporteria setiflora]
                                                     [Neoporteria volliana]
                                                     [Pyrrhocactus atrospinosus]
                                                     [Pyrrhocactus platyacanthus]
                                                     [Pyrrhocactus sanjuanensis]
                                                     [Pyrrhocactus setiflorus]
                                                     [Pyrrhocactus vollianus]
                                             <i>Eriosyce subgibbosa</i>
                                                   [Eriosyce subgibbosa var. castanea]
                                                   [Neoporteria subgibbosa]
                                               <i>Eriosyce subgibbosa subsp. clavata</i>
                                                     [Neoporteria clavata]
                                               <i>Eriosyce subgibbosa subsp. subgibbosa</i>
                                                     [Neoporteria castanea]
                                                     [Neoporteria castaneoides]
                                                     [Neoporteria heteracantha]
                                                     [Neoporteria litoralis]
                                                     [Neoporteria microsperma]
                                                     [Neoporteria subcylindrica]
                                               <i>Eriosyce subgibbosa subsp. vallenarensis</i>
                                               <i>Eriosyce subgibbosa subsp. wagenknechtii</i>
                                                     [Eriosyce subgibbosa var. wagenknechtii]
                                                     [Neoporteria wagenknechtii]
                                               <i>Eriosyce subgibbosa var. litoralis</i>
                                               <i>Eriosyce subgibbosa var. nigrihorrida</i>
                                               <i>Eriosyce subgibbosa var. subgibbosa</i>
                                             <i>Eriosyce taltalensis</i>
                                                   [Neoporteria taltalensis]
                                                   [Pyrrhocactus taltalensis]
                                               <i>Eriosyce taltalensis subsp. echinus</i>
                                               <i>Eriosyce taltalensis subsp. paucicostata</i>
                                               <i>Eriosyce taltalensis subsp. pilispina</i>
                                               <i>Eriosyce taltalensis subsp. pygmaea</i>
                                                     [Neoporteria scoparia]
                                                     [Pyrrhocactus gracilis]
                                                     [Pyrrhocactus pygmaeus]
                                                     [Pyrrhocactus scoparius]
                                                     [Pyrrhocactus transiens]
                                               <i>Eriosyce taltalensis subsp. taltalensis</i>
                                                     [Neoporteria rupicola]
                                                     [Pyrrhocactus rupicola]
                                                     [Pyrrhocactus tenuis]
                                             <i>Eriosyce tenebrica</i>
                                             <i>Eriosyce umadeave</i>
                                                   [Neoporteria umadeave]
                                                   [Pyrrhocactus umadeave]
                                             <i>Eriosyce villicumensis</i>
                                                   [Eriosyce vertongenii]
                                                   [Neoporteria melanacantha]
                                                   [Neoporteria villicumensis]
                                                   [Pyrrhocactus melanacanthus]
                                                   [Pyrrhocactus vertongenii]
                                                   [Pyrrhocactus villicumensis]
                                             <i>Eriosyce villosa</i>
                                                   [Neoporteria atrispinosa]
                                                   [Neoporteria cephalophora]
                                                   [Neoporteria polyraphis]
                                                   [Neoporteria villosa]
                                     <i>Escobaria</i>
                                             <i>Escobaria albicolumnaria</i>
                                                   [Coryphantha albicolumnaria]
                                                   [Mammillaria albicolumnaria]
                                             <i>Escobaria bella</i>
                                             <i>Escobaria chaffeyi</i>
                                                   [Escobaria dasyacantha subsp. chaffeyi]
                                                   [Escobaria dasyacantha var. chaffeyi]
                                             <i>Escobaria chihuahuensis</i>
                                                   [Echinocactus strobiliformis]
                                                   [Mammillaria strobiliformis]
                                               <i>Escobaria chihuahuensis subsp. chihuahuensis</i>
                                               <i>Escobaria chihuahuensis subsp. henricksonii</i>
                                                     [Coryphantha henricksonii]
                                                     [Escobaria henricksonii]
                                             <i>Escobaria chlorantha</i>
                                             <i>Escobaria cubensis</i>
                                                   [Coryphantha cubensis]
                                             <i>Escobaria dasyacantha</i>
                                                   [Coryphantha dasyacantha]
                                                   [Coryphantha varicolor]
                                                   [Escobaria dasyacantha subsp. dasyacantha]
                                                   [Escobaria dasyacantha var. dasyacantha]
                                             <i>Escobaria deserti</i>
                                             <i>Escobaria emskoetteriana</i>
                                                   [Coryphantha emskoetteriana]
                                                   [Escobaria muehlbaueriana]
                                                   [Mammillaria emskoetteriana]
                                             <i>Escobaria guadalupensis</i>
                                             <i>Escobaria laredoi</i>
                                                   [Escobaria rigida]
                                             <i>Escobaria leei</i>
                                                   [Escobaria sneedii subsp. leei]
                                                   [Escobaria sneedii var. leei]
                                             <i>Escobaria lloydii</i>
                                                   [Coryphantha lloydii]
                                             <i>Escobaria missouriensis</i>
                                                   [Coryphantha missouriensis var. caespitosa]
                                                   [Coryphantha missouriensis var. marstonii]
                                                   [Coryphantha missouriensis var. missouriensis]
                                                   [Coryphantha missouriensis var. robustior]
                                                   [Coryphantha missouriensis]
                                                   [Coryphantha similis]
                                                   [Escobaria missouriensis subsp. missouriensis]
                                                   [Escobaria missouriensis subsp. navajoensis]
                                                   [Escobaria missouriensis var. caespitosa]
                                                   [Escobaria missouriensis var. marstonii]
                                                   [Escobaria missouriensis var. missouriensis]
                                                   [Escobaria missouriensis var. robustior]
                                                   [Escobaria missouriensis var. similis]
                                                   [Mammillaria missouriensis]
                                                   [Mammillaria roseiflora]
                                                   [Mammillaria similis var. robustior]
                                                   [Mammillaria similis]
                                                   [Neobesseya missouriensis]
                                                   [Neobesseya wissmannii]
                                                   [Neomammillaria similis]
                                               <i>Escobaria missouriensis subsp. asperispina</i>
                                                     [Coryphantha asperispina]
                                                     [Escobaria asperispina]
                                                     [Neobesseya asperispina]
                                             <i>Escobaria roseana</i>
                                               <i>Escobaria roseana subsp. galeanensis</i>
                                               <i>Escobaria roseana subsp. roseana</i>
                                             <i>Escobaria runyonii</i>
                                             <i>Escobaria sneedii</i>
                                                   [Coryphantha organensis]
                                                   [Coryphantha sneedii var. albicolumnaria]
                                                   [Coryphantha sneedii var. guadalupensis]
                                                   [Coryphantha sneedii]
                                                   [Coryphantha strobiliformis var. durispina]
                                                   [Coryphantha strobiliformis var. orcuttii]
                                                   [Escobaria orcuttii var. koenigii]
                                                   [Escobaria orcuttii var. macraxima]
                                                   [Escobaria orcuttii]
                                                   [Escobaria organensis]
                                                   [Escobaria sandbergii]
                                                   [Escobaria sneedii subsp. sneedii]
                                                   [Escobaria sneedii var. sneedii]
                                                   [Escobaria villardii]
                                                   [Neolloydia orcuttii]
                                               <i>Escobaria sneedii subsp. orcuttii</i>
                                                     [Coryphantha sneedii var. orcuttii]
                                             <i>Escobaria tuberculosa</i>
                                               <i>Escobaria tuberculosa var. tuberculosa</i>
                                             <i>Escobaria zilziana</i>
                                                   [Coryphantha zilziana]
                                     <i>Escontria</i>
                                             <i>Escontria chiotilla</i>
                                                   [Myrtillocactus chiotilla]
                                     <i>Espostoa</i>
                                             <i>Espostoa baumannii</i>
                                             <i>Espostoa blossfeldiorum</i>
                                                   [Thrixanthocereus blossfeldiorum]
                                                   [Thrixanthocereus longispinus]
                                             <i>Espostoa calva</i>
                                             <i>Espostoa frutescens</i>
                                             <i>Espostoa guentheri</i>
                                                   [Cephalocereus guentheri]
                                             <i>Espostoa hylaea</i>
                                             <i>Espostoa lanata</i>
                                               <i>Espostoa lanata subsp. huanucoensis</i>
                                                     [Espostoa huanucoensis]
                                               <i>Espostoa lanata subsp. lanata</i>
                                                     [Espostoa laticornua]
                                                     [Espostoa procera]
                                                     [Espostoa ritteri]
                                               <i>Espostoa lanata subsp. lanianuligera</i>
                                                     [Espostoa lanianuligera]
                                               <i>Espostoa lanata subsp. ruficeps</i>
                                                     [Espostoa ruficeps]
                                             <i>Espostoa melanostele</i>
                                               <i>Espostoa melanostele subsp. melanostele</i>
                                               <i>Espostoa melanostele subsp. nana</i>
                                                     [Espostoa nana]
                                             <i>Espostoa mirabilis</i>
                                             <i>Espostoa senilis</i>
                                                   [Thrixanthocereus senilis]
                                             <i>Espostoa superba</i>
                                             <i>Espostoa utcubambensis</i>
                                     <i>Espostoopsis</i>
                                             <i>Espostoopsis dybowskii</i>
                                     <i>Eulychnia</i>
                                             <i>Eulychnia acida</i>
                                             <i>Eulychnia aricensis</i>
                                             <i>Eulychnia breviflora</i>
                                                   [Eulychnia barquitensis]
                                                   [Eulychnia procumbens]
                                             <i>Eulychnia castanea</i>
                                             <i>Eulychnia iquiquensis</i>
                                               <i>Eulychnia iquiquensis subsp. iquiquensis</i>
                                               <i>Eulychnia iquiquensis subsp. ritteri</i>
                                             <i>Eulychnia morromorenoensis</i>
                                             <i>Eulychnia ritteri</i>
                                             <i>Eulychnia saint-pieana</i>
                                     <i>Facheiroa</i>
                                             <i>Facheiroa cephaliomelana</i>
                                               <i>Facheiroa cephaliomelana subsp. cephaliomelana</i>
                                               <i>Facheiroa cephaliomelana subsp. estevesii</i>
                                             <i>Facheiroa estevesii</i>
                                             <i>Facheiroa pilosa</i>
                                             <i>Facheiroa squamosa</i>
                                                   [Facheiroa braunii]
                                                   [Facheiroa chaetacantha]
                                                   [Facheiroa squamosa subsp. polygona]
                                             <i>Facheiroa tenebrosa</i>
                                             <i>Facheiroa ulei</i>
                                                   [Facheiroa pubiflora]
                                     <i>Ferocactus</i>
                                             <i>Ferocactus alamosanus</i>
                                                   [Ferocactus pottsii var. alamosanus]
                                               <i>Ferocactus alamosanus subsp. alamosanus</i>
                                               <i>Ferocactus alamosanus subsp. reppenhagenii</i>
                                               <i>Ferocactus alamosanus var. alamosanus</i>
                                             <i>Ferocactus chrysacanthus</i>
                                               <i>Ferocactus chrysacanthus subsp. chrysacanthus</i>
                                               <i>Ferocactus chrysacanthus subsp. grandiflorus</i>
                                                     [Ferocactus fordii var. grandiflorus]
                                             <i>Ferocactus cylindraceus</i>
                                                   [Ferocactus acanthodes]
                                               <i>Ferocactus cylindraceus subsp. cylindraceus</i>
                                                     [Echinocactus acanthodes var. rostii]
                                                     [Echinocactus acanthodes]
                                                     [Ferocactus acanthodes var. acanthodes]
                                                     [Ferocactus cylindraceus var. cylindraceus]
                                               <i>Ferocactus cylindraceus subsp. eastwoodiae</i>
                                                     [Ferocactus acanthodes var. eastwoodiae]
                                                     [Ferocactus cylindraceus var. eastwoodiae]
                                                     [Ferocactus eastwoodiae]
                                               <i>Ferocactus cylindraceus subsp. lecontei</i>
                                                     [Echinocactus lecontei]
                                                     [Echinocactus wislizeni var. lecontei]
                                                     [Ferocactus acanthodes var. lecontei]
                                                     [Ferocactus cylindraceus var. lecontei]
                                                     [Ferocactus lecontei]
                                               <i>Ferocactus cylindraceus subsp. tortulispinus</i>
                                                     [Ferocactus acanthodes var. tortulispinus]
                                                     [Ferocactus cylindraceus var. tortulispinus]
                                                     [Ferocactus cylindraceus var. tortulospinus]
                                             <i>Ferocactus diguetii</i>
                                               <i>Ferocactus diguetii var. carmenensis</i>
                                               <i>Ferocactus diguetii var. diguetii</i>
                                             <i>Ferocactus echidne</i>
                                                   [Echinocactus victoriensis]
                                             <i>Ferocactus emoryi</i>
                                                   [Ferocactus covillei]
                                               <i>Ferocactus emoryi subsp. covillei</i>
                                               <i>Ferocactus emoryi subsp. emoryi</i>
                                               <i>Ferocactus emoryi subsp. rectispinus</i>
                                                     [Ferocactus emoryi var. rectispinus]
                                               <i>Ferocactus emoryi var. emoryi</i>
                                             <i>Ferocactus flavovirens</i>
                                             <i>Ferocactus fordii</i>
                                                   [Ferocactus fordii var. fordii]
                                               <i>Ferocactus fordii subsp. borealis</i>
                                               <i>Ferocactus fordii subsp. fordii</i>
                                             <i>Ferocactus gatesii</i>
                                             <i>Ferocactus glaucescens</i>
                                             <i>Ferocactus gracilis</i>
                                                   [Ferocactus gracilis var. gracilis]
                                               <i>Ferocactus gracilis subsp. coloratus</i>
                                                     [Ferocactus coloratus]
                                                     [Ferocactus gracilis var. coloratus]
                                               <i>Ferocactus gracilis subsp. gatesii</i>
                                               <i>Ferocactus gracilis subsp. gracilis</i>
                                             <i>Ferocactus haematacanthus</i>
                                             <i>Ferocactus hamatacanthus</i>
                                                   [Echinocactus longihamatus var. crassispinus]
                                               <i>Ferocactus hamatacanthus subsp. hamatacanthus</i>
                                                     [Hamatocactus hamatacanthus]
                                               <i>Ferocactus hamatacanthus subsp. sinuatus</i>
                                               <i>Ferocactus hamatacanthus var. hamatacanthus</i>
                                               <i>Ferocactus hamatacanthus var. sinuatus</i>
                                             <i>Ferocactus herrerae</i>
                                                   [Ferocactus wislizeni var. herrerae]
                                             <i>Ferocactus histrix</i>
                                             <i>Ferocactus horridus</i>
                                             <i>Ferocactus johnstonianus</i>
                                             <i>Ferocactus latispinus</i>
                                               <i>Ferocactus latispinus subsp. greenwoodii</i>
                                                     [Ferocactus recurvus var. greenwoodii]
                                               <i>Ferocactus latispinus subsp. latispinus</i>
                                                     [Echinocactus cornigerus]
                                               <i>Ferocactus latispinus subsp. spiralis</i>
                                             <i>Ferocactus lindsayi</i>
                                             <i>Ferocactus macrodiscus</i>
                                               <i>Ferocactus macrodiscus subsp. macrodiscus</i>
                                               <i>Ferocactus macrodiscus subsp. septentrionalis</i>
                                             <i>Ferocactus melocactiformis</i>
                                             <i>Ferocactus nobilis</i>
                                             <i>Ferocactus peninsulae</i>
                                               <i>Ferocactus peninsulae subsp. peninsulae</i>
                                               <i>Ferocactus peninsulae subsp. townsendianus</i>
                                               <i>Ferocactus peninsulae var. peninsulae</i>
                                               <i>Ferocactus peninsulae var. santa-maria</i>
                                               <i>Ferocactus peninsulae var. townsendianus</i>
                                               <i>Ferocactus peninsulae var. viscainensis</i>
                                             <i>Ferocactus pilosus</i>
                                                   [Echinocactus pilosus var. pringlei]
                                                   [Echinocactus pilosus]
                                                   [Ferocactus pringlei]
                                             <i>Ferocactus pottsii</i>
                                             <i>Ferocactus rectispinus</i>
                                             <i>Ferocactus recurvus</i>
                                               <i>Ferocactus recurvus subsp. greenwoodiae</i>
                                               <i>Ferocactus recurvus subsp. recurvus</i>
                                             <i>Ferocactus robustus</i>
                                             <i>Ferocactus rostii</i>
                                             <i>Ferocactus santa-maria</i>
                                                   [Ferocactus peninsulae subsp. santa-maria]
                                                   [Ferocactus townsendianus var. santamaria]
                                             <i>Ferocactus schwarzii</i>
                                             <i>Ferocactus setispinus</i>
                                             <i>Ferocactus stainesii</i>
                                             <i>Ferocactus tiburonensis</i>
                                                   [Ferocactus wislizeni var. tiburonensis]
                                             <i>Ferocactus townsendianus</i>
                                               <i>Ferocactus townsendianus var. santa-maria</i>
                                               <i>Ferocactus townsendianus var. townsendianus</i>
                                             <i>Ferocactus uncinatus</i>
                                             <i>Ferocactus viridescens</i>
                                                   [Echinocactus orcuttii]
                                                   [Echinocactus viridescens]
                                               <i>Ferocactus viridescens subsp. littoralis</i>
                                               <i>Ferocactus viridescens var. littoralis</i>
                                               <i>Ferocactus viridescens var. viridescens</i>
                                             <i>Ferocactus wislizeni</i>
                                                   [Echinocactus wislizeni]
                                                   [Ferocactus wislizenii]
                                               <i>Ferocactus wislizeni subsp. ajoensis</i>
                                               <i>Ferocactus wislizeni var. wislizeni</i>
                                     <i>Frailea</i>
                                             <i>Frailea alacriportana</i>
                                             <i>Frailea albicolumnaris</i>
                                             <i>Frailea albifusca</i>
                                             <i>Frailea asperispina</i>
                                             <i>Frailea aureinitens</i>
                                             <i>Frailea aureispina</i>
                                             <i>Frailea buenekeri</i>
                                               <i>Frailea buenekeri subsp. buenekeri</i>
                                               <i>Frailea buenekeri subsp. densispina</i>
                                             <i>Frailea buiningiana</i>
                                             <i>Frailea castanea</i>
                                                   [Frailea castanea subsp. castanea]
                                                   [Frailea castanea subsp. harmoniana]
                                             <i>Frailea cataphracta</i>
                                                   [Frailea cataphracta subsp. cataphracta]
                                                   [Frailea cataphracta subsp. duchii]
                                                   [Frailea cataphracta subsp. melitae]
                                                   [Frailea cataphracta var. duchii]
                                                   [Frailea matoana]
                                                   [Frailea melitae]
                                                   [Frailea uhligiana]
                                             <i>Frailea chiquitana</i>
                                                   [Frailea pullispina]
                                             <i>Frailea concepcionensis</i>
                                             <i>Frailea curvispina</i>
                                             <i>Frailea friedrichii</i>
                                             <i>Frailea fulviseta</i>
                                                   [Frailea pygmaea subsp. fulviseta]
                                             <i>Frailea gracillima</i>
                                               <i>Frailea gracillima subsp. gracillima</i>
                                                     [Frailea gracillima subsp. albifusca]
                                               <i>Frailea gracillima subsp. horstii</i>
                                             <i>Frailea grahliana</i>
                                             <i>Frailea horstii</i>
                                             <i>Frailea ignacionensis</i>
                                             <i>Frailea knippeliana</i>
                                             <i>Frailea lepida</i>
                                             <i>Frailea mammifera</i>
                                               <i>Frailea mammifera subsp. angelesiae</i>
                                               <i>Frailea mammifera subsp. mammifera</i>
                                             <i>Frailea moseriana</i>
                                             <i>Frailea perumbilicata</i>
                                             <i>Frailea phaeodisca</i>
                                                   [Frailea perbella]
                                             <i>Frailea pseudogracillima</i>
                                             <i>Frailea pseudopulcherrima</i>
                                             <i>Frailea pumila</i>
                                                   [Frailea albiareolata]
                                                   [Frailea carminifilamentosa]
                                                   [Frailea deminuta]
                                                   [Frailea pumila subsp. albiareolata]
                                                   [Frailea pumila subsp. deminuta]
                                                   [Frailea pumila subsp. maior]
                                                   [Frailea pumila subsp. pumila]
                                                   [Frailea pumila var. maior]
                                             <i>Frailea pygmaea</i>
                                                   [Frailea pulcherrima]
                                               <i>Frailea pygmaea subsp. albicolumnaris</i>
                                               <i>Frailea pygmaea subsp. pygmaea</i>
                                                     [Frailea pygmaea subsp. altigibbera]
                                                     [Frailea pygmaea subsp. asperispina]
                                                     [Frailea pygmaea subsp. aureinitens]
                                                     [Frailea pygmaea subsp. aureispina]
                                                     [Frailea pygmaea subsp. lilalunula]
                                                     [Frailea pygmaea var. altigibbera]
                                                     [Frailea pygmaea var. lilalunula]
                                               <i>Frailea pygmaea subsp. tuyensis</i>
                                                     [Frailea cataphracta subsp. tuyensis]
                                                     [Frailea cataphracta var. tuyensis]
                                             <i>Frailea schilinzkyana</i>
                                               <i>Frailea schilinzkyana subsp. concepcionensis</i>
                                               <i>Frailea schilinzkyana subsp. schilinzkyana</i>
                                                     [Frailea grahliana subsp. grahliana]
                                                     [Frailea grahliana subsp. moseriana]
                                             <i>Frailea ybatense</i>
                                     <i>Geohintonia</i>
                                             <i>Geohintonia mexicana</i>
                                     <i>Glandulicactus</i>
                                             <i>Glandulicactus crassihamatus</i>
                                                   [Glandulicactus mathssonii]
                                             <i>Glandulicactus uncinatus</i>
                                               <i>Glandulicactus uncinatus subsp. uncinatus</i>
                                                     [Hamatocactus uncinatus]
                                               <i>Glandulicactus uncinatus subsp. wrightii</i>
                                               <i>Glandulicactus uncinatus var. wrightii</i>
                                     <i>Grusonia</i>
                                             <i>Corynopuntia clavata</i>
                                             <i>Corynopuntia emoryi</i>
                                                   [Corynopuntia stanlyi]
                                             <i>Corynopuntia marenae</i>
                                                   [Grusonia marenae]
                                                   [Marenopuntia marenae]
                                                   [Opuntia marenae]
                                             <i>Corynopuntia parishii</i>
                                             <i>Grusonia aggeria</i>
                                                   [Opuntia aggeria]
                                             <i>Grusonia bradtiana</i>
                                                   [Cereus bradtianus]
                                             <i>Grusonia bulbispina</i>
                                             <i>Grusonia clavata</i>
                                             <i>Grusonia densispina</i>
                                             <i>Grusonia emoryi</i>
                                                   [Grusonia stanlyi]
                                                   [Opuntia standlyi]
                                                   [Opuntia stanlyi]
                                             <i>Grusonia grahamii</i>
                                                   [Opuntia agglomerata]
                                                   [Opuntia grahamii]
                                                   [Opuntia schottii var. grahamii]
                                             <i>Grusonia hamiltonii</i>
                                             <i>Grusonia imbricata</i>
                                             <i>Grusonia invicta</i>
                                                   [Corynopuntia invicta]
                                                   [Opuntia invicta]
                                             <i>Grusonia kunzei</i>
                                                   [Corynopuntia kunzei]
                                                   [Opuntia kunzei]
                                                   [Opuntia stanlyi var. kunzei]
                                                   [Opuntia stanlyi var. peeblesiana]
                                                   [Opuntia wrightiana]
                                             <i>Grusonia moelleri</i>
                                             <i>Grusonia parishii</i>
                                                   [Opuntia parishii]
                                                   [Opuntia stanlyi var. parishii]
                                             <i>Grusonia parishiorum</i>
                                             <i>Grusonia pulchella</i>
                                                   [Corynopuntia pulchella]
                                                   [Opuntia barkleyana]
                                                   [Opuntia brachyrhopalica]
                                                   [Opuntia gracilicylindrica]
                                                   [Opuntia pulchella]
                                                   [Opuntia pygmaea]
                                                   [Opuntia spectatissima]
                                                   [Opuntia tuberculosirhopalica]
                                                   [Opuntia wiegandii]
                                             <i>Grusonia reflexispina</i>
                                                   [Corynopuntia reflexispina]
                                                   [Opuntia reflexispina]
                                             <i>Grusonia robertsii</i>
                                             <i>Grusonia schottii</i>
                                                   [Corynopuntia densispina]
                                                   [Opuntia densispina]
                                                   [Opuntia schottii var. schottii]
                                                   [Opuntia schottii]
                                             <i>Grusonia vilis</i>
                                             <i>Grusonia wrightiana</i>
                                     <i>Gymnanthocereus</i>
                                     <i>Gymnocactus</i>
                                             <i>Gymnocactus beguinii</i>
                                     <i>Gymnocalycium</i>
                                           [Gymnocalycium hyptiacanthum]
                                           [Gymnocalycium leptanthum]
                                           [Gymnocalycium mucidum]
                                           [Gymnocalycium netrelianum]
                                           [Gymnocalycium parvulum]
                                           [Gymnocalycium platense]
                                           [Gymnocalycium quehlianum]
                                             <i>Gymnocalycium achirasense</i>
                                             <i>Gymnocalycium acorrugatum</i>
                                             <i>Gymnocalycium alboareolatum</i>
                                             <i>Gymnocalycium amerhauseri</i>
                                                   [Gymnocalycium walteri]
                                             <i>Gymnocalycium andreae</i>
                                                   [Gymnocalycium andreae subsp. andreae]
                                                   [Gymnocalycium andreae subsp. carolinense]
                                             <i>Gymnocalycium anisitsii</i>
                                               <i>Gymnocalycium anisitsii subsp. anisitsii</i>
                                               <i>Gymnocalycium anisitsii subsp. damsii</i>
                                                     [Gymnocalycium anisitsii subsp. multiproliferum]
                                             <i>Gymnocalycium antherostele</i>
                                             <i>Gymnocalycium armatum</i>
                                             <i>Gymnocalycium baldianum</i>
                                                   [Echinocactus baldianus]
                                                   [Gymnocalycium rosae]
                                             <i>Gymnocalycium bayrianum</i>
                                             <i>Gymnocalycium berchtii</i>
                                                   [Gymnocalycium poeschlii]
                                                   [Gymnocalycium terweemeanum]
                                             <i>Gymnocalycium bodenbenderianum</i>
                                                   [Echinocactus bodenbenderianus]
                                                   [Gymnocalycium bodenbenderianum subsp. bodenbenderianum]
                                                   [Gymnocalycium bodenbenderianus]
                                                   [Gymnocalycium piltziorum]
                                                   [Gymnocalycium riojense subsp. kozelskyanum]
                                                   [Gymnocalycium riojense subsp. paucispinum]
                                                   [Gymnocalycium riojense subsp. piltziorum]
                                                   [Gymnocalycium riojense subsp. riojense]
                                                   [Gymnocalycium riojense]
                                             <i>Gymnocalycium borthii</i>
                                             <i>Gymnocalycium bozsingianum</i>
                                             <i>Gymnocalycium brachyanthum</i>
                                             <i>Gymnocalycium brachypetalum</i>
                                             <i>Gymnocalycium bruchii</i>
                                                   [Gymnocalycium albispinum]
                                                   [Gymnocalycium papschii]
                                             <i>Gymnocalycium buenekeri</i>
                                             <i>Gymnocalycium calochlorum</i>
                                                   [Gymnocalycium proliferum]
                                                   [Gymnocalycium sigelianum]
                                             <i>Gymnocalycium capillaense</i>
                                                   [Gymnocalycium deeszianum]
                                                   [Gymnocalycium fischeri]
                                                   [Gymnocalycium sutterianum]
                                             <i>Gymnocalycium cardenasianum</i>
                                             <i>Gymnocalycium castellanosii</i>
                                               <i>Gymnocalycium castellanosii subsp. acorrugatum</i>
                                               <i>Gymnocalycium castellanosii subsp. castellanosii</i>
                                               <i>Gymnocalycium castellanosii subsp. ferocior</i>
                                             <i>Gymnocalycium chiquitanum</i>
                                                   [Gymnocalycium hammerschmidii]
                                                   [Gymnocalycium paediophilum]
                                                   [Gymnocalycium pediophilum]
                                             <i>Gymnocalycium chubutense</i>
                                             <i>Gymnocalycium chuquisacanum</i>
                                             <i>Gymnocalycium damsii</i>
                                             <i>Gymnocalycium delaetii</i>
                                             <i>Gymnocalycium denudatum</i>
                                                   [Gymnocalycium megalothelon]
                                             <i>Gymnocalycium erinaceum</i>
                                             <i>Gymnocalycium eurypleurum</i>
                                             <i>Gymnocalycium ferox</i>
                                             <i>Gymnocalycium ferrarii</i>
                                             <i>Gymnocalycium gerardii</i>
                                             <i>Gymnocalycium gibbosum</i>
                                               <i>Gymnocalycium gibbosum subsp. borthii</i>
                                               <i>Gymnocalycium gibbosum subsp. gibbosum</i>
                                                     [Gymnocalycium gibbosum subsp. ferox]
                                             <i>Gymnocalycium glaucum</i>
                                               <i>Gymnocalycium glaucum subsp. ferrarii</i>
                                               <i>Gymnocalycium glaucum subsp. glaucum</i>
                                             <i>Gymnocalycium horridispinum</i>
                                             <i>Gymnocalycium horstii</i>
                                               <i>Gymnocalycium horstii subsp. buenekeri</i>
                                               <i>Gymnocalycium horstii subsp. horstii</i>
                                             <i>Gymnocalycium hossei</i>
                                                   [Gymnocalycium mazanense]
                                                   [Gymnocalycium nidulans]
                                                   [Gymnocalycium weissianum]
                                             <i>Gymnocalycium hybopleurum</i>
                                             <i>Gymnocalycium izozogsii</i>
                                             <i>Gymnocalycium joossensianum</i>
                                             <i>Gymnocalycium kieslingii</i>
                                             <i>Gymnocalycium kroenleinii</i>
                                             <i>Gymnocalycium lagunillasense</i>
                                             <i>Gymnocalycium leeanum</i>
                                             <i>Gymnocalycium loricatum</i>
                                             <i>Gymnocalycium mackieanum</i>
                                             <i>Gymnocalycium marquezii</i>
                                             <i>Gymnocalycium marsoneri</i>
                                               <i>Gymnocalycium marsoneri subsp. marsoneri</i>
                                               <i>Gymnocalycium marsoneri subsp. matoense</i>
                                                     [Gymnocalycium eytianum]
                                                     [Gymnocalycium hamatum]
                                                     [Gymnocalycium matoense]
                                                     [Gymnocalycium megatae]
                                                     [Gymnocalycium onychacanthum]
                                                     [Gymnocalycium pseudomalacocarpus]
                                                     [Gymnocalycium tudae]
                                             <i>Gymnocalycium mesopotamicum</i>
                                                   [Gymnocalycium angelae]
                                             <i>Gymnocalycium michoga</i>
                                             <i>Gymnocalycium mihanovichii</i>
                                             <i>Gymnocalycium millaresii</i>
                                             <i>Gymnocalycium monvillei</i>
                                               <i>Gymnocalycium monvillei subsp. achirasense</i>
                                               <i>Gymnocalycium monvillei subsp. horridispinum</i>
                                               <i>Gymnocalycium monvillei subsp. monvillei</i>
                                                     [Gymnocalycium monvillei subsp. brachyanthum]
                                                     [Gymnocalycium monvillei subsp. gertrudae]
                                                     [Gymnocalycium monvillei var. gertrudae]
                                             <i>Gymnocalycium mostii</i>
                                                   [Gymnocalycium bicolor]
                                                   [Gymnocalycium grandiflorum]
                                                   [Gymnocalycium immemoratum]
                                                   [Gymnocalycium kurtzianum]
                                                   [Gymnocalycium tobuschianum]
                                                   [Gymnocalycium valnicekianum]
                                               <i>Gymnocalycium mostii subsp. ferocius</i>
                                             <i>Gymnocalycium multiflorum</i>
                                             <i>Gymnocalycium neuhuberi</i>
                                             <i>Gymnocalycium nigriareolatum</i>
                                             <i>Gymnocalycium ochoterenae</i>
                                                   [Gymnocalycium bodenbenderianum subsp. intertextum]
                                                   [Gymnocalycium intertextum]
                                                   [Gymnocalycium moserianum]
                                                   [Gymnocalycium ochoterenae subsp. herbsthoferianum]
                                                   [Gymnocalycium ochoterenae subsp. ochoterenae]
                                                   [Gymnocalycium ochoterenae subsp. vatteri]
                                                   [Gymnocalycium vatteri]
                                             <i>Gymnocalycium oenanthemum</i>
                                                   [Gymnocalycium ambatoense]
                                                   [Gymnocalycium carminanthum]
                                                   [Gymnocalycium tillianum]
                                             <i>Gymnocalycium paraguayense</i>
                                                   [Gymnocalycium fleischerianum var. anoplum]
                                                   [Gymnocalycium fleischerianum var. fleischerianum]
                                                   [Gymnocalycium fleischerianum]
                                                   [Gymnocalycium paraguayense f. fleischerianum]
                                             <i>Gymnocalycium pflanzii</i>
                                               <i>Gymnocalycium pflanzii subsp. argentinense</i>
                                               <i>Gymnocalycium pflanzii subsp. pflanzii</i>
                                               <i>Gymnocalycium pflanzii subsp. zegarrae</i>
                                             <i>Gymnocalycium pugionacanthum</i>
                                                   [Gymnocalycium catamarcense subsp. acinacispinum]
                                                   [Gymnocalycium catamarcense subsp. catamarcense]
                                                   [Gymnocalycium catamarcense subsp. schmidianum]
                                                   [Gymnocalycium catamarcense]
                                             <i>Gymnocalycium ragonesei</i>
                                             <i>Gymnocalycium reductum</i>
                                               <i>Gymnocalycium reductum var. leeanum</i>
                                               <i>Gymnocalycium reductum var. reductum</i>
                                             <i>Gymnocalycium rhodantherum</i>
                                             <i>Gymnocalycium riograndense</i>
                                             <i>Gymnocalycium ritterianum</i>
                                                   [Gymnocalycium jochumii]
                                             <i>Gymnocalycium robustum</i>
                                             <i>Gymnocalycium saglionis</i>
                                                   [Gymnocalycium saglione]
                                                   [Gymnocalycium tilcarense]
                                               <i>Gymnocalycium saglionis subsp. saglionis</i>
                                               <i>Gymnocalycium saglionis subsp. tilcarense</i>
                                             <i>Gymnocalycium schatzlianum</i>
                                             <i>Gymnocalycium schickendantzii</i>
                                               <i>Gymnocalycium schickendantzii subsp. delaetii</i>
                                               <i>Gymnocalycium schickendantzii subsp. schickendantzii</i>
                                             <i>Gymnocalycium schroederianum</i>
                                                   [Gymnocalycium erolesii]
                                                   [Gymnocalycium schroederianum subsp. bayense]
                                               <i>Gymnocalycium schroederianum subsp. paucicostatum</i>
                                               <i>Gymnocalycium schroederianum subsp. schroederianum</i>
                                             <i>Gymnocalycium schuetzianum</i>
                                             <i>Gymnocalycium spegazzinii</i>
                                               <i>Gymnocalycium spegazzinii subsp. cardenasianum</i>
                                               <i>Gymnocalycium spegazzinii subsp. spegazzinii</i>
                                             <i>Gymnocalycium stellatum</i>
                                                   [Gymnocalycium asterium]
                                                   [Gymnocalycium obductum]
                                                   [Gymnocalycium stellatum subsp. occultum]
                                                   [Gymnocalycium stellatum subsp. stellatum]
                                             <i>Gymnocalycium stenopleurum</i>
                                                   [Gymnocalycium friedrichii]
                                             <i>Gymnocalycium striglianum</i>
                                             <i>Gymnocalycium stuckertii</i>
                                             <i>Gymnocalycium taningaense</i>
                                                   [Gymnocalycium gaponii]
                                             <i>Gymnocalycium uebelmannianum</i>
                                             <i>Gymnocalycium uruguayense</i>
                                                   [Gymnocalycium artigas]
                                                   [Gymnocalycium guerkeanum]
                                                   [Gymnocalycium melanocarpum]
                                                   [Gymnocalycium rauschii]
                                             <i>Gymnocalycium zegarrae</i>
                                     <i>Haageocereus</i>
                                             <i>Haageocereus acanthocladus</i>
                                             <i>Haageocereus achaetus</i>
                                             <i>Haageocereus acranthus</i>
                                               <i>Haageocereus acranthus subsp. acranthus</i>
                                               <i>Haageocereus acranthus subsp. olowinskianus</i>
                                             <i>Haageocereus aureispinus</i>
                                             <i>Haageocereus chalaensis</i>
                                             <i>Haageocereus chilensis</i>
                                             <i>Haageocereus chryseus</i>
                                             <i>Haageocereus clavispinus</i>
                                             <i>Haageocereus decumbens</i>
                                                   [Borzicactus decumbens]
                                                   [Haageocereus ambiguus]
                                                   [Haageocereus australis]
                                                   [Haageocereus litoralis]
                                                   [Haageocereus mamillatus var. brevior]
                                                   [Haageocereus multicolorispinus]
                                                   [Haageocereus subtilispinus]
                                             <i>Haageocereus deflexispinus</i>
                                             <i>Haageocereus dichromus</i>
                                             <i>Haageocereus divaricatispinus</i>
                                             <i>Haageocereus fascicularis</i>
                                             <i>Haageocereus fulvus</i>
                                             <i>Haageocereus icensis</i>
                                             <i>Haageocereus lachayensis</i>
                                             <i>Haageocereus longiareolatus</i>
                                             <i>Haageocereus mamillatus</i>
                                             <i>Haageocereus multangularis</i>
                                             <i>Haageocereus olowinskianus</i>
                                             <i>Haageocereus pacalaensis</i>
                                                   [Haageocereus horrens]
                                                   [Haageocereus laredensis]
                                                   [Haageocereus repens]
                                                   [Haageocereus tenuispinus]
                                             <i>Haageocereus pachystele</i>
                                             <i>Haageocereus peniculatus</i>
                                             <i>Haageocereus piliger</i>
                                             <i>Haageocereus platinospinus</i>
                                                   [Haageocereus pluriflorus]
                                             <i>Haageocereus pseudoacranthus</i>
                                             <i>Haageocereus pseudomelanostele</i>
                                                   [Cereus pseudomelanostele]
                                                   [Haageocereus akersii]
                                                   [Haageocereus albispinus]
                                                   [Haageocereus chosicensis]
                                                   [Haageocereus chrysacanthus]
                                                   [Haageocereus crassiareolatus]
                                               <i>Haageocereus pseudomelanostele subsp. acanthocladus</i>
                                               <i>Haageocereus pseudomelanostele subsp. aureispinus</i>
                                               <i>Haageocereus pseudomelanostele subsp. chryseus</i>
                                               <i>Haageocereus pseudomelanostele subsp. pseudomelanostele</i>
                                                     [Haageocereus kagenekii]
                                                     [Haageocereus pseudomelanostele subsp. carminiflorus]
                                                     [Haageocereus pseudomelanostele var. carminiflorus]
                                               <i>Haageocereus pseudomelanostele subsp. turbidus</i>
                                             <i>Haageocereus pseudoversicolor</i>
                                                   [Haageocereus icosagonoides]
                                             <i>Haageocereus setosus</i>
                                             <i>Haageocereus symmetros</i>
                                             <i>Haageocereus tenuis</i>
                                                   [Haageocereus decumbens subsp. tenuis]
                                                   [Haageocereus lanugispinus]
                                             <i>Haageocereus turbidus</i>
                                             <i>Haageocereus versicolor</i>
                                             <i>Haageocereus vulpes</i>
                                             <i>Haageocereus zangalensis</i>
                                             <i>Haageocereus zonatus</i>
                                     <i>Haagespostoa</i>
                                             <i>Haagespostoa climaxantha</i>
                                     <i>Hamatocactus</i>
                                             <i>Hamatocactus bicolor</i>
                                             <i>Hamatocactus hamatocanthus</i>
                                             <i>Hamatocactus setispinus</i>
                                     <i>Hariota</i>
                                     <i>Harrisia</i>
                                             <i>Harrisia aboriginum</i>
                                             <i>Harrisia adscendens</i>
                                                   [Harrisia platygona]
                                             <i>Harrisia balansae</i>
                                             <i>Harrisia bonplandii</i>
                                                   [Cereus balansae]
                                             <i>Harrisia brookii</i>
                                             <i>Harrisia divaricata</i>
                                             <i>Harrisia donae-antoniae</i>
                                             <i>Harrisia earlei</i>
                                             <i>Harrisia eriophora</i>
                                             <i>Harrisia fernowii</i>
                                             <i>Harrisia fragrans</i>
                                             <i>Harrisia gracilis</i>
                                             <i>Harrisia hurstii</i>
                                             <i>Harrisia martinii</i>
                                                   [Cereus martinii]
                                                   [Eriocereus martinii]
                                             <i>Harrisia pomanensis</i>
                                                   [Harrisia pomanensis subsp. pomanensis]
                                             <i>Harrisia portoricensis</i>
                                             <i>Harrisia regelii</i>
                                                   [Cereus regelii]
                                                   [Harrisia pomanensis subsp. regelii]
                                             <i>Harrisia simpsonii</i>
                                             <i>Harrisia taetra</i>
                                             <i>Harrisia taylorii</i>
                                             <i>Harrisia tetracantha</i>
                                             <i>Harrisia tortuosa</i>
                                                   [Cereus tortuosus]
                                     <i>Hatiora</i>
                                           [Hatiora x graeseri]
                                           [Rhipsalidopsis]
                                             <i>Hatiora cylindrica</i>
                                             <i>Hatiora epiphylloides</i>
                                               <i>Hatiora epiphylloides subsp. bradei</i>
                                               <i>Hatiora epiphylloides subsp. epiphylloides</i>
                                             <i>Hatiora gaertneri</i>
                                                   [Rhipsalidopsis gaertneri]
                                             <i>Hatiora herminiae</i>
                                                   [Rhipsalis herminiae]
                                             <i>Hatiora rosea</i>
                                                   [Rhipsalidopsis rosea]
                                             <i>Hatiora salicornioides</i>
                                                   [Hatiora bambusoides]
                                                   [Rhipsalis salicornioides]
                                     <i>Heliabravoa</i>
                                             <i>Heliabravoa chende</i>
                                     <i>Heliocereus</i>
                                             <i>Heliocereus schrankii</i>
                                                   [Heliocereus coccineus]
                                                   [Heliocereus elegantissimus]
                                               <i>Heliocereus schrankii subsp. stenopetalus</i>
                                                     [Heliocereus elegantissimus var. stenopetalum]
                                             <i>Heliocereus speciosus</i>
                                     <i>Homalocephala</i>
                                     <i>Hylocereus</i>
                                           [Hylocereus microcladus]
                                             <i>Hylocereus calcaratus</i>
                                             <i>Hylocereus costaricensis</i>
                                             <i>Hylocereus escuintlensis</i>
                                             <i>Hylocereus extensus</i>
                                                   [Cereus extensus]
                                                   [Selenicereus extensus]
                                             <i>Hylocereus lemairei</i>
                                                   [Hylocereus venezuelensis]
                                             <i>Hylocereus megalanthus</i>
                                                   [Mediocactus megalanthus]
                                                   [Selenicereus megalanthus]
                                             <i>Hylocereus minutiflorus</i>
                                             <i>Hylocereus monacanthus</i>
                                                   [Cereus lamairei]
                                                   [Cereus lemairei]
                                                   [Hylocereus estebanensis]
                                                   [Hylocereus peruvianus]
                                                   [Hylocereus polyrhizus]
                                                   [Hylocereus scandens]
                                             <i>Hylocereus ocamponis</i>
                                             <i>Hylocereus purpusii</i>
                                             <i>Hylocereus setaceus</i>
                                                   [Cereus hassleri]
                                                   [Cereus lindbergianus]
                                                   [Cereus lindmanii]
                                                   [Mediocactus hassleri]
                                                   [Mediocactus lindmanii]
                                                   [Selenicereus rizzini]
                                                   [Selenicereus setaceus]
                                             <i>Hylocereus stenopterus</i>
                                             <i>Hylocereus triangularis</i>
                                                   [Hylocereus antiguensis]
                                                   [Hylocereus compressus]
                                                   [Hylocereus cubensis]
                                                   [Hylocereus napoleonis]
                                                   [Hylocereus plumieri]
                                             <i>Hylocereus tricae</i>
                                                   [Selenicereus tricae]
                                             <i>Hylocereus trigonus</i>
                                                   [Cereus triangularis]
                                             <i>Hylocereus undatus</i>
                                                   [Hylocereus guatemalensis]
                                     <i>Hymenorebutia</i>
                                     <i>Islaya</i>
                                             <i>Islaya paucispina</i>
                                     <i>Isolatocereus</i>
                                             <i>Isolatocereus dumortieri</i>
                                                   [Lemaireocereus dumortieri]
                                     <i>Jasminocereus</i>
                                             <i>Jasminocereus thouarsii</i>
                                                   [Jasminocereus galapagensis]
                                                   [Jasminocereus howellii]
                                                   [Jasminocereus sclerocarpus]
                                               <i>Jasminocereus thouarsii var. delicatus</i>
                                     <i>Kimnachia</i>
                                             <i>Kimnachia ramulosa</i>
                                               <i>Kimnachia ramulosa subsp. ramulosa</i>
                                                     [Rhipsalis coriacea]
                                     <i>Kroenleinia</i>
                                             <i>Kroenleinia grusonii</i>
                                     <i>Lamaireocereus</i>
                                     <i>Lasiocereus</i>
                                             <i>Lasiocereus fulvus</i>
                                             <i>Lasiocereus rupicola</i>
                                     <i>Lemaireocereus</i>
                                             <i>Lemaireocereus hystrix</i>
                                             <i>Lemaireocereus montanus</i>
                                             <i>Lemaireocereus pruinosus</i>
                                     <i>Leocereus</i>
                                             <i>Leocereus bahiensis</i>
                                                   [Leocereus bahiensis subsp. barreirensis]
                                                   [Leocereus bahiensis subsp. exiguospinus]
                                                   [Leocereus bahiensis subsp. robustispinus]
                                                   [Leocereus bahiensis subsp. urandianus]
                                                   [Leocereus bahiensis var. barreirensis]
                                                   [Leocereus bahiensis var. exiguospinus]
                                                   [Leocereus bahiensis var. robustispinus]
                                                   [Leocereus urandianus]
                                     <i>Lepismium</i>
                                             <i>Lepismium cruciforme</i>
                                                   [Lepismium myosurus]
                                                   [Rhipsalis cruciformis]
                                                   [Rhipsalis squamulosa]
                                             <i>Lepismium gibberulum</i>
                                             <i>Lepismium houlletianum</i>
                                                   [Rhipsalis houlletiana]
                                                   [Rhipsalis regnellii]
                                             <i>Lepismium incachacanum</i>
                                                   [Rhipsalis incachacana]
                                             <i>Lepismium lorentzianum</i>
                                                   [Rhipsalis lorentziana]
                                             <i>Lepismium lumbricoides</i>
                                                   [Lepismium aculeatum]
                                                   [Rhipsalis aculeata]
                                                   [Rhipsalis leucorhaphis]
                                                   [Rhipsalis loefgrenii]
                                             <i>Lepismium pittieri</i>
                                             <i>Lepismium pulvinigerum</i>
                                             <i>Lepismium puniceodiscus</i>
                                             <i>Lepismium tucumanense</i>
                                             <i>Lepismium warmingianum</i>
                                                   [Lepismium lineare]
                                                   [Rhipsalis gonocarpa]
                                                   [Rhipsalis linearis]
                                                   [Rhipsalis warmingiana]
                                     <i>Leptocereus</i>
                                             <i>Leptocereus arboreus</i>
                                             <i>Leptocereus assurgens</i>
                                                   [Leptocereus ekmanii]
                                                   [Leptocereus prostratus]
                                             <i>Leptocereus carinatus</i>
                                             <i>Leptocereus demissus</i>
                                             <i>Leptocereus grantianus</i>
                                             <i>Leptocereus leonii</i>
                                             <i>Leptocereus paniculatus</i>
                                                   [Neoabbottia paniculata]
                                             <i>Leptocereus quadricostatus</i>
                                             <i>Leptocereus scopulophilus</i>
                                             <i>Leptocereus sylvestris</i>
                                                   [Leptocereus maxonii]
                                                   [Leptocereus santamarinae]
                                             <i>Leptocereus undulosus</i>
                                             <i>Leptocereus velozianus</i>
                                             <i>Leptocereus weingartianus</i>
                                             <i>Leptocereus wrightii</i>
                                     <i>Leuchtenbergia</i>
                                             <i>Leuchtenbergia principis</i>
                              Leuenbergerioideae
                                     <i>Leuenbergeria</i>
                                             <i>Leuenbergeria bleo</i>
                                                   [Pereskia corrugata]
                                                   [Rhodocactus bleo]
                                             <i>Leuenbergeria marcanoi</i>
                                             <i>Leuenbergeria portulacifolia</i>
                                     <i>Lobivia</i>
                                             <i>Lobivia adpressispina</i>
                                             <i>Lobivia arachnacantha</i>
                                             <i>Lobivia auranitida</i>
                                             <i>Lobivia bridgesii</i>
                                             <i>Lobivia cachensis</i>
                                             <i>Lobivia caespitosa</i>
                                             <i>Lobivia campicola</i>
                                             <i>Lobivia corbula</i>
                                             <i>Lobivia cornuta</i>
                                             <i>Lobivia culpinensis</i>
                                             <i>Lobivia emmae</i>
                                             <i>Lobivia euanthema</i>
                                             <i>Lobivia famatinensis</i>
                                             <i>Lobivia lateritia</i>
                                             <i>Lobivia maximiliana</i>
                                               <i>Lobivia maximiliana subsp. westii</i>
                                             <i>Lobivia nealeana</i>
                                             <i>Lobivia oxyalabastra</i>
                                             <i>Lobivia pseudocachensis</i>
                                             <i>Lobivia pugionacantha</i>
                                             <i>Lobivia rossii</i>
                                             <i>Lobivia saltensis</i>
                                             <i>Lobivia schreiteri</i>
                                             <i>Lobivia versicolor</i>
                                             <i>Lobivia winteriana</i>
                                             <i>Lobivia wrightiana</i>
                                             <i>Lobivia zencheri</i>
                                     <i>Lophocereus</i>
                                             <i>Lophocereus marginatus</i>
                                     <i>Lophophora</i>
                                             <i>Lophophora alberto-vojtechii</i>
                                             <i>Lophophora diffusa</i>
                                             <i>Lophophora fricii</i>
                                             <i>Lophophora williamsii</i>
                                                   [Anhalonium lewinii]
                                                   [Lophophora williamsii var. echinata]
                                     <i>Loxanthocereus</i>
                                     <i>Machaerocereus</i>
                                             <i>Machaerocereus eruca</i>
                                             <i>Machaerocereus gummosus</i>
                                     <i>Maihuenia</i>
                                             <i>Maihuenia patagonica</i>
                                                   [Maihuenia albolanata]
                                                   [Maihuenia brachydelphys]
                                                   [Maihuenia cumulata]
                                                   [Maihuenia latispina]
                                                   [Maihuenia valentinii]
                                                   [Opuntia patagonica]
                                             <i>Maihuenia poeppigii</i>
                                                   [Maihuenia philippii]
                              Maihuenioideae
                                     <i>Maihueniopsis</i>
                                             <i>Maihueniopsis archiconoidea</i>
                                                   [Opuntia archiconoidea]
                                             <i>Maihueniopsis atacamensis</i>
                                             <i>Maihueniopsis camachoi</i>
                                             <i>Maihueniopsis clavarioides</i>
                                                   [Opuntia clavarioides]
                                                   [Puna clavarioides]
                                             <i>Maihueniopsis colorea</i>
                                             <i>Maihueniopsis conoidea</i>
                                                   [Opuntia conoidea]
                                                   [Tephrocactus conoideus]
                                             <i>Maihueniopsis darwinii</i>
                                                   [Opuntia darwinii]
                                             <i>Maihueniopsis domeykoensis</i>
                                             <i>Maihueniopsis glomerata</i>
                                                   [Maihueniopsis albomarginata]
                                                   [Maihueniopsis crassispina]
                                                   [Maihueniopsis grandiflora]
                                                   [Maihueniopsis leptoclada]
                                                   [Maihueniopsis mandragora]
                                                   [Maihueniopsis molfinoi]
                                                   [Maihueniopsis neuquensis]
                                                   [Maihueniopsis ovallei]
                                                   [Maihueniopsis ovata]
                                                   [Maihueniopsis rahmeri]
                                                   [Maihueniopsis tarapacana]
                                                   [Opuntia atacamensis]
                                                   [Opuntia camachoi]
                                                   [Opuntia colorea]
                                                   [Opuntia crassipina]
                                                   [Opuntia crassispina]
                                                   [Opuntia domeykoensis]
                                                   [Opuntia llanos-de-huanta]
                                                   [Opuntia ovallei]
                                                   [Opuntia ovata]
                                                   [Opuntia rahmeri]
                                                   [Opuntia tarapacana]
                                                   [Opuntia wagenknechtii]
                                                   [Opuntia wetmorei]
                                                   [Tephrocactus atacamensis]
                                                   [Tephrocactus camachoi]
                                                   [Tephrocactus coloreus]
                                                   [Tephrocactus glomeratus]
                                                   [Tephrocactus hickenii]
                                                   [Tephrocactus neuquensis]
                                                   [Tephrocactus reicheanus]
                                                   [Tephrocactus russellii]
                                                   [Tephrocactus tarapacanus]
                                             <i>Maihueniopsis hypogaea</i>
                                             <i>Maihueniopsis leoncito</i>
                                             <i>Maihueniopsis minuta</i>
                                                   [Opuntia minuta]
                                                   [Tephrocactus mandragora]
                                                   [Tephrocactus minutus]
                                             <i>Maihueniopsis nigrispina</i>
                                             <i>Maihueniopsis subterranea</i>
                                                   [Cumulopuntia subterranea]
                                                   [Opuntia subterranea]
                                                   [Puna subterranea]
                                                   [Tephrocactus subterraneus]
                                                   [Tephrocactus variiflorus]
                                     <i>Mamillopsis</i>
                                     <i>Mammillaria</i>
                                           [Mammillaria goodridgii]
                                           [Mammillaria hamata]
                                           [Mammillaria mieheana]
                                           [Mammillaria scheinvariana]
                                             <i>Mammillaria alamensis</i>
                                             <i>Mammillaria albescens</i>
                                             <i>Mammillaria albicans</i>
                                                   [Neomammillaria slevinii]
                                               <i>Mammillaria albicans subsp. albicans</i>
                                               <i>Mammillaria albicans subsp. fraileana</i>
                                             <i>Mammillaria albicoma</i>
                                             <i>Mammillaria albiflora</i>
                                             <i>Mammillaria albilanata</i>
                                               <i>Mammillaria albilanata subsp. albilanata</i>
                                                     [Mammillaria fuauxiana]
                                                     [Mammillaria igualensis]
                                               <i>Mammillaria albilanata subsp. oaxacana</i>
                                                     [Mammillaria ignota]
                                                     [Mammillaria lanigera]
                                                     [Mammillaria monticola]
                                               <i>Mammillaria albilanata subsp. reppenhagenii</i>
                                                     [Mammillaria reppenhagenii]
                                               <i>Mammillaria albilanata subsp. tegelbergiana</i>
                                                     [Mammillaria tegelbergiana]
                                             <i>Mammillaria angelensis</i>
                                             <i>Mammillaria anniana</i>
                                             <i>Mammillaria apamensis</i>
                                             <i>Mammillaria arida</i>
                                             <i>Mammillaria armillata</i>
                                                   [Mammillaria armillata subsp. armillata]
                                             <i>Mammillaria aureilanata</i>
                                             <i>Mammillaria aurihamata</i>
                                             <i>Mammillaria backebergiana</i>
                                               <i>Mammillaria backebergiana subsp. backebergiana</i>
                                               <i>Mammillaria backebergiana subsp. ernestii</i>
                                                     [Mammillaria ernestii]
                                                     [Mammillaria isotensis]
                                             <i>Mammillaria balsasoides</i>
                                             <i>Mammillaria bambusiphila</i>
                                             <i>Mammillaria barbata</i>
                                                   [Mammillaria garessii]
                                                   [Mammillaria morricalii]
                                                   [Mammillaria santaclarensis]
                                             <i>Mammillaria baumii</i>
                                                   [Dolichothele baumii]
                                             <i>Mammillaria baxteriana</i>
                                             <i>Mammillaria bella</i>
                                             <i>Mammillaria beneckei</i>
                                                   [Dolichothele balsasoides]
                                                   [Dolichothele beneckei]
                                                   [Dolichothele nelsonii]
                                                   [Mammillaria barkeri]
                                                   [Mammillaria colonensis]
                                                   [Mammillaria guiengolensis]
                                             <i>Mammillaria berkiana</i>
                                             <i>Mammillaria blossfeldiana</i>
                                                   [Mammillaria shurliana]
                                               <i>Mammillaria blossfeldiana var. blossfeldiana</i>
                                               <i>Mammillaria blossfeldiana var. shurliana</i>
                                             <i>Mammillaria bocasana</i>
                                                   [Mammillaria hirsuta]
                                                   [Mammillaria knebeliana]
                                                   [Mammillaria kunzeana]
                                                   [Mammillaria longicoma]
                                               <i>Mammillaria bocasana subsp. bocasana</i>
                                               <i>Mammillaria bocasana subsp. eschauzieri</i>
                                                     [Neomammillaria longicoma]
                                             <i>Mammillaria bocensis</i>
                                                   [Mammillaria neoschwarzeana]
                                               <i>Mammillaria bocensis var. bocensis</i>
                                               <i>Mammillaria bocensis var. movasana</i>
                                             <i>Mammillaria boedekeriana</i>
                                             <i>Mammillaria boelderliana</i>
                                             <i>Mammillaria bombycina</i>
                                               <i>Mammillaria bombycina subsp. bombycina</i>
                                               <i>Mammillaria bombycina subsp. perezdelarosae</i>
                                             <i>Mammillaria boolii</i>
                                             <i>Mammillaria brachytrichion</i>
                                             <i>Mammillaria brandegeei</i>
                                               <i>Mammillaria brandegeei subsp. brandegeei</i>
                                               <i>Mammillaria brandegeei subsp. glareosa</i>
                                               <i>Mammillaria brandegeei subsp. lewisiana</i>
                                             <i>Mammillaria candida</i>
                                                   [Mammillaria estanzuelensis]
                                                   [Mammillaria ortiz-rubiona]
                                             <i>Mammillaria capensis</i>
                                             <i>Mammillaria carmenae</i>
                                             <i>Mammillaria carnea</i>
                                                   [Neomammillaria carnea]
                                             <i>Mammillaria carretii</i>
                                                   [Neomammillaria saffordii]
                                             <i>Mammillaria celsiana</i>
                                             <i>Mammillaria centraliplumosa</i>
                                             <i>Mammillaria cerralboa</i>
                                                   [Mammillaria armillata subsp. cerralboa]
                                                   [Neomammillaria cerralboa]
                                             <i>Mammillaria chapinensis</i>
                                             <i>Mammillaria chiapensis</i>
                                             <i>Mammillaria chionocephala</i>
                                                   [Mammillaria formosa subsp. chionocephala]
                                             <i>Mammillaria coahuilensis</i>
                                                   [Mammillaria albiarmata]
                                                   [Mammillaria coahuilensis subsp. albiarmata]
                                                   [Mammillaria coahuilensis subsp. coahuilensis]
                                                   [Mammillaria heyderi subsp. coahuilensis]
                                             <i>Mammillaria columbiana</i>
                                               <i>Mammillaria columbiana subsp. columbiana</i>
                                             <i>Mammillaria compressa</i>
                                                   [Mammillaria esseriana]
                                               <i>Mammillaria compressa subsp. centralifera</i>
                                                     [Mammillaria centralifera]
                                               <i>Mammillaria compressa subsp. compressa</i>
                                                     [Mammillaria bernalensis]
                                                     [Mammillaria tolimensis]
                                                     [Neomammillaria compressa]
                                             <i>Mammillaria crassior</i>
                                             <i>Mammillaria crinita</i>
                                                   [Mammillaria pubispina]
                                               <i>Mammillaria crinita subsp. leucantha</i>
                                                     [Mammillaria aureoviridis]
                                                     [Mammillaria brevicrinita]
                                                     [Mammillaria erectohamata]
                                                     [Mammillaria leucantha]
                                                     [Mammillaria moeller-valdeziana]
                                                     [Mammillaria puberula]
                                               <i>Mammillaria crinita subsp. painteri</i>
                                                     [Neomammillaria pygmaea]
                                               <i>Mammillaria crinita subsp. wildii</i>
                                                     [Mammillaria calleana]
                                               <i>mammillaria crinita subsp. crinita</i>
                                                     [Mammillaria mollihamata]
                                                     [Mammillaria pygmaea]
                                                     [Neomammillaria seideliana]
                                             <i>Mammillaria crucigera</i>
                                                   [Mammillaria buchenaui]
                                               <i>Mammillaria crucigera subsp. crucigera</i>
                                               <i>Mammillaria crucigera subsp. tlalocii</i>
                                                     [Mammillaria tlalocii]
                                             <i>Mammillaria dawsonii</i>
                                             <i>Mammillaria decipiens</i>
                                               <i>Mammillaria decipiens subsp. albescens</i>
                                               <i>Mammillaria decipiens subsp. decipiens</i>
                                             <i>Mammillaria deherdtiana</i>
                                               <i>Mammillaria deherdtiana subsp. deherdtiana</i>
                                               <i>Mammillaria deherdtiana subsp. dodsonii</i>
                                             <i>Mammillaria densispina</i>
                                                   [Cactus densispinus]
                                                   [Mammillaria buxbaumeriana]
                                                   [Neomammillaria densispina]
                                             <i>Mammillaria denudata</i>
                                             <i>Mammillaria dioica</i>
                                                   [Mammillaria dioica var. incerta]
                                               <i>Mammillaria dioica subsp. angelensis</i>
                                               <i>Mammillaria dioica subsp. dioica</i>
                                                     [Neomammillaria dioica]
                                               <i>Mammillaria dioica subsp. estebanensis</i>
                                             <i>Mammillaria discolor</i>
                                                   [Mammillaria discolor subsp. discolor]
                                                   [Mammillaria discolor subsp. esperanzaensis]
                                                   [Mammillaria ochoterenae]
                                                   [Mammillaria pachyrhiza]
                                                   [Mammillaria schmollii]
                                             <i>Mammillaria dixanthocentron</i>
                                             <i>Mammillaria dodsonii</i>
                                             <i>Mammillaria dumetorum</i>
                                             <i>Mammillaria duoformis</i>
                                                   [Mammillaria claviformis]
                                                   [Mammillaria erythrocalix]
                                                   [Mammillaria rossiana]
                                             <i>Mammillaria duwei</i>
                                             <i>Mammillaria eichlamii</i>
                                                   [Mammillaria voburnensis var. eichlamii]
                                             <i>Mammillaria ekmanii</i>
                                             <i>Mammillaria elegans</i>
                                             <i>Mammillaria elephantidens</i>
                                             <i>Mammillaria elongata</i>
                                               <i>Mammillaria elongata subsp. echinaria</i>
                                                     [Mammillaria echinaria]
                                               <i>Mammillaria elongata subsp. elongata</i>
                                               <i>Mammillaria elongata var. echinaria</i>
                                             <i>Mammillaria eriacantha</i>
                                             <i>Mammillaria erythrosperma</i>
                                                   [Mammillaria multiformis]
                                                   [Neomammillaria multiformis]
                                             <i>Mammillaria estebanensis</i>
                                             <i>Mammillaria evermanniana</i>
                                                   [Neomammillaria evermanniana]
                                             <i>Mammillaria fittkaui</i>
                                                   [Mammillaria variabilis]
                                               <i>Mammillaria fittkaui subsp. fittkaui</i>
                                               <i>Mammillaria fittkaui subsp. limonensis</i>
                                                     [Mammillaria limonensis]
                                                     [Mammillaria manana]
                                             <i>Mammillaria flavicentra</i>
                                             <i>Mammillaria formosa</i>
                                                   [Mammillaria arroyensis]
                                               <i>Mammillaria formosa subsp. formosa</i>
                                               <i>Mammillaria formosa subsp. microthele</i>
                                                     [Mammillaria microthele]
                                               <i>Mammillaria formosa subsp. pseudocrucigera</i>
                                                     [Mammillaria pseudocrucigera]
                                             <i>Mammillaria fragrans</i>
                                             <i>Mammillaria fraileana</i>
                                             <i>Mammillaria gabbii</i>
                                             <i>Mammillaria gasseriana</i>
                                                   [Mammillaria chica]
                                                   [Mammillaria viescensis]
                                             <i>Mammillaria gatesii</i>
                                             <i>Mammillaria gaumeri</i>
                                                   [Mammillaria heyderi subsp. gaumeri]
                                                   [Neomammillaria gaumeri]
                                             <i>Mammillaria geminispina</i>
                                               <i>Mammillaria geminispina subsp. geminispina</i>
                                                     [Neomammillaria elegans]
                                               <i>Mammillaria geminispina subsp. leucocentra</i>
                                                     [Mammillaria albata]
                                                     [Mammillaria leucocentra]
                                               <i>Mammillaria geminispina var. nobilis</i>
                                             <i>Mammillaria gigantea</i>
                                                   [Mammillaria armatissima]
                                                   [Mammillaria hamiltonhoytiae]
                                                   [Mammillaria ocotillensis]
                                                   [Mammillaria saint-pieana]
                                             <i>Mammillaria giselae</i>
                                             <i>Mammillaria glareosa</i>
                                             <i>Mammillaria glassii</i>
                                                   [Mammillaria ascensionis]
                                                   [Mammillaria glassii subsp. ascensionis]
                                                   [Mammillaria glassii subsp. glassii]
                                                   [Mammillaria glassii var. ascensionis]
                                             <i>Mammillaria glochidiata</i>
                                             <i>Mammillaria goldii</i>
                                             <i>Mammillaria goodridgei</i>
                                                   [Neomammillaria goodridgei]
                                               <i>Mammillaria goodridgei var. goodridgei</i>
                                               <i>Mammillaria goodridgei var. rectispina</i>
                                             <i>Mammillaria gracilis</i>
                                             <i>Mammillaria graessneriana</i>
                                             <i>Mammillaria grahamii</i>
                                               <i>Mammillaria grahamii subsp. grahamii</i>
                                                     [Mammillaria microcarpa subsp. grahamii]
                                                     [Mammillaria microcarpa var. milleri]
                                                     [Mammillaria milleri var. grahamii]
                                                     [Neomammillaria microcarpa]
                                                     [Neomammillaria oliviae]
                                               <i>Mammillaria grahamii subsp. sheldonii</i>
                                                     [Mammillaria marnieriana]
                                                     [Neomammillaria sheldonii]
                                               <i>Mammillaria grahamii var. grahamii</i>
                                                     [Mammillaria microcarpa var. auricarpa]
                                                     [Mammillaria microcarpa]
                                                     [Mammillaria milleri]
                                               <i>Mammillaria grahamii var. oliviae</i>
                                                     [Mammillaria oliviae]
                                             <i>Mammillaria grusonii</i>
                                                   [Mammillaria durangicola]
                                                   [Mammillaria papasquiarensis]
                                                   [Mammillaria zeyeriana]
                                             <i>Mammillaria gueldemanniana</i>
                                               <i>Mammillaria gueldemanniana var. guirocobensis</i>
                                             <i>Mammillaria guelzowiana</i>
                                             <i>Mammillaria guerreronis</i>
                                                   [Mammillaria zapilotensis]
                                             <i>Mammillaria guillauminiana</i>
                                             <i>Mammillaria guirocobensis</i>
                                             <i>Mammillaria haageana</i>
                                                   [Mammillaria albidula]
                                                   [Mammillaria collina]
                                                   [Mammillaria conspicua]
                                                   [Mammillaria donatii]
                                                   [Mammillaria haageana subsp. acultzingensis]
                                                   [Mammillaria haageana subsp. conspicua]
                                                   [Mammillaria haageana subsp. elegans]
                                                   [Mammillaria haageana subsp. haageana]
                                                   [Mammillaria haageana subsp. san-angelensis]
                                                   [Mammillaria haageana subsp. schmollii]
                                                   [Mammillaria haageana var. schmollii]
                                                   [Mammillaria meissneri]
                                                   [Mammillaria sanangelensis]
                                                   [Mammillaria vaupelii]
                                             <i>Mammillaria haasii</i>
                                             <i>Mammillaria hahniana</i>
                                                   [Mammillaria bravoae]
                                                   [Mammillaria hahniana subsp. bravoae]
                                                   [Mammillaria hahniana subsp. hahniana]
                                                   [Mammillaria hahniana subsp. mendeliana]
                                                   [Mammillaria hahniana subsp. woodsii]
                                                   [Mammillaria mendeliana]
                                                   [Mammillaria woodsii]
                                             <i>Mammillaria halbingeri</i>
                                             <i>Mammillaria heidiae</i>
                                             <i>Mammillaria hennisii</i>
                                             <i>Mammillaria hermosana</i>
                                             <i>Mammillaria hernandezii</i>
                                             <i>Mammillaria herrerae</i>
                                                   [Neomammillaria herrerae]
                                             <i>Mammillaria hertrichiana</i>
                                               <i>Mammillaria hertrichiana var. hertrichiana</i>
                                               <i>Mammillaria hertrichiana var. robustior</i>
                                             <i>Mammillaria heyderi</i>
                                                   [Mammillaria parrasensis]
                                               <i>Mammillaria heyderi subsp. gummifera</i>
                                                     [Mammillaria heyderi var. gummifera]
                                                     [Neomammillaria gummifera]
                                               <i>Mammillaria heyderi subsp. hemisphaerica</i>
                                                     [Mammillaria applanata]
                                                     [Mammillaria hemisphaerica]
                                                     [Neomammillaria applanata]
                                                     [Neomammillaria hemisphaerica]
                                               <i>Mammillaria heyderi subsp. heyderi</i>
                                                     [Neomammillaria heyderi]
                                               <i>Mammillaria heyderi var. bullingtoniana</i>
                                               <i>Mammillaria heyderi var. hemisphaerica</i>
                                               <i>Mammillaria heyderi var. heyderi</i>
                                                     [Mammillaria gummifera var. applanata]
                                                     [Mammillaria heyderi var. applanata]
                                             <i>Mammillaria huitzilopochtli</i>
                                               <i>Mammillaria huitzilopochtli subsp. huitzilopochtli</i>
                                               <i>Mammillaria huitzilopochtli subsp. niduliformis</i>
                                             <i>Mammillaria humboldtii</i>
                                             <i>Mammillaria hutchisoniana</i>
                                               <i>Mammillaria hutchisoniana subsp. hutchisoniana</i>
                                                     [Mammillaria bullardiana]
                                               <i>Mammillaria hutchisoniana subsp. louisae</i>
                                                     [Mammillaria louiseae]
                                             <i>Mammillaria insularis</i>
                                             <i>Mammillaria jaliscana</i>
                                                   [Neomammillaria jaliscana]
                                               <i>Mammillaria jaliscana subsp. jaliscana</i>
                                               <i>Mammillaria jaliscana subsp. zacatecasensis</i>
                                                     [Mammillaria zacatecasensis]
                                             <i>Mammillaria johnstonii</i>
                                             <i>Mammillaria karwinskiana</i>
                                                   [Mammillaria ebenacantha]
                                                   [Mammillaria strobilina]
                                                   [Mammillaria woburnensis]
                                                   [Neomammillaria conzattii]
                                               <i>Mammillaria karwinskiana subsp. beiselii</i>
                                                     [Mammillaria beiselii]
                                                     [Mammillaria nagliana]
                                               <i>Mammillaria karwinskiana subsp. collinsii</i>
                                                     [Mammillaria collinsii]
                                                     [Mammillaria tropica]
                                               <i>Mammillaria karwinskiana subsp. karwinskiana</i>
                                                     [Mammillaria confusa]
                                                     [Mammillaria neomystax]
                                               <i>Mammillaria karwinskiana subsp. nejapensis</i>
                                                     [Mammillaria nejapensis]
                                             <i>Mammillaria klissingiana</i>
                                                   [Mammillaria brauneana]
                                             <i>Mammillaria knippeliana</i>
                                             <i>Mammillaria kraehenbuehlii</i>
                                             <i>Mammillaria kuentziana</i>
                                             <i>Mammillaria lanata</i>
                                                   [Neomammillaria lanata]
                                             <i>Mammillaria laneusumma</i>
                                             <i>Mammillaria lasiacantha</i>
                                                   [Mammillaria lasiacantha subsp. hyalina]
                                                   [Mammillaria lasiacantha subsp. magallanii]
                                                   [Mammillaria lasiacantha var. denudata]
                                                   [Mammillaria lengdobleriana]
                                                   [Mammillaria neobertrandiana]
                                                   [Mammillaria wohlschlageri]
                                               <i>Mammillaria lasiacantha subsp. egregia</i>
                                                     [Mammillaria egregia]
                                               <i>Mammillaria lasiacantha subsp. lasiacantha</i>
                                                     [Neomammillaria denudata]
                                                     [Neomammillaria lasiacantha]
                                             <i>Mammillaria laui</i>
                                               <i>Mammillaria laui subsp. dasyacantha</i>
                                               <i>Mammillaria laui subsp. laui</i>
                                               <i>Mammillaria laui subsp. subducta</i>
                                             <i>Mammillaria leei</i>
                                             <i>Mammillaria lenta</i>
                                             <i>Mammillaria lewisiana</i>
                                                   [Mammillaria brandegeei subsp. gabbii]
                                             <i>Mammillaria linaresensis</i>
                                                   [Mammillaria melanocentra subsp. linaresensis]
                                             <i>Mammillaria lindsayi</i>
                                               <i>Mammillaria lindsayi var. robustior</i>
                                             <i>Mammillaria littoralis</i>
                                             <i>Mammillaria lloydii</i>
                                                   [Neomammillaria lloydii]
                                             <i>Mammillaria longiflora</i>
                                                   [Neomammillaria longiflora]
                                               <i>Mammillaria longiflora subsp. longiflora</i>
                                                     [Mammillaria longiflora subsp. stampferi]
                                                     [Mammillaria stampferi]
                                               <i>Mammillaria longiflora subsp. tepexicensis</i>
                                                     [Mammillaria tepexicensis]
                                             <i>Mammillaria longimamma</i>
                                                   [Dolichothele longimamma]
                                                   [Dolichothele uberiformis]
                                                   [Mammillaria longimanna]
                                                   [Mammillaria uberiformis]
                                               <i>Mammillaria longimamma var. sphaerica</i>
                                             <i>Mammillaria louisae</i>
                                             <i>Mammillaria luethyi</i>
                                             <i>Mammillaria macdougalii</i>
                                                   [Mammillaria gummifera var. hemisphaerica]
                                                   [Mammillaria gummifera var. macdougalii]
                                                   [Mammillaria gummifera]
                                                   [Mammillaria heyderi subsp. macdougalii]
                                                   [Mammillaria heyderi var. macdougalii]
                                             <i>Mammillaria macromeris</i>
                                             <i>Mammillaria magallanii</i>
                                             <i>Mammillaria magneticola</i>
                                             <i>Mammillaria magnifica</i>
                                             <i>Mammillaria magnimamma</i>
                                                   [Mammillaria bucareliensis]
                                                   [Mammillaria centricirrha]
                                                   [Mammillaria macracantha]
                                                   [Mammillaria priessnitzii]
                                                   [Mammillaria saxicola]
                                                   [Mammillaria vagaspina]
                                                   [Mammillaria vallensis]
                                                   [Mammillaria zuccariniana]
                                             <i>Mammillaria mainiae</i>
                                                   [Mammillaria mainae]
                                                   [Neomammillaria mainiae]
                                             <i>Mammillaria mammillaris</i>
                                                   [Mammillaria pseudosimplex]
                                             <i>Mammillaria marcosii</i>
                                                   [Mammillaria multihamata]
                                             <i>Mammillaria marksiana</i>
                                             <i>Mammillaria marnierana</i>
                                             <i>Mammillaria marshalliana</i>
                                             <i>Mammillaria mathildae</i>
                                             <i>Mammillaria matudae</i>
                                                   [Mammillaria compacticaulis]
                                             <i>Mammillaria mayensis</i>
                                             <i>Mammillaria mazatlanensis</i>
                                                   [Mammillaria mazatlanensis subsp. mazatlanensis]
                                                   [Mammillaria mazatlanensis subsp. patonii]
                                                   [Mammillaria patonii]
                                                   [Neomammillaria occidentalis]
                                               <i>Mammillaria mazatlanensis var. monocentra</i>
                                             <i>Mammillaria meiacantha</i>
                                                   [Mammillaria heyderi var. meiacantha]
                                             <i>Mammillaria melaleuca</i>
                                             <i>Mammillaria melanocentra</i>
                                                   [Neomammillaria runyonii]
                                               <i>Mammillaria melanocentra subsp. melanocentra</i>
                                                     [Neomammillaria melanocentra]
                                               <i>Mammillaria melanocentra subsp. rubrograndis</i>
                                                     [Mammillaria rubrograndis]
                                             <i>Mammillaria mercadensis</i>
                                             <i>Mammillaria meyranii</i>
                                             <i>Mammillaria microhelia</i>
                                                   [Mammillaria droegeana]
                                                   [Mammillaria microheliopsis]
                                             <i>Mammillaria moelleriana</i>
                                                   [Mammillaria cowperae]
                                             <i>Mammillaria monochrysacantha</i>
                                             <i>Mammillaria montensis</i>
                                               <i>Mammillaria montensis var. monocentra</i>
                                               <i>Mammillaria montensis var. montensis</i>
                                               <i>Mammillaria montensis var. quadricentra</i>
                                             <i>Mammillaria morentiniana</i>
                                             <i>Mammillaria morganiana</i>
                                             <i>Mammillaria multiceps</i>
                                             <i>Mammillaria multidigitata</i>
                                             <i>Mammillaria mystax</i>
                                                   [Mammillaria atroflorens]
                                                   [Mammillaria casoi]
                                                   [Mammillaria erythra]
                                                   [Mammillaria huajuapensis]
                                                   [Mammillaria mixtecensis]
                                             <i>Mammillaria nana</i>
                                                   [Mammillaria felipensis]
                                                   [Mammillaria monancistracantha]
                                                   [Mammillaria monancistria]
                                             <i>Mammillaria napina</i>
                                             <i>Mammillaria nazasensis</i>
                                             <i>Mammillaria neopalmeri</i>
                                                   [Mammillaria palmeri]
                                                   [Neomammillaria palmeri]
                                             <i>Mammillaria nickelsiae</i>
                                             <i>Mammillaria nivosa</i>
                                             <i>Mammillaria nunezii</i>
                                                   [Neomammillaria nunezii]
                                               <i>Mammillaria nunezii subsp. bella</i>
                                               <i>Mammillaria nunezii subsp. nunezii</i>
                                                     [Mammillaria hubertmulleri]
                                                     [Mammillaria machucae]
                                                     [Mammillaria silvatica]
                                                     [Mammillaria solisii]
                                                     [Mammillaria supraflumen]
                                                     [Mammillaria wuthenauiana]
                                             <i>Mammillaria occidentalis</i>
                                               <i>Mammillaria occidentalis var. monocentra</i>
                                             <i>Mammillaria orcuttii</i>
                                                   [Mammillaria amajacensis]
                                             <i>Mammillaria ortegae</i>
                                                   [Neomammillaria ortegae]
                                             <i>Mammillaria oteroi</i>
                                             <i>Mammillaria pachycylindrica</i>
                                                   [Mammillaria mexicensis]
                                             <i>Mammillaria pacifica</i>
                                             <i>Mammillaria painteri</i>
                                             <i>Mammillaria parkinsonii</i>
                                                   [Mammillaria auriareolis]
                                                   [Mammillaria neocrucigera]
                                                   [Mammillaria rosensis]
                                             <i>Mammillaria pectinifera</i>
                                               <i>Mammillaria pectinifera subsp. pectinifera</i>
                                               <i>Mammillaria pectinifera subsp. solisioides</i>
                                             <i>Mammillaria peninsularis</i>
                                             <i>Mammillaria pennispinosa</i>
                                               <i>Mammillaria pennispinosa subsp. nazasensis</i>
                                               <i>Mammillaria pennispinosa subsp. pennispinosa</i>
                                             <i>Mammillaria perbella</i>
                                                   [Mammillaria avila-camachoi]
                                                   [Mammillaria cadereytensis]
                                                   [Mammillaria infernillensis]
                                                   [Mammillaria queretarica]
                                             <i>Mammillaria perezdelarosae</i>
                                                   [Mammillaria perezdelarosae subsp. perezdelarosae]
                                             <i>Mammillaria petrophila</i>
                                               <i>Mammillaria petrophila subsp. arida</i>
                                                     [Neomammillaria arida]
                                               <i>Mammillaria petrophila subsp. baxteriana</i>
                                               <i>Mammillaria petrophila subsp. petrophila</i>
                                             <i>Mammillaria petterssonii</i>
                                                   [Mammillaria apozolensis]
                                                   [Mammillaria huiguerensis]
                                                   [Mammillaria obscura]
                                             <i>Mammillaria phitauiana</i>
                                             <i>Mammillaria picta</i>
                                                   [Mammillaria aurisaeta]
                                                   [Mammillaria picta subsp. picta]
                                                   [Mammillaria picta subsp. viereckii]
                                                   [Mammillaria schieliana]
                                                   [Mammillaria viereckii]
                                             <i>Mammillaria pilispina</i>
                                                   [Mammillaria rayonensis]
                                                   [Mammillaria sanluisensis]
                                                   [Mammillaria subtilis]
                                             <i>Mammillaria pitcayensis</i>
                                             <i>Mammillaria plumosa</i>
                                             <i>Mammillaria polyedra</i>
                                             <i>Mammillaria polythele</i>
                                               <i>Mammillaria polythele subsp. obconella</i>
                                                     [Mammillaria ingens]
                                               <i>Mammillaria polythele subsp. polythele</i>
                                                     [Mammillaria dolichocentra]
                                                     [Mammillaria durispina]
                                                     [Mammillaria hidalgensis]
                                                     [Mammillaria hoffmannseggii]
                                                     [Mammillaria kelleriana]
                                                     [Mammillaria neophaeacantha]
                                                     [Mammillaria nigra]
                                                     [Mammillaria oothele]
                                                     [Mammillaria polythele subsp. durispina]
                                                     [Mammillaria subdurispina]
                                                     [Mammillaria tetracantha]
                                                     [Mammillaria xochipilli]
                                                     [Neomammillaria polythele]
                                             <i>Mammillaria pottsii</i>
                                                   [Coryphantha pottsii]
                                                   [Neomammillaria pottsii]
                                             <i>Mammillaria pringlei</i>
                                                   [Mammillaria parensis]
                                                   [Neomammillaria pringlei]
                                             <i>Mammillaria prolifera</i>
                                                   [Mammillaria glomerata]
                                               <i>Mammillaria prolifera subsp. arachnoidea</i>
                                               <i>Mammillaria prolifera subsp. haitiensis</i>
                                               <i>Mammillaria prolifera subsp. prolifera</i>
                                                     [Mammillaria pusilla]
                                                     [Neomammillaria prolifera]
                                               <i>Mammillaria prolifera subsp. texana</i>
                                                     [Neomammillaria multiceps]
                                               <i>Mammillaria prolifera var. texana</i>
                                             <i>Mammillaria pseudoalamensis</i>
                                             <i>Mammillaria radiaissima</i>
                                             <i>Mammillaria rekoi</i>
                                                   [Mammillaria albrechtiana]
                                                   [Mammillaria krassuckae]
                                                   [Mammillaria mitlensis]
                                                   [Mammillaria pseudorekoi]
                                                   [Mammillaria pullihamata]
                                                   [Mammillaria sanjuanensis]
                                                   [Neomammillaria rekoi]
                                               <i>Mammillaria rekoi subsp. aureispina</i>
                                                     [Mammillaria aureispina]
                                               <i>Mammillaria rekoi subsp. leptacantha</i>
                                                     [Mammillaria leptacantha]
                                               <i>Mammillaria rekoi subsp. rekoi</i>
                                                     [Mammillaria rekoiana]
                                             <i>Mammillaria rettigiana</i>
                                                   [Mammillaria flavihamata]
                                                   [Mammillaria gilensis]
                                                   [Mammillaria posseltiana]
                                             <i>Mammillaria rhodantha</i>
                                                   [Mammillaria bonavitii]
                                                   [Mammillaria calacantha]
                                               <i>Mammillaria rhodantha subsp. fera-rubra</i>
                                                     [Mammillaria fera-rubra]
                                               <i>Mammillaria rhodantha subsp. mccartenii</i>
                                                     [Mammillaria verticealba]
                                               <i>Mammillaria rhodantha subsp. mollendorffiana</i>
                                                     [Mammillaria mollendorffiana]
                                               <i>Mammillaria rhodantha subsp. pringlei</i>
                                               <i>Mammillaria rhodantha subsp. rhodantha</i>
                                                     [Mammillaria pyrrhochracantha]
                                                     [Mammillaria rhodantha subsp. aureiceps]
                                                     [Mammillaria rhodantha var. auriceps]
                                                     [Mammillaria rutila]
                                             <i>Mammillaria robertii</i>
                                             <i>Mammillaria roseoalba</i>
                                             <i>Mammillaria rubida</i>
                                             <i>Mammillaria runyonii</i>
                                             <i>Mammillaria saboae</i>
                                               <i>Mammillaria saboae subsp. goldii</i>
                                               <i>Mammillaria saboae subsp. haudeana</i>
                                                     [Mammillaria hamuligera]
                                               <i>Mammillaria saboae subsp. saboae</i>
                                               <i>Mammillaria saboae var. goldii</i>
                                               <i>Mammillaria saboae var. haudeana</i>
                                             <i>Mammillaria sanchez-mejoradae</i>
                                             <i>Mammillaria sartorii</i>
                                                   [Mammillaria tenampensis]
                                                   [Neomammillaria tenampensis]
                                             <i>Mammillaria schiedeana</i>
                                               <i>Mammillaria schiedeana subsp. dumetorum</i>
                                               <i>Mammillaria schiedeana subsp. giselae</i>
                                               <i>Mammillaria schiedeana subsp. schiedeana</i>
                                                     [Neomammillaria schiedeana]
                                             <i>Mammillaria schumannii</i>
                                                   [Bartschella schumannii]
                                             <i>Mammillaria schwarzii</i>
                                             <i>Mammillaria scolymoides</i>
                                             <i>Mammillaria scrippsiana</i>
                                                   [Mammillaria pseudoscrippsiana]
                                                   [Neomammillaria scrippsiana]
                                             <i>Mammillaria sempervivi</i>
                                             <i>Mammillaria senilis</i>
                                                   [Mamillopsis diguetii]
                                                   [Mamillopsis senilis]
                                                   [Mammillaria diguetii]
                                             <i>Mammillaria sheldonii</i>
                                                   [Mammillaria milleri var. sheldonii]
                                             <i>Mammillaria sinistrohamata</i>
                                             <i>Mammillaria slevinii</i>
                                             <i>Mammillaria solisioides</i>
                                             <i>Mammillaria sphacelata</i>
                                               <i>Mammillaria sphacelata subsp. sphacelata</i>
                                                     [Neomammillaria sphacelata]
                                               <i>Mammillaria sphacelata subsp. viperina</i>
                                                     [Mammillaria viperina]
                                                     [Neomammillaria viperina]
                                             <i>Mammillaria sphaerica</i>
                                             <i>Mammillaria spinosissima</i>
                                                   [Mammillaria gasterantha]
                                               <i>Mammillaria spinosissima subsp. pilcayensis</i>
                                               <i>Mammillaria spinosissima subsp. spinosissima</i>
                                                     [Mammillaria atrosanguinea]
                                                     [Mammillaria tomentosa]
                                                     [Neomammillaria spinosissima]
                                               <i>Mammillaria spinosissima subsp. tepoxtlana</i>
                                             <i>Mammillaria standleyi</i>
                                                   [Mammillaria auricantha]
                                                   [Mammillaria auritricha]
                                                   [Mammillaria bellacantha]
                                                   [Mammillaria canelensis]
                                                   [Mammillaria craigii]
                                                   [Mammillaria miegiana]
                                                   [Mammillaria movensis]
                                                   [Mammillaria sonorensis]
                                                   [Mammillaria tesopacensis]
                                                   [Mammillaria xanthina]
                                                   [Neomammillaria xanthina]
                                               <i>Mammillaria standleyi var. standleyi</i>
                                             <i>Mammillaria stella-de-tacubaya</i>
                                             <i>Mammillaria subducta</i>
                                             <i>Mammillaria sulcata</i>
                                             <i>Mammillaria supertexta</i>
                                                   [Mammillaria martinezii]
                                             <i>Mammillaria surculosa</i>
                                                   [Dolichothele surculosa]
                                             <i>Mammillaria swinglei</i>
                                                   [Mammillaria inaiae]
                                             <i>Mammillaria tayloriorum</i>
                                             <i>Mammillaria tetrancistra</i>
                                                   [Mammillaria phellosperma]
                                                   [Phellosperma tetrancistra]
                                             <i>Mammillaria tezontle</i>
                                             <i>Mammillaria theresae</i>
                                             <i>Mammillaria thornberi</i>
                                               <i>Mammillaria thornberi subsp. thornberi</i>
                                               <i>Mammillaria thornberi subsp. yaquensis</i>
                                             <i>Mammillaria tobuschii</i>
                                             <i>Mammillaria tonalensis</i>
                                             <i>Mammillaria trichacantha</i>
                                             <i>Mammillaria uncinata</i>
                                             <i>Mammillaria varieaculeata</i>
                                             <i>Mammillaria verhaertiana</i>
                                             <i>Mammillaria vetula</i>
                                               <i>Mammillaria vetula subsp. gracilis</i>
                                                     [Mammillaria fragilis]
                                               <i>Mammillaria vetula subsp. vetula</i>
                                             <i>Mammillaria virginis</i>
                                             <i>Mammillaria viridiflora</i>
                                                   [Mammillaria orestera]
                                             <i>Mammillaria voburnensis</i>
                                               <i>Mammillaria voburnensis subsp. collinsii</i>
                                                     [Neomammillaria collinsii]
                                               <i>Mammillaria voburnensis subsp. eichlamii</i>
                                               <i>Mammillaria voburnensis subsp. voburnensis</i>
                                                     [Mammillaria praelii]
                                             <i>Mammillaria wagneriana</i>
                                                   [Mammillaria antesbergeriana]
                                                   [Mammillaria crassa]
                                             <i>Mammillaria weingartiana</i>
                                                   [Mammillaria unihamata]
                                             <i>Mammillaria wiesingeri</i>
                                               <i>Mammillaria wiesingeri subsp. apamensis</i>
                                               <i>Mammillaria wiesingeri subsp. wiesingeri</i>
                                             <i>Mammillaria wildii</i>
                                             <i>Mammillaria winterae</i>
                                                   [Mammillaria winteriae]
                                               <i>Mammillaria winterae subsp. aramberri</i>
                                                     [Mammillaria crassimammillis]
                                                     [Mammillaria winteriae subsp. aramberri]
                                               <i>Mammillaria winterae subsp. winterae</i>
                                                     [Mammillaria freudenbergii]
                                                     [Mammillaria winteriae subsp. winteriae]
                                                     [Mammillaria zahniana]
                                             <i>Mammillaria wrightii</i>
                                               <i>Mammillaria wrightii subsp. wrightii</i>
                                                     [Neomammillaria wrightii]
                                               <i>Mammillaria wrightii var. wilcoxii</i>
                                                     [Mammillaria meridiorosei]
                                                     [Mammillaria wilcoxii]
                                                     [Mammillaria wrightii subsp. wilcoxii]
                                               <i>Mammillaria wrightii var. wrightii</i>
                                             <i>Mammillaria xaltianguensis</i>
                                               <i>Mammillaria xaltianguensis subsp. bambusiphila</i>
                                               <i>Mammillaria xaltianguensis subsp. xaltianguensis</i>
                                             <i>Mammillaria yaquensis</i>
                                                   [Mammillaria thornberi var. yaquensis]
                                             <i>Mammillaria zeilmanniana</i>
                                             <i>Mammillaria zephyranthoides</i>
                                                   [Dolichothele zephyranthoides]
                                               <i>Mammillaria zephyranthoides subsp. heidiae</i>
                                               <i>Mammillaria zephyranthoides subsp. zephyranthoides</i>
                                             <i>Mammillaria zublerae</i>
                                                   [Mammillaria prolifera subsp. zublerae]
                                               <i>Mammillaria columbiana subsp. yucatanensis</i>
                                                     [Mammillaria jamaicensis]
                                                     [Mammillaria ruestii]
                                                     [Mammillaria yucatanensis]
                                                     [Neomammillaria yucatanensis]
                                               <i>Mammillaria decipiens subsp. camptotricha</i>
                                                     [Mammillaria camptotricha]
                                                     [Mammillaria decipiens var. camptotricha]
                                     <i>Mammilloydia</i>
                                             <i>Mammilloydia candida</i>
                                     <i>Marenopuntia</i>
                                     <i>Matucana</i>
                                             <i>Matucana aurantiaca</i>
                                               <i>Matucana aurantiaca subsp. aurantiaca</i>
                                               <i>Matucana aurantiaca subsp. currundayensis</i>
                                               <i>Matucana aurantiaca subsp. fruticosa</i>
                                               <i>Matucana aurantiaca subsp. hastifera</i>
                                               <i>Matucana aurantiaca subsp. polzii</i>
                                             <i>Matucana aureiflora</i>
                                             <i>Matucana currundayensis</i>
                                             <i>Matucana formosa</i>
                                                   [Borzicactus formosus]
                                             <i>Matucana fruticosa</i>
                                             <i>Matucana hastifera</i>
                                             <i>Matucana haynei</i>
                                               <i>Matucana haynei subsp. haynei</i>
                                                     [Borzicactus haynei]
                                                     [Borzicactus variabilis]
                                                     [Matucana cereoides]
                                                     [Matucana elongata]
                                                     [Matucana supertexta]
                                                     [Matucana variabilis]
                                               <i>Matucana haynei subsp. herzogiana</i>
                                                     [Matucana blancii]
                                                     [Matucana herzogiana]
                                                     [Matucana megalantha]
                                                     [Matucana winteri]
                                                     [Matucana yanganucensis]
                                               <i>Matucana haynei subsp. hystrix</i>
                                                     [Matucana breviflora]
                                                     [Matucana hystrix]
                                                     [Matucana multicolor]
                                               <i>Matucana haynei subsp. myriacantha</i>
                                                     [Borzicactus calocephala]
                                                     [Borzicactus myriacanthus]
                                                     [Matucana comacephala]
                                                     [Matucana crinifera]
                                                     [Matucana purpureoalba]
                                             <i>Matucana haynii</i>
                                             <i>Matucana huagalensis</i>
                                                   [Borzicactus huagalensis]
                                             <i>Matucana intertexta</i>
                                                   [Borzicactus intertextus]
                                                   [Matucana celendinensis]
                                             <i>Matucana krahnii</i>
                                                   [Borzicactus krahnii]
                                                   [Matucana calliantha]
                                             <i>Matucana madisoniorum</i>
                                                   [Borzicactus madisoniorum]
                                             <i>Matucana oreodoxa</i>
                                                   [Borzicactus oreodoxus]
                                             <i>Matucana pallarensis</i>
                                             <i>Matucana paucicostata</i>
                                                   [Borzicactus paucicostatus]
                                             <i>Matucana polzii</i>
                                             <i>Matucana pujupatii</i>
                                             <i>Matucana ritteri</i>
                                                   [Borzicactus ritteri]
                                             <i>Matucana tuberculata</i>
                                                   [Borzicactus tuberculatus]
                                                   [Matucana tuberculosa]
                                     <i>Mediocactus</i>
                                     <i>Mediolobivia</i>
                                             <i>Mediolobivia auranitida</i>
                                             <i>Mediolobivia conoidea</i>
                                             <i>Mediolobivia elegans</i>
                                             <i>Mediolobivia euanthema</i>
                                             <i>Mediolobivia neopygmaea</i>
                                             <i>Mediolobivia schmiedcheniana</i>
                                     <i>Melocactus</i>
                                           [Cactus melocactus]
                                             <i>Melocactus acispinosus</i>
                                             <i>Melocactus amethystinus</i>
                                             <i>Melocactus ammotrophus</i>
                                             <i>Melocactus andinus</i>
                                               <i>Melocactus andinus subsp. andinus</i>
                                               <i>Melocactus andinus subsp. hernandezii</i>
                                             <i>Melocactus azulensis</i>
                                             <i>Melocactus azureus</i>
                                                   [Melocactus azureus subsp. azureus]
                                                   [Melocactus krainzianus]
                                             <i>Melocactus bahiensis</i>
                                               <i>Melocactus bahiensis subsp. amethystinus</i>
                                               <i>Melocactus bahiensis subsp. bahiensis</i>
                                             <i>Melocactus bellavistensis</i>
                                               <i>Melocactus bellavistensis subsp. bellavistensis</i>
                                               <i>Melocactus bellavistensis subsp. onychacanthus</i>
                                             <i>Melocactus braunii</i>
                                             <i>Melocactus brederooianus</i>
                                             <i>Melocactus broadwayi</i>
                                                   [Cactus broadwayi]
                                             <i>Melocactus caroli-linnaei</i>
                                                   [Melocactus melocactus]
                                             <i>Melocactus concinnus</i>
                                                   [Melocactus axiniphorus]
                                                   [Melocactus pruinosus]
                                                   [Melocactus pulvinosus]
                                                   [Melocactus robustispinus]
                                             <i>Melocactus conoideus</i>
                                             <i>Melocactus cremnophilus</i>
                                             <i>Melocactus curvispinus</i>
                                                   [Cactus oaxacensis]
                                               <i>Melocactus curvispinus subsp. caesius</i>
                                                     [Melocactus caesius]
                                                     [Melocactus lobelii]
                                               <i>Melocactus curvispinus subsp. curvispinus</i>
                                                     [Melocactus guitartii]
                                                     [Melocactus loboguerreroi]
                                                     [Melocactus maxonii]
                                                     [Melocactus oaxacensis]
                                                     [Melocactus obtusipetalus]
                                                     [Melocactus ruestii subsp. maxonii]
                                                     [Melocactus ruestii subsp. oaxacensis]
                                                     [Melocactus ruestii subsp. sanctae-rosae]
                                                     [Melocactus salvador]
                                               <i>Melocactus curvispinus subsp. dawsonii</i>
                                                     [Melocactus dawsonii subsp. dawsonii]
                                               <i>Melocactus curvispinus subsp. koolwijkianus</i>
                                                     [Melocactus guitarti]
                                                     [Melocactus holguinensis]
                                                     [Melocactus laui]
                                               <i>Melocactus curvispinus subsp. lobelii</i>
                                                     [Melocactus cephalenoplus]
                                             <i>Melocactus dawsonii</i>
                                             <i>Melocactus deinacanthus</i>
                                             <i>Melocactus delessertianus</i>
                                             <i>Melocactus depressus</i>
                                             <i>Melocactus ellemeetii</i>
                                             <i>Melocactus ernestii</i>
                                               <i>Melocactus ernestii subsp. ernestii</i>
                                                     [Melocactus oreas subsp. ernestii]
                                               <i>Melocactus ernestii subsp. longicarpus</i>
                                                     [Melocactus deinacanthus subsp. florschuetzianus]
                                                     [Melocactus deinacanthus subsp. longicarpus]
                                                     [Melocactus oreas var. longispinus]
                                             <i>Melocactus erythracanthus</i>
                                             <i>Melocactus erythracantus</i>
                                             <i>Melocactus estevesii</i>
                                             <i>Melocactus ferreophilus</i>
                                                   [Melocactus azureus subsp. ferreophilus]
                                             <i>Melocactus florschuetzianus</i>
                                             <i>Melocactus florschutzianus</i>
                                             <i>Melocactus glaucescens</i>
                                             <i>Melocactus glauxianus</i>
                                             <i>Melocactus grisoleoviridis</i>
                                             <i>Melocactus guanensis</i>
                                             <i>Melocactus harlowii</i>
                                                   [Melocactus acunae]
                                                   [Melocactus evae]
                                                   [Melocactus perezassoi]
                                             <i>Melocactus hernandezii</i>
                                             <i>Melocactus inconcinnus</i>
                                             <i>Melocactus interpositus</i>
                                             <i>Melocactus intortus</i>
                                                   [Cactus intortus]
                                                   [Melocactus communis]
                                                   [Melocactus coronatus]
                                               <i>Melocactus intortus subsp. domingensis</i>
                                                     [Melocactus intortus subsp. dominguensis]
                                                     [Melocactus pedernalensis]
                                               <i>Melocactus intortus subsp. intortus</i>
                                             <i>Melocactus lanssensianus</i>
                                             <i>Melocactus lemairei</i>
                                                   [Melocactus hispaniolicus]
                                             <i>Melocactus lensselinkianus</i>
                                             <i>Melocactus levitestatus</i>
                                                   [Melocactus diersianus]
                                                   [Melocactus rubrispinus]
                                                   [Melocactus securituberculatus]
                                                   [Melocactus uebelmannii]
                                                   [Melocactus warasii]
                                             <i>Melocactus longicarpus</i>
                                             <i>Melocactus longispinus</i>
                                             <i>Melocactus macracanthos</i>
                                                   [Melocactus citrispinus]
                                                   [Melocactus inclinatus]
                                             <i>Melocactus matanzanus</i>
                                                   [Melocactus actinacanthus]
                                             <i>Melocactus mazelianus</i>
                                             <i>Melocactus montanus</i>
                                             <i>Melocactus mulequensis</i>
                                             <i>Melocactus nagyi</i>
                                             <i>Melocactus neomontanus</i>
                                             <i>Melocactus neryi</i>
                                                   [Melocactus guaricensis]
                                                   [Melocactus schulzianus]
                                             <i>Melocactus nitidus</i>
                                             <i>Melocactus onychacanthus</i>
                                             <i>Melocactus oreas</i>
                                               <i>Melocactus oreas subsp. cremnophilus</i>
                                               <i>Melocactus oreas subsp. oreas</i>
                                             <i>Melocactus pachyacanthus</i>
                                               <i>Melocactus pachyacanthus subsp. pachyacanthus</i>
                                               <i>Melocactus pachyacanthus subsp. viridis</i>
                                             <i>Melocactus paucispinus</i>
                                             <i>Melocactus peruvianus</i>
                                                   [Melocactus amstutziae]
                                                   [Melocactus fortalezensis]
                                                   [Melocactus huallancaensis]
                                                   [Melocactus jansenianus]
                                                   [Melocactus trujilloensis]
                                                   [Melocactus unguispinus]
                                             <i>Melocactus praerupticola</i>
                                             <i>Melocactus rubrisaetosus</i>
                                             <i>Melocactus ruestii</i>
                                             <i>Melocactus salvadorensis</i>
                                             <i>Melocactus schatzlii</i>
                                               <i>Melocactus schatzlii subsp. chicamochae</i>
                                                     [Melocactus andinus subsp. soatensis]
                                               <i>Melocactus schatzlii subsp. schatzlii</i>
                                             <i>Melocactus smithii</i>
                                                   [Melocactus roraimensis]
                                             <i>Melocactus stramineus</i>
                                             <i>Melocactus violaceus</i>
                                                   [Melocactus melocactoides]
                                               <i>Melocactus violaceus subsp. margaritaceus</i>
                                               <i>Melocactus violaceus subsp. ritteri</i>
                                               <i>Melocactus violaceus subsp. violaceus</i>
                                                     [Melocactus violaceus subsp. natalensis]
                                             <i>Melocactus x albicephalus</i>
                                             <i>Melocactus x horridus</i>
                                             <i>Melocactus zehntneri</i>
                                                   [Melocactus arcuatispinus]
                                                   [Melocactus canescens]
                                                   [Melocactus curvicornis]
                                                   [Melocactus giganteus]
                                                   [Melocactus helvolilanthus]
                                                   [Melocactus macrodiscus]
                                                   [Melocactus saxicola]
                                                   [Melocactus zehntneri subsp. canescens]
                                     <i>Micranthocereus</i>
                                             <i>Micranthocereus albicephalus</i>
                                                   [Micranthocereus aureispinus]
                                                   [Micranthocereus monteazulensis]
                                             <i>Micranthocereus auriazureus</i>
                                             <i>Micranthocereus dolichospermaticus</i>
                                             <i>Micranthocereus estevesii</i>
                                             <i>Micranthocereus flaviflorus</i>
                                                   [Micranthocereus densiflorus]
                                                   [Micranthocereus flaviflorus subsp. densiflorus]
                                                   [Micranthocereus uilianus]
                                             <i>Micranthocereus polyanthus</i>
                                               <i>Micranthocereus polyanthus subsp. alvinii</i>
                                               <i>Micranthocereus polyanthus subsp. polyanthus</i>
                                             <i>Micranthocereus purpureus</i>
                                                   [Micranthocereus haematocarpus]
                                                   [Micranthocereus ruficeps]
                                             <i>Micranthocereus streckeri</i>
                                             <i>Micranthocereus violaciflorus</i>
                                     <i>Micropuntia</i>
                                             <i>Micropuntia pulchella</i>
                                                   [Micropuntia barkleyana]
                                                   [Micropuntia brachyrhopalica]
                                                   [Micropuntia spectatissima]
                                     <i>Mila</i>
                                             <i>Mila caespitosa</i>
                                                   [Mila fortalezensis]
                                               <i>Mila caespitosa subsp. caespitosa</i>
                                                     [Mila alboareolata]
                                                     [Mila caespitosa subsp. nealeana]
                                                     [Mila densiseta]
                                                     [Mila kubeana]
                                                     [Mila lurinensis]
                                               <i>Mila caespitosa subsp. pugionifera</i>
                                                     [Mila albisaetacens]
                                                     [Mila cereoides]
                                                     [Mila colorea]
                                                     [Mila pugionifera]
                                                     [Mila sublanata]
                                             <i>Mila nealeana</i>
                                     <i>Miqueliopuntia</i>
                                             <i>Miqueliopuntia miquelii</i>
                                     <i>Mitrocereus</i>
                                             <i>Mitrocereus fulviceps</i>
                                     <i>Monvillea</i>
                                             <i>Monvillea alticostata</i>
                                             <i>Monvillea amazonica</i>
                                             <i>Monvillea apoloensis</i>
                                             <i>Monvillea ballivianii</i>
                                             <i>Monvillea campinensis</i>
                                             <i>Monvillea cavendishii</i>
                                             <i>Monvillea jaenensis</i>
                                             <i>Monvillea leucantha</i>
                                             <i>Monvillea maritima</i>
                                             <i>Monvillea piedadensis</i>
                                             <i>Monvillea smithiana</i>
                                     <i>Morangaya</i>
                                             <i>Morangaya pensilis</i>
                                                   [Echinocereus pensilis]
                                     <i>Myrtgerocactus</i>
                                             <i>Myrtgerocactus lindsayi</i>
                                     <i>Myrtillocactus</i>
                                             <i>Myrtillocactus cochal</i>
                                             <i>Myrtillocactus eichlamii</i>
                                             <i>Myrtillocactus geometrizans</i>
                                                   [Myrtillocactus grandiareolatus]
                                                   [Myrtillocactus pugionifer]
                                             <i>Myrtillocactus schenckii</i>
                                     <i>Navajoa</i>
                                     <i>Neobesseya</i>
                                             <i>Neobesseya notesteinii</i>
                                                   [Mammillaria notesteinii]
                                     <i>Neobuxbaumia</i>
                                             <i>Neobuxbaumia euphorbioides</i>
                                                   [Carnegiea euphorbioides var. olfersii]
                                             <i>Neobuxbaumia macrocephala</i>
                                                   [Carnegiea macrocephala]
                                                   [Cephalocereus macrocephalus]
                                                   [Mitrocereus ruficeps]
                                                   [Pachycereus ruficeps]
                                             <i>Neobuxbaumia mezcalaensis</i>
                                                   [Carnegiea mezcalaensis]
                                                   [Carnegiea nova]
                                                   [Neobuxbaumia multiareolata]
                                             <i>Neobuxbaumia polylopha</i>
                                                   [Carnegiea polylopha]
                                                   [Cephalocereus polylophus]
                                             <i>Neobuxbaumia sanchezmejoradae</i>
                                                   [Carnegiea laui]
                                                   [Neobuxbaumia laui]
                                             <i>Neobuxbaumia scoparia</i>
                                                   [Carnegiea scoparia]
                                                   [Cephalocereus scoparius]
                                             <i>Neobuxbaumia squamulosa</i>
                                                   [Carnegiea squamulosa]
                                             <i>Neobuxbaumia tetetzo</i>
                                                   [Carnegiea tetetzo]
                                                   [Cephalocereus tetazo]
                                                   [Neobuxbaumia tetetzo var. nuda]
                                     <i>Neocardenasia</i>
                                             <i>Neocardenasia herzogiana</i>
                                     <i>Neodawsonia</i>
                                     <i>Neoevansia</i>
                                             <i>Neoevansia diguetii</i>
                                     <i>Neolloydia</i>
                                             <i>Neolloydia conoidea</i>
                                                   [Echinocactus conoideus]
                                                   [Mammillaria ceratites]
                                                   [Mammillaria conoidea]
                                                   [Neolloydia texensis]
                                                   [Pediocactus conoideus]
                                               <i>Neolloydia conoidea var. conoidea</i>
                                             <i>Neolloydia gautii</i>
                                             <i>Neolloydia mariposensis</i>
                                             <i>Neolloydia matehualensis</i>
                                             <i>Neolloydia warnockii</i>
                                     <i>Neolobivia</i>
                                             <i>Neolobivia winteriana</i>
                                     <i>Neomammillaria</i>
                                             <i>Neomammillaria albicans</i>
                                             <i>Neomammillaria fraileana</i>
                                             <i>Neomammillaria johnstonii</i>
                                             <i>Neomammillaria milleri</i>
                                             <i>Neomammillaria missouriensis</i>
                                             <i>Neomammillaria nivosa</i>
                                             <i>Neomammillaria peninsularis</i>
                                             <i>Neomammillaria saetigera</i>
                                             <i>Neomammillaria standleyi</i>
                                             <i>Neomammillaria swinglei</i>
                                             <i>Neomammillaria viridiflora</i>
                                     <i>Neoporteria</i>
                                             <i>Neoporteria carrizalensis</i>
                                             <i>Neoporteria eriocephala</i>
                                             <i>Neoporteria fusca</i>
                                             <i>Neoporteria hankeana</i>
                                             <i>Neoporteria huascensis</i>
                                             <i>Neoporteria vallenarensis</i>
                                             <i>Neoporteria woutersiana</i>
                                     <i>Neoraimondia</i>
                                             <i>Neoraimondia arequipensis</i>
                                                   [Neoraimondia aticensis]
                                                   [Neoraimondia macrostibas]
                                                   [Neoraimondia roseiflora]
                                               <i>Neoraimondia arequipensis var. aticensis</i>
                                             <i>Neoraimondia herzogiana</i>
                                     <i>Neowerdermannia</i>
                                             <i>Neowerdermannia chilensis</i>
                                                   [Neowerdermannia chilensis subsp. chilensis]
                                                   [Neowerdermannia chilensis subsp. peruviana]
                                                   [Neowerdermannia peruviana]
                                                   [Sulcorebutia chilensis]
                                                   [Weingartia chilensis]
                                             <i>Neowerdermannia vorwerkii</i>
                                                   [Sulcorebutia vorwerkii]
                                                   [Weingartia vorwerkii]
                                     <i>Nopalea</i>
                                             <i>Nopalea auberi</i>
                                                   [Opuntia lutea]
                                             <i>Nopalea cochenillifera</i>
                                                   [Cactus cochenilifer]
                                                   [Cactus cochenillifera]
                                                   [Opuntia cochinellifera]
                                             <i>Nopalea dejecta</i>
                                             <i>Nopalea gaumeri</i>
                                             <i>Nopalea guatemalensis</i>
                                             <i>Nopalea hondurensis</i>
                                                   [Opuntia hondurensis]
                                             <i>Nopalea inaperta</i>
                                                   [Opuntia inaperta]
                                             <i>Nopalea karwinskiana</i>
                                             <i>Nopalea lutea</i>
                                     <i>Nopalxochia</i>
                                     <i>Notocactus</i>
                                             <i>Notocactus acutus</i>
                                             <i>Notocactus campestrensis</i>
                                             <i>Notocactus glaucinus</i>
                                             <i>Notocactus harmonianus</i>
                                             <i>Notocactus ibicuiensis</i>
                                             <i>Notocactus incomptus</i>
                                             <i>Notocactus mammulosus</i>
                                             <i>Notocactus minusculus</i>
                                             <i>Notocactus neobuenekeri</i>
                                             <i>Notocactus securituberculatus</i>
                                             <i>Notocactus succineus</i>
                                             <i>Notocactus tabularis</i>
                                             <i>Notocactus villa-velhensis</i>
                                     <i>Nyctocereus</i>
                                             <i>Nyctocereus serpentinus</i>
                                     <i>Obregonia</i>
                                             <i>Obregonia denegrii</i>
                                                   [Strombocactus denegrii]
                                     <i>Oehmea</i>
                                             <i>Oehmea beneckei</i>
                                     <i>Opuntia</i>
                                             <i>Opuntia abyssi</i>
                                             <i>Opuntia acaulis</i>
                                                   [Consolea acaulis]
                                             <i>Opuntia aciculata</i>
                                                   [Opuntia engelmannii var. aciculata]
                                             <i>Opuntia alamosensis</i>
                                             <i>Opuntia alta</i>
                                             <i>Opuntia amarilla</i>
                                             <i>Opuntia ammophila</i>
                                                   [Opuntia compressa var. ammophila]
                                             <i>Opuntia amyclaea</i>
                                             <i>Opuntia anacantha</i>
                                                   [Opuntia canina]
                                                   [Opuntia discolor]
                                                   [Opuntia grosseana]
                                                   [Opuntia roborensis]
                                                   [Platyopuntia discolor]
                                                   [Platyopuntia kiska-loro]
                                                   [Platyopuntia retrorsa]
                                               <i>Opuntia anacantha var. retrorsa</i>
                                                     [Opuntia retrorsa]
                                               <i>Opuntia anacantha var. utkilio</i>
                                                     [Opuntia utkilio]
                                             <i>Opuntia angustata</i>
                                             <i>Opuntia anteojoensis</i>
                                             <i>Opuntia antillana</i>
                                             <i>Opuntia apurimacensis</i>
                                             <i>Opuntia arcei</i>
                                             <i>Opuntia arechavaletae</i>
                                             <i>Opuntia articulata</i>
                                             <i>Opuntia assumptionis</i>
                                                   [Opuntia viridirubra subsp. viridirubra]
                                                   [Opuntia viridirubra]
                                                   [Platyopuntia viridirubra]
                                             <i>Opuntia atrispina</i>
                                             <i>Opuntia atropes</i>
                                             <i>Opuntia auberi</i>
                                             <i>Opuntia aurantiaca</i>
                                                   [Opuntia montevideensis]
                                             <i>Opuntia aurea</i>
                                                   [Opuntia basilaris var. aurea]
                                                   [Opuntia erinacea var. aurea]
                                             <i>Opuntia aureispina</i>
                                                   [Opuntia macrocentra var. aureispina]
                                             <i>Opuntia austrina</i>
                                                   [Opuntia compressa var. austrina]
                                                   [Opuntia eburnispina]
                                                   [Opuntia humifusa var. austrina]
                                                   [Opuntia pollardii]
                                                   [Opuntia polycarpa]
                                             <i>Opuntia azurea</i>
                                               <i>Opuntia azurea var. azurea</i>
                                               <i>Opuntia azurea var. diplopurpurea</i>
                                               <i>Opuntia azurea var. discolor</i>
                                               <i>Opuntia azurea var. parva</i>
                                             <i>Opuntia bakeri</i>
                                             <i>Opuntia basilaris</i>
                                                   [Opuntia humistrata]
                                               <i>Opuntia basilaris basilaris</i>
                                               <i>Opuntia basilaris var. basilaris</i>
                                                     [Opuntia basilaris var. ramosa]
                                                     [Opuntia basilaris var. whitneyana]
                                                     [Opuntia brachyclada subsp. humistrata]
                                                     [Opuntia whitneyana var. albiflora]
                                                     [Opuntia whitneyana]
                                               <i>Opuntia basilaris var. brachyclada</i>
                                                     [Opuntia brachyclada]
                                               <i>Opuntia basilaris var. heilii</i>
                                               <i>Opuntia basilaris var. longiareolata</i>
                                                     [Opuntia longiareolata]
                                               <i>Opuntia basilaris var. treleasei</i>
                                             <i>Opuntia bensonii</i>
                                             <i>Opuntia bisetosa</i>
                                             <i>Opuntia boldinghii</i>
                                             <i>Opuntia bonplandii</i>
                                             <i>Opuntia borinquensis</i>
                                                   [Opuntia boringuensis]
                                             <i>Opuntia bradtiana</i>
                                             <i>Opuntia brasiliensis</i>
                                             <i>Opuntia bravoana</i>
                                             <i>Opuntia burrageana</i>
                                             <i>Opuntia caboensis</i>
                                             <i>Opuntia caesia</i>
                                             <i>Opuntia calmalliana</i>
                                             <i>Opuntia campii</i>
                                             <i>Opuntia cantabrigiensis</i>
                                             <i>Opuntia caracassana</i>
                                                   [Opuntia pennellii]
                                                   [Opuntia salvadorensis]
                                             <i>Opuntia cardenche</i>
                                             <i>Opuntia castillae</i>
                                             <i>Opuntia cespitosa</i>
                                             <i>Opuntia chaffeyi</i>
                                             <i>Opuntia chiangiana</i>
                                             <i>Opuntia chihuahuensis</i>
                                             <i>Opuntia chisosensis</i>
                                                   [Opuntia lindheimeri var. chisosensis]
                                             <i>Opuntia chlorotica</i>
                                                   [Opuntia chlorotica var. chlorotica]
                                             <i>Opuntia clarkiorum</i>
                                             <i>Opuntia clavata</i>
                                             <i>Opuntia clavellina</i>
                                             <i>Opuntia cochenillifera</i>
                                                   [Cactus cochenillifer]
                                                   [Cactus cochenilliferus]
                                             <i>Opuntia cochinelifera</i>
                                             <i>Opuntia cochinelifera x phaeacantha</i>
                                             <i>Opuntia cochinera</i>
                                             <i>Opuntia columbiana</i>
                                                   [Opuntia erinacea var. columbiana]
                                             <i>Opuntia comonduensis</i>
                                             <i>Opuntia cordobensis</i>
                                                   [Opuntia cordodensis]
                                             <i>Opuntia crassa</i>
                                             <i>Opuntia crystalenia</i>
                                             <i>Opuntia cubensis</i>
                                             <i>Opuntia curassavica</i>
                                             <i>Opuntia cylindrica</i>
                                             <i>Opuntia cymochila</i>
                                             <i>Opuntia darrahiana</i>
                                             <i>Opuntia deamii</i>
                                             <i>Opuntia decumbens</i>
                                                   [Opuntia puberula]
                                             <i>Opuntia dejecta</i>
                                             <i>Opuntia delaetiana</i>
                                             <i>Opuntia delicata</i>
                                             <i>Opuntia depressa</i>
                                             <i>Opuntia deserta</i>
                                             <i>Opuntia dillenii</i>
                                                   [Cactus dillenii]
                                                   [Opuntia atrocapensis]
                                                   [Opuntia nitens]
                                                   [Opuntia stricta var. dillenii]
                                                   [Opuntia tunoidea]
                                                   [Opuntia zebrina]
                                             <i>Opuntia diploursina</i>
                                             <i>Opuntia discata</i>
                                                   [Opuntia microcarpa]
                                             <i>Opuntia diversispina</i>
                                             <i>Opuntia durangensis</i>
                                             <i>Opuntia durangensis x wilcoxii</i>
                                             <i>Opuntia echios</i>
                                               <i>Opuntia echios var. barringtonensis</i>
                                               <i>Opuntia echios var. echios</i>
                                               <i>Opuntia echios var. gigantea</i>
                                               <i>Opuntia echios var. inermis</i>
                                               <i>Opuntia echios var. zacana</i>
                                             <i>Opuntia edwardsii</i>
                                             <i>Opuntia eichlamii</i>
                                             <i>Opuntia ekmanii</i>
                                             <i>Opuntia elata</i>
                                                   [Opuntia alko-tuna]
                                                   [Opuntia atrovirens]
                                                   [Opuntia canterae]
                                                   [Opuntia cardiosperma]
                                                   [Opuntia chakensis]
                                                   [Opuntia cochabambensis]
                                                   [Opuntia cognata]
                                                   [Opuntia limitata]
                                                   [Opuntia mieckleyi]
                                                   [Opuntia prasina]
                                                   [Opuntia pyrrhantha]
                                                   [Opuntia viridirubra subsp. rubrogemmia]
                                                   [Opuntia vitelliniflora subsp. interjecta]
                                                   [Opuntia vitelliniflora subsp. vitelliniflora]
                                                   [Opuntia vitelliniflora]
                                                   [Platyopuntia cardiosperma]
                                                   [Platyopuntia cognata]
                                                   [Platyopuntia interjecta]
                                                   [Platyopuntia limitata]
                                                   [Platyopuntia pyrrhantha]
                                                   [Platyopuntia rubrogemmia]
                                                   [Platyopuntia vitelliniflora]
                                             <i>Opuntia elatior</i>
                                                   [Opuntia bergeriana]
                                             <i>Opuntia elizondoana</i>
                                             <i>Opuntia ellisiana</i>
                                                   [Opuntia x ellisiana]
                                             <i>Opuntia emoryi</i>
                                             <i>Opuntia engelmannii</i>
                                                   [Opuntia subarmata]
                                               <i>Opuntia engelmannii engelmannii</i>
                                               <i>Opuntia engelmannii subsp. engelmannii</i>
                                                     [Opuntia magnarenensis]
                                               <i>Opuntia engelmannii subsp. lindheimeri</i>
                                               <i>Opuntia engelmannii var. cuija</i>
                                                     [Opuntia lindheimeri var. cuija]
                                               <i>Opuntia engelmannii var. cujia</i>
                                                     [Opuntia cuija]
                                               <i>Opuntia engelmannii var. discata</i>
                                               <i>Opuntia engelmannii var. engelmannii</i>
                                                     [Opuntia dillei]
                                                     [Opuntia lindheimeri var. tricolor]
                                                     [Opuntia megacarpa]
                                                     [Opuntia occidentalis var. megacarpa]
                                                     [Opuntia phaeacantha var. discata]
                                                     [Opuntia tardospina]
                                                     [Opuntia tricolor]
                                                     [Opuntia x subarmata]
                                               <i>Opuntia engelmannii var. flavescens</i>
                                                     [Opuntia flavescens]
                                               <i>Opuntia engelmannii var. flavispina</i>
                                                     [Opuntia phaeacantha var. flavispina]
                                               <i>Opuntia engelmannii var. flexispina</i>
                                               <i>Opuntia engelmannii var. flexospina</i>
                                               <i>Opuntia engelmannii var. laevis</i>
                                               <i>Opuntia engelmannii var. lindheimeri</i>
                                                     [Opuntia engelmannii var. alta]
                                                     [Opuntia engelmannii var. cacanapa]
                                                     [Opuntia engelmannii var. dulcis]
                                                     [Opuntia engelmannii var. texana]
                                                     [Opuntia gomei]
                                                     [Opuntia haematocarpa]
                                                     [Opuntia lindheimeri lindheimeri]
                                                     [Opuntia lindheimeri var. lehmannii]
                                                     [Opuntia lindheimeri var. lindheimeri]
                                                     [Opuntia lindheimeri]
                                                     [Opuntia sinclairii]
                                                     [Opuntia squarrosa]
                                               <i>Opuntia engelmannii var. linguiformis</i>
                                                     [Opuntia lindheimeri var. linguiformis]
                                                     [Opuntia linguiformis]
                                               <i>Opuntia engelmannii var. rastrera</i>
                                               <i>Opuntia engelmannii var. wootonii</i>
                                             <i>Opuntia engelmannii x phaeacantha</i>
                                             <i>Opuntia eocarpa</i>
                                             <i>Opuntia estevesii</i>
                                             <i>Opuntia excelsa</i>
                                             <i>Opuntia feroacantha</i>
                                             <i>Opuntia ficus-indica</i>
                                                   [Cactus ficus-indica]
                                                   [Opuntia compressa]
                                                   [Opuntia incarnadilla]
                                                   [Opuntia maxima]
                                                   [Opuntia opuntia]
                                                   [Opuntia paraguayensis]
                                                   [Opuntia vulgaris]
                                                   [Platyopuntia apurimacensis]
                                                   [Platyopuntia cordobensis]
                                               <i>Opuntia ficus-indica var. amyclaea</i>
         Opuntia ficus-indica x Opuntia robusta
                                             <i>Opuntia filipendula</i>
                                             <i>Opuntia flexospina</i>
                                             <i>Opuntia fragilis</i>
                                               <i>Opuntia fragilis var. brachyarthra</i>
                                                     [Opuntia brachyarthra]
                                                     [Opuntia fragilis subsp. brachyarthra]
                                               <i>Opuntia fragilis var. fragilis</i>
                                                     [Cactus fragilis]
                                                     [Opuntia fragilis var. denudata]
                                                     [Opuntia schweriniana]
                                             <i>Opuntia fuliginosa</i>
                                             <i>Opuntia galapageia</i>
                                               <i>Opuntia galapageia subsp. zacana</i>
                                                     [Opuntia zacana]
                                               <i>Opuntia galapageia var. galapageia</i>
                                               <i>Opuntia galapageia var. macrocarpa</i>
                                               <i>Opuntia galapageia var. profusa</i>
                                             <i>Opuntia glomerata</i>
                                             <i>Opuntia gorda</i>
                                             <i>Opuntia gosseliniana</i>
                                                   [Opuntia chlorotica var. gosseliniana]
                                                   [Opuntia chlorotica var. gossrliniana]
                                                   [Opuntia violacea var. gosseliniana]
                                             <i>Opuntia grahami</i>
                                             <i>Opuntia grandis</i>
                                             <i>Opuntia guatemalensis</i>
                                             <i>Opuntia guilanchi</i>
                                             <i>Opuntia helleri</i>
                                             <i>Opuntia hitchcockii</i>
                                             <i>Opuntia howeyi</i>
                                             <i>Opuntia huajuapensis</i>
                                             <i>Opuntia humifusa</i>
                                                   [Cactus humifusus]
                                                   [Opuntia calcicola]
                                                   [Opuntia compressa var. allairei]
                                                   [Opuntia compressa var. fuscoatra]
                                                   [Opuntia compressa var. microsperma]
                                                   [Opuntia cumulicola]
                                                   [Opuntia fuscoatra]
                                                   [Opuntia humifusa subsp. humifusa]
                                                   [Opuntia rafinesquei]
                                               <i>Opuntia humifusa var. ammophila</i>
                                               <i>Opuntia humifusa var. humifusa</i>
                                                     [Opuntia compressa var. compressa]
                                             <i>Opuntia hyptiacantha</i>
                                                   [Opuntia chavena]
                                                   [Opuntia cretochaeta]
                                                   [Opuntia matudae]
                                                   [Opuntia nigrita]
                                             <i>Opuntia impedata</i>
                                             <i>Opuntia inaequilateralis</i>
                                             <i>Opuntia inermis</i>
                                             <i>Opuntia insularis</i>
                                             <i>Opuntia intricata</i>
                                             <i>Opuntia ithypetala</i>
                                             <i>Opuntia jaliscana</i>
                                             <i>Opuntia joconostle</i>
                                             <i>Opuntia karwinskiana</i>
                                             <i>Opuntia keyensis</i>
                                             <i>Opuntia kleiniae</i>
                                             <i>Opuntia lagunae</i>
                                             <i>Opuntia lasiacantha</i>
                                                   [Opuntia chaetocarpa]
                                                   [Opuntia rzedowskii]
                                             <i>Opuntia lata</i>
                                             <i>Opuntia leucotricha</i>
                                                   [Opuntia pailana]
                                                   [Opuntia pyriformis]
                                             <i>Opuntia littoralis</i>
                                               <i>Opuntia littoralis var. austrocalifornica</i>
                                               <i>Opuntia littoralis var. littoralis</i>
                                                     [Opuntia engelmannii var. littoralis]
                                                     [Opuntia occidentalis var. littoralis]
                                               <i>Opuntia littoralis var. piercei</i>
                                               <i>Opuntia littoralis var. vaseyi</i>
                                                     [Opuntia covillei var. piercei]
                                                     [Opuntia covillei]
                                                     [Opuntia occidentalis var. covillei]
                                                     [Opuntia occidentalis var. vaseyi]
                                                     [Opuntia vaseyi]
                                             <i>Opuntia lloydii</i>
                                             <i>Opuntia longispina</i>
                                             <i>Opuntia macdougaliana</i>
                                             <i>Opuntia macracantha</i>
                                             <i>Opuntia macrocentra</i>
                                                   [Opuntia mackensenii var. minor]
                                               <i>Opuntia macrocentra var. macrocentra</i>
                                                     [Opuntia violacea var. castetteri]
                                                     [Opuntia violacea var. macrocentra]
                                                     [Opuntia violacea var. violacea]
                                                     [Opuntia violacea]
                                               <i>Opuntia macrocentra var. minor</i>
                                             <i>Opuntia macrorhiza</i>
                                                   [Opuntia fusiformis]
                                                   [Opuntia roseana]
                                               <i>Opuntia macrorhiza macrorhiza</i>
                                               <i>Opuntia macrorhiza subsp. macrorhiza</i>
                                               <i>Opuntia macrorhiza subsp. pottsii</i>
                                             <i>Opuntia maxoni</i>
                                             <i>Opuntia maxonii</i>
                                             <i>Opuntia megacantha</i>
                                             <i>Opuntia megapotamica</i>
                                                   [Opuntia pituitosa]
                                                   [Opuntia salagria]
                                                   [Platyopuntia pituitosa]
                                             <i>Opuntia megarhiza</i>
                                                   [Opuntia megarrhiza]
                                             <i>Opuntia megasperma</i>
                                               <i>Opuntia megasperma var. megasperma</i>
                                               <i>Opuntia megasperma var. mesophytica</i>
                                               <i>Opuntia megasperma var. orientalis</i>
                                             <i>Opuntia mesacantha</i>
                                               <i>Opuntia mesacantha mesacantha</i>
                                               <i>Opuntia mesacantha subsp. mesacantha</i>
                                             <i>Opuntia microdasys</i>
                                                   [Opuntia macrocalyx]
                                             <i>Opuntia monacantha</i>
                                                   [Opuntia monocantha]
                                                   [Platyopuntia brunneogemmia]
                                             <i>Opuntia moniliformis</i>
                                             <i>Opuntia nemoralis</i>
                                             <i>Opuntia neochrysacantha</i>
                                             <i>Opuntia neorutila</i>
                                             <i>Opuntia nuda</i>
                                                   [Nopalea nuda]
                                             <i>Opuntia ochrocentra</i>
                                             <i>Opuntia orbiculata</i>
                                             <i>Opuntia oricola</i>
                                             <i>Opuntia pachona</i>
                                             <i>Opuntia pachyrrhiza</i>
                                             <i>Opuntia parviclada</i>
                                             <i>Opuntia penicilligera</i>
                                             <i>Opuntia pescorvae</i>
                                             <i>Opuntia phaeacantha</i>
                                                   [Opuntia camanchica]
                                                   [Opuntia charlestonensis]
                                                   [Opuntia phaeacantha var. camanchica]
                                               <i>Opuntia phaeacantha var. castorea</i>
                                               <i>Opuntia phaeacantha var. laevis</i>
                                                     [Opuntia laevis]
                                               <i>Opuntia phaeacantha var. major</i>
                                                     [Opuntia arizonica]
                                                     [Opuntia blakeana]
                                                     [Opuntia canada]
                                                     [Opuntia confusa]
                                                     [Opuntia engelmannii var. cycloides]
                                                     [Opuntia expansa]
                                                     [Opuntia gilvescens]
                                                     [Opuntia gregoriana]
                                                     [Opuntia mojavensis]
                                                     [Opuntia phaeacantha var. brunnea]
                                                     [Opuntia phaeacantha var. mojavensis]
                                                     [Opuntia woodsii]
                                               <i>Opuntia phaeacantha var. phaeacantha</i>
                                                     [Opuntia dulcis]
                                                     [Opuntia phaeacantha var. nigricans]
                                               <i>Opuntia phaeacantha var. piercei</i>
                                               <i>Opuntia phaeacantha var. spinosibacca</i>
                                               <i>Opuntia phaeacantha var. wootonii</i>
                                             <i>Opuntia pilifera</i>
                                             <i>Opuntia pinkavae</i>
                                                   [Opuntia basilaris var. woodburyi]
                                             <i>Opuntia pisciformis</i>
                                             <i>Opuntia pittieri</i>
                                                   [Opuntia bella]
                                             <i>Opuntia polyacantha</i>
                                                   [Opuntia heacockul]
                                                   [Opuntia missouriensis]
                                                   [Opuntia polyacantha var. watsonii]
                                                   [Opuntia sphaerocarpa]
                                               <i>Opuntia polyacantha polyacantha</i>
                                               <i>Opuntia polyacantha subsp. polyacantha</i>
                                               <i>Opuntia polyacantha var. arenaria</i>
                                                     [Opuntia arenaria]
                                                     [Opuntia polyacantha subsp. arenaria]
                                               <i>Opuntia polyacantha var. erinacea</i>
                                                     [Opuntia erinacea var. erinacea]
                                                     [Opuntia erinacea var. paucispina]
                                                     [Opuntia erinacea var. ursina]
                                                     [Opuntia erinacea]
                                                     [Opuntia polyacantha subsp. erinacea]
                                                     [Opuntia rubrifolia]
                                                     [Opuntia ursina]
                                                     [Opuntia xerocarpa]
                                               <i>Opuntia polyacantha var. hystericina</i>
                                               <i>Opuntia polyacantha var. hystricina</i>
                                                     [Opuntia erinacea var. hystricina]
                                                     [Opuntia erinacea var. utahensis]
                                                     [Opuntia erinacea var. xanthostemma]
                                                     [Opuntia hystricina]
                                                     [Opuntia rhodantha var. spinosior]
                                                     [Opuntia rhodantha]
                                                     [Opuntia sphaerocarpa var. utahensis]
                                               <i>Opuntia polyacantha var. juniperina</i>
                                                     [Opuntia juniperina]
                                               <i>Opuntia polyacantha var. nicholii</i>
                                                     [Opuntia hystricina var. nicholii]
                                                     [Opuntia nicholii]
                                               <i>Opuntia polyacantha var. polyacantha</i>
                                                     [Opuntia heacockiae]
                                               <i>Opuntia polyacantha var. rufispina</i>
                                                     [Opuntia rutila]
                                               <i>Opuntia polyacantha var. schweriniana</i>
                                               <i>Opuntia polyacantha var. trichophora</i>
                                                     [Opuntia missouriensis var. trichophora]
                                                     [Opuntia trichophora]
                                             <i>Opuntia pottsii</i>
                                                   [Opuntia macrorhiza var. pottsii]
                                             <i>Opuntia preciadoae</i>
                                             <i>Opuntia procumbens</i>
                                             <i>Opuntia pubescens</i>
                                                   [Corynopuntia dumetorum]
                                                   [Opuntia depauperata]
                                                   [Opuntia dumetorum]
                                                   [Opuntia infesta]
                                                   [Platyopuntia dumetorum]
                                                   [Platyopuntia infesta]
                                                   [Platyopuntia nana]
                                             <i>Opuntia pumila</i>
                                             <i>Opuntia pusilla</i>
                                                   [Cactus pusillus]
                                                   [Opuntia drummondii]
                                                   [Opuntia tracyi]
                                             <i>Opuntia pycnantha</i>
                                             <i>Opuntia quimilo</i>
                                                   [Opuntia distans]
                                                   [Platyopuntia quimilo]
                                             <i>Opuntia quitensis</i>
                                                   [Opuntia macbridei]
                                                   [Platyopuntia quitensis]
                                             <i>Opuntia rastrera</i>
                                                   [Opuntia lucens]
                                             <i>Opuntia repens</i>
                                             <i>Opuntia rileyi</i>
                                             <i>Opuntia ritteri</i>
                                             <i>Opuntia riviereana</i>
                                             <i>Opuntia robinsonii</i>
                                             <i>Opuntia robusta</i>
                                                   [Opuntia guerrana]
                                                   [Opuntia larreyi]
                                               <i>Opuntia robusta var. larreyi</i>
                                             <i>Opuntia rufida</i>
                                                   [Opuntia microdasys var. rufida]
                                             <i>Opuntia rugosa</i>
                                             <i>Opuntia salmiana</i>
                                                   [Platyopuntia salmiana]
                                             <i>Opuntia sanfelipensis</i>
                                             <i>Opuntia sanguinea</i>
                                             <i>Opuntia santa-rita</i>
                                                   [Opuntia chlorotica var. santa-rita]
                                                   [Opuntia violacea var. santa-rita]
                                             <i>Opuntia santarita</i>
                                             <i>Opuntia saxicola</i>
                                             <i>Opuntia scheeri</i>
                                                   [Opuntia scheerii]
                                             <i>Opuntia schickendantzii</i>
                                                   [Opuntia colubrina]
                                                   [Opuntia conjungens]
                                             <i>Opuntia schumannii</i>
                                             <i>Opuntia securigera</i>
                                             <i>Opuntia semispinosa</i>
                                             <i>Opuntia serpentina</i>
                                             <i>Opuntia setispina</i>
                                             <i>Opuntia setocarpa</i>
                                             <i>Opuntia sierralagunensis</i>
                                             <i>Opuntia soederstromiana</i>
                                             <i>Opuntia sphaerica</i>
                                             <i>Opuntia spinosibacca</i>
                                             <i>Opuntia spinulifera</i>
                                                   [Opuntia heliabravoana]
                                                   [Opuntia oligacantha]
                                             <i>Opuntia spraguei</i>
                                             <i>Opuntia stanleyi</i>
                                               <i>Opuntia stanleyi var. parishii</i>
                                             <i>Opuntia stenarthra</i>
                                             <i>Opuntia stenochila</i>
                                             <i>Opuntia stenopetala</i>
                                                   [Opuntia glaucescens]
                                                   [Opuntia stenopetala var. inerme]
                                               <i>Opuntia stenopetala var. stenopetala</i>
                                             <i>Opuntia streptacantha</i>
                                             <i>Opuntia stricta</i>
                                                   [Cactus strictus]
                                                   [Consolea bahamana]
                                                   [Opuntia bahamana]
                                                   [Opuntia bartramii]
                                                   [Opuntia bentonii]
                                                   [Opuntia macrantha]
                                                   [Opuntia magnifica]
                                                   [Opuntia stricta subsp. esparzae]
                                                   [Opuntia stricta var. stricta]
                                                   [Opuntia subsphaerocarpa]
                                             <i>Opuntia strigil</i>
                                               <i>Opuntia strigil var. flexospina</i>
                                             <i>Opuntia strobiliformis</i>
                                             <i>Opuntia subulata</i>
                                             <i>Opuntia sulphurea</i>
                                                   [Opuntia sulphurea subsp. brachyacantha]
                                                   [Opuntia sulphurea subsp. spinibarbis]
                                                   [Opuntia sulphurea subsp. sulphurea]
                                                   [Platyopuntia brachyacantha]
                                                   [Platyopuntia spinibarbis]
                                               <i>Opuntia sulphurea var. pampeana</i>
                                                     [Opuntia brunnescens]
                                             <i>Opuntia superbospina</i>
                                                   [Opuntia phaeacantha var. superbospina]
                                             <i>Opuntia tapona</i>
                                             <i>Opuntia taylorii</i>
                                             <i>Opuntia tehuacana</i>
                                             <i>Opuntia tehuantepecana</i>
                                                   [Opuntia nejapensis]
                                             <i>Opuntia testudinis</i>
                                             <i>Opuntia tezontepecana</i>
                                             <i>Opuntia tomentella</i>
                                             <i>Opuntia tomentosa</i>
                                                   [Opuntia icterica]
                                                   [Opuntia micrarthra]
                                                   [Opuntia sarca]
                                             <i>Opuntia tortispina</i>
                                                   [Opuntia macrorhiza var. macrorhiza]
                                             <i>Opuntia toumeyi</i>
                                             <i>Opuntia treleasei</i>
                                             <i>Opuntia triacantha</i>
                                                   [Cactus triacanthos]
                                                   [Cactus triacanthus]
                                                   [Opuntia abjecta]
                                                   [Opuntia militaris]
                                             <i>Opuntia tuna</i>
                                                   [Cactus tuna]
                                                   [Opuntia jamaicensis]
                                             <i>Opuntia turbinata</i>
                                             <i>Opuntia turgida</i>
                                             <i>Opuntia undulata</i>
                                             <i>Opuntia valida</i>
                                             <i>Opuntia velutina</i>
                                                   [Opuntia affinis]
                                             <i>Opuntia viridiflora</i>
                                             <i>Opuntia wentiana</i>
                                             <i>Opuntia wigginsii</i>
                                             <i>Opuntia wilcoxii</i>
                                             <i>Opuntia wootonii</i>
                                             <i>Opuntia x aequatorialis</i>
                                             <i>Opuntia x andersonii</i>
                                             <i>Opuntia x bernichiana</i>
                                             <i>Opuntia x carstenii</i>
                                             <i>Opuntia x charlestonensis</i>
                                             <i>Opuntia x chlorotica</i>
                                             <i>Opuntia x columbiana</i>
                                             <i>Opuntia x cubensis</i>
                                             <i>Opuntia x demissa</i>
                                             <i>Opuntia x edwardsii</i>
                                             <i>Opuntia x fosbergii</i>
                                             <i>Opuntia x lucayana</i>
                                             <i>Opuntia x occidentalis</i>
                                             <i>Opuntia x rooneyi</i>
                                             <i>Opuntia x spinosibacca</i>
                                             <i>Opuntia x vaseyi</i>
                                                   [Opuntia mesacantha var. vaseyi]
                                             <i>Opuntia x wootonii</i>
                                             <i>Opuntia zamudioi</i>
                                             <i>Opuntia zuniensis</i>
                                             <i>Opuntia × charlestonensis</i>
                                                   [Opuntia phaeacantha var. charlestonensis]
                                             <i>Opuntia × occidentalis</i>
                                               <i>Opuntia occidentalis var. piercei</i>
                                             <i>Opuntia ×curvispina</i>
                                                   [Opuntia curvospina]
                                                   [Opuntia littoralis var. martiniana]
                                                   [Opuntia macrocentra var. martiniana]
                                                   [Opuntia ×martiniana]
                                             <i>Opuntia ×demissa</i>
                                             <i>Opuntia ×occidentalis</i>
                                               <i>Opuntia mesacantha subsp. lata</i>
                                                     [Opuntia macrarthra]
                              Opuntioideae
                                     <i>Oreocereus</i>
                                           [Oreocereus tacnaensis]
                                             <i>Oreocereus celsianus</i>
                                                   [Borzicactus celsianus]
                                                   [Borzicactus fossulatus]
                                                   [Oreocereus maximus]
                                                   [Oreocereus neocelsianus]
                                             <i>Oreocereus doelzianus</i>
                                                   [Borzicactus doelzianus]
                                               <i>Oreocereus doelzianus subsp. calvus</i>
                                               <i>Oreocereus doelzianus subsp. doelzianus</i>
                                                     [Morawetzia doelziana]
                                               <i>Oreocereus doelzianus subsp. sericatus</i>
                                             <i>Oreocereus hempelianus</i>
                                                   [Oreocereus australis]
                                             <i>Oreocereus leucotrichus</i>
                                                   [Borzicactus hendriksenianus]
                                                   [Borzicactus leucotrichus]
                                                   [Oreocereus hendriksenianus]
                                                   [Oreocereus ritteri]
                                                   [Oreocereus varicolor]
                                                   [Oreocereus variicolor]
                                             <i>Oreocereus pseudofossulatus</i>
                                                   [Cleistocactus fossulatus]
                                                   [Oreocereus fossulatus]
                                             <i>Oreocereus trollii</i>
                                                   [Borzicactus trollii]
                                                   [Oreocereus crassiniveus]
                                     <i>Oroya</i>
                                             <i>Oroya borchersii</i>
                                             <i>Oroya peruviana</i>
                                                   [Oroya baumannii]
                                                   [Oroya gibbosa]
                                                   [Oroya laxiareolata]
                                                   [Oroya neoperuviana]
                                                   [Oroya subocculta]
                                     <i>Ortegocactus</i>
                                             <i>Ortegocactus macdougallii</i>
                                                   [Neobesseya macdougallii]
                                     <i>Pacherocactus</i>
                                             <i>x Pacherocactus orcuttii</i>
                                                   [Pachycereus orcuttii]
                                     <i>Pachgerocereus</i>
                                             <i>Pachgerocereus orcuttii</i>
                                     <i>Pachycereus</i>
                                             <i>Pachycereus fulviceps</i>
                                                   [Carnegiea fulviceps]
                                                   [Cephalocereus fulviceps]
                                                   [Pseudomitrocereus fulviceps]
                                             <i>Pachycereus gatesii</i>
                                                   [Lophocereus gatesii]
                                             <i>Pachycereus gaumeri</i>
                                                   [Pachycereus foetidus]
                                                   [Pterocereus gaumeri subsp. foetidus]
                                             <i>Pachycereus grandis</i>
                                             <i>Pachycereus hollianus</i>
                                                   [Lemaireocereus hollianus]
                                             <i>Pachycereus lepidanthus</i>
                                                   [Escontria lepidantha]
                                             <i>Pachycereus marginatus</i>
                                             <i>Pachycereus militaris</i>
                                                   [Cephalocereus militaris]
                                                   [Mitrocereus militaris]
                                             <i>Pachycereus pecten-aboriginum</i>
                                                   [Pachycereus pecten-aboriginum subsp. tehuantepecanus]
                                                   [Pachycereus tehuantepecanus]
                                             <i>Pachycereus pringlei</i>
                                                   [Pachycereus calvus]
                                             <i>Pachycereus schottii</i>
                                                   [Cereus schottii]
                                                   [Lophocereus mieckleyanus]
                                                   [Lophocereus sargentianus]
                                                   [Lophocereus schottii var. tenuis]
                                                   [Lophocereus schottii]
                                                   <i>Pachycereus schottii f. monstrosus</i>
                                               <i>Pachycereus schottii var. australis</i>
                                                     [Lophocereus schottii var. australis]
                                               <i>Pachycereus schottii var. schottii</i>
                                                     [Cereus schottii var. schottii]
                                                     [Lophocereus schottii var. schottii]
                                             <i>Pachycereus tepamo</i>
                                             <i>Pachycereus weberi</i>
                                                   [Lemaireocereus weberi]
                                                   [Pachycereus gigas]
                                                   [Stenocereus weberi]
                                     <i>Parodia</i>
                                           [Parodia curvispina]
                                             <i>Parodia alacriportana</i>
                                                   [Notocactus alacriportanus]
                                                   [Notocactus brevihamatus]
                                                   [Notocactus catarinensis]
                                                   [Parodia alacriportana subsp. alacriportana]
                                                   [Parodia alacriportana subsp. brevihamata]
                                                   [Parodia alacriportana subsp. buenekeri]
                                                   [Parodia alacriportana subsp. catarinensis]
                                                   [Parodia buenekeri]
                                                   [Parodia catarinensis]
                                             <i>Parodia allosiphon</i>
                                                   [Notocactus allosiphon]
                                             <i>Parodia arnostiana</i>
                                                   [Notocactus arnostianus]
                                             <i>Parodia aureicentra</i>
                                                   [Parodia muhrii]
                                                   [Parodia rauschii]
                                                   [Parodia variicolor]
                                             <i>Parodia ayopayana</i>
                                                   [Parodia borealis]
                                                   [Parodia buxbaumiana]
                                                   [Parodia comosa]
                                                   [Parodia cotacajensis]
                                                   [Parodia echinus]
                                                   [Parodia elata]
                                                   [Parodia macednosa]
                                                   [Parodia miguillensis]
                                                   [Parodia pseudoayopayana]
                                             <i>Parodia buiningii</i>
                                                   [Notocactus buiningii]
                                             <i>Parodia carambeiensis</i>
                                                   [Notocactus carambeiensis]
                                                   [Notocactus villa-velhensis var. carambeiensis]
                                             <i>Parodia chrysacanthion</i>
                                                   [Parodia saint-pieana]
                                             <i>Parodia columnaris</i>
                                                   [Parodia legitima]
                                             <i>Parodia comarapana</i>
                                                   [Parodia mairanana]
                                                   [Parodia neglecta]
                                                   [Parodia neglectoides]
                                             <i>Parodia commutans</i>
                                                   [Parodia maxima]
                                                   [Parodia obtusa]
                                             <i>Parodia concinna</i>
                                                   [Frailea caespitosa]
                                                   [Malacocarpus tabularis]
                                                   [Notocactus agnetae]
                                                   [Notocactus apricus]
                                                   [Notocactus blaauwianus]
                                                   [Notocactus brederooianus]
                                                   [Notocactus caespitosus]
                                                   [Notocactus concinnus]
                                                   [Notocactus eremiticus]
                                                   [Notocactus gibberulus]
                                                   [Notocactus joadii]
                                                   [Notocactus multicostatus]
                                                   [Notocactus olimarensis]
                                                   [Notocactus rubrigemmatus]
                                                   [Parodia caespitosa]
                                                   [Parodia concinna subsp. agnetae]
                                                   [Parodia concinna subsp. blaauwiana]
                                                   [Parodia concinna subsp. blauuwiana]
                                                   [Parodia concinna subsp. concinna]
                                                   [Parodia tabularis subsp. bommeljei]
                                                   [Parodia tabularis subsp. tabularis]
                                             <i>Parodia crassigibba</i>
                                                   [Notocactus arachnitis]
                                                   [Notocactus crassigibbus]
                                                   [Notocactus meonacanthus]
                                                   [Notocactus uebelmannianus var. pleiocephalus]
                                                   [Notocactus uebelmannianus]
                                                   [Parodia meonacantha]
                                                   [Parodia werneri subsp. pleicephala]
                                                   [Parodia werneri subsp. pleiocephala]
                                                   [Parodia werneri subsp. werneri]
                                                   [Parodia werneri]
                                             <i>Parodia erinacea</i>
                                                   [Malacocarpus erinaceus]
                                                   [Malacocarpus pauciareolatus]
                                                   [Malacocarpus tephracanthus]
                                                   [Notocactus acuatus]
                                                   [Notocactus sellowii]
                                                   [Parodia sellowii]
                                                   [Wigginsia acuata]
                                                   [Wigginsia corynodes]
                                                   [Wigginsia courantii]
                                                   [Wigginsia leucocarpa]
                                                   [Wigginsia macrocantha]
                                                   [Wigginsia macrogona]
                                                   [Wigginsia sellowii]
                                                   [Wigginsia stegmannii]
                                                   [Wigginsia tephracantha]
                                                   [Wigginsia vorwerkiana]
                                             <i>Parodia erubescens</i>
                                                   [Echinocactus erubescens]
                                                   [Notocactus erubescens]
                                                   [Notocactus schlosseri]
                                             <i>Parodia formosa</i>
                                                   [Parodia bellavistana]
                                                   [Parodia carapariana]
                                                   [Parodia cardenasii]
                                                   [Parodia chaetocarpa]
                                                   [Parodia chirimoyarana]
                                                   [Parodia pachysa]
                                                   [Parodia parvula]
                                                   [Parodia purpureo-aurea]
                                                   [Parodia pusilla]
                                                   [Parodia setispina]
                                                   [Parodia tillii]
                                                   [Parodia winbergii]
                                             <i>Parodia fusca</i>
                                                   [Notocactus fuscus]
                                             <i>Parodia gibbulosoides</i>
                                                   [Parodia elachista]
                                                   [Parodia exquisita]
                                                   [Parodia gibbulosa]
                                                   [Parodia minuta]
                                                   [Parodia punae]
                                                   [Parodia zecheri]
                                             <i>Parodia haselbergii</i>
                                                   [Notocactus haselbergii]
                                               <i>Parodia haselbergii subsp. graessneri</i>
                                                     [Notocactus graessneri]
                                                     [Parodia elachisantha]
                                                     [Parodia graessneri]
                                               <i>Parodia haselbergii subsp. haselbergii</i>
                                             <i>Parodia hausteiniana</i>
                                                   [Parodia lauii]
                                             <i>Parodia herteri</i>
                                                   [Notocactus herteri]
                                                   [Notocactus pseudoherteri]
                                             <i>Parodia horstii</i>
                                                   [Notocactus horstii]
                                                   [Notocactus purpureus]
                                             <i>Parodia langsdorffii</i>
                                                   [Notocactus leprosorum]
                                                   [Notocactus longispinus]
                                                   [Notocactus polyacanthus]
                                                   [Notocactus prolifer]
                                                   [Notocactus pulvinatus]
                                                   [Parodia langsdorfii]
                                                   [Wigginsia langsdorffii]
                                                   [Wigginsia leprosorum]
                                                   [Wigginsia longispina]
                                                   [Wigginsia polyacantha]
                                                   [Wigginsia prolifera]
                                             <i>Parodia leninghausii</i>
                                                   [Notocactus leninghausii]
                                             <i>Parodia linkii</i>
                                                   [Notocactus linkii]
                                             <i>Parodia maassii</i>
                                                   [Parodia bermejoensis]
                                                   [Parodia haageana]
                                                   [Parodia lamprospina]
                                                   [Parodia suprema]
                                                   [Parodia thieleana]
                                             <i>Parodia magnifica</i>
                                                   [Notocactus magnificus]
                                             <i>Parodia malyana</i>
                                             <i>Parodia mammulosa</i>
                                                   [Malacocarpus mammulosus]
                                                   [Notocactus cristatoides]
                                                   [Notocactus erythracanthus]
                                                   [Notocactus floricomus]
                                                   [Notocactus hypocrateriformis]
                                                   [Notocactus macambarensis]
                                                   [Notocactus megalanthus]
                                                   [Notocactus paulus]
                                                   [Notocactus ritterianus]
                                                   [Notocactus roseoluteus]
                                                   [Notocactus submammulosus]
                                                   [Parodia mammulosa subsp. brasiliensis]
                                                   [Parodia mammulosa subsp. erythracantha]
                                                   [Parodia mammulosa subsp. mammulosa]
                                                   [Parodia mammulosa subsp. submammulosa]
                                                   [Parodia submammulosa subsp. minor]
                                                   [Parodia submammulosa]
                                             <i>Parodia microsperma</i>
                                                   [Echinocactus microspermus]
                                               <i>Parodia microsperma subsp. horrida</i>
                                                     [Parodia atroviridis]
                                                     [Parodia dextrohamata]
                                                     [Parodia heteracantha]
                                                     [Parodia horrida]
                                                     [Parodia kilianana]
                                                     [Parodia lohaniana]
                                                     [Parodia rigida]
                                                     [Parodia superba]
                                               <i>Parodia microsperma subsp. microsperma</i>
                                                     [Parodia aconquijaensis]
                                                     [Parodia albofuscata]
                                                     [Parodia amambayensis]
                                                     [Parodia argerichiana]
                                                     [Parodia aureispina]
                                                     [Parodia betaniana]
                                                     [Parodia campestra]
                                                     [Parodia capillitaensis]
                                                     [Parodia catamarcensis]
                                                     [Parodia chlorocarpa]
                                                     [Parodia fechseri]
                                                     [Parodia fusco-viridis]
                                                     [Parodia glischrocarpa]
                                                     [Parodia grandiflora]
                                                     [Parodia herzogii]
                                                     [Parodia hummeliana]
                                                     [Parodia malyana var. igneuiflora]
                                                     [Parodia mercedesiana]
                                                     [Parodia mesembrina]
                                                     [Parodia minuscula]
                                                     [Parodia mutabilis]
                                                     [Parodia nana]
                                                     [Parodia rigidispina]
                                                     [Parodia rubellihamata]
                                                     [Parodia rubriflora]
                                                     [Parodia rubristaminea]
                                                     [Parodia sanguiniflora]
                                                     [Parodia scopaoides]
                                                     [Parodia setifera]
                                                     [Parodia spanisa]
                                                     [Parodia tafiensis]
                                                     [Parodia talaensis]
                                                     [Parodia tuberculosi-costata]
                                                     [Parodia tucumanensis]
                                                     [Parodia uebelmanniana]
                                                     [Parodia weberiana]
                                             <i>Parodia mueller-melchersii</i>
                                                   [Notocactus eugeniae]
                                                   [Notocactus gutierrezii]
                                                   [Notocactus mueller-melchersii]
                                                   [Notocactus roseiflorus]
                                                   [Notocactus rutilans]
                                                   [Notocactus veenianus]
                                                   [Notocactus winkleri]
                                                   [Parodia mammulosa subsp. eugeniae]
                                                   [Parodia mueller-melchersii subsp. gutierrezii]
                                                   [Parodia mueller-melchersii subsp. mueller-melchersii]
                                                   [Parodia mueller-melchersii subsp. winkleri]
                                                   [Parodia rutilans subsp. rutilans]
                                                   [Parodia rutilans subsp. veeniana]
                                                   [Parodia rutilans]
                                             <i>Parodia muricata</i>
                                                   [Notocactus laetevirens]
                                                   [Notocactus laetivirens]
                                                   [Notocactus muricatus]
                                             <i>Parodia neoarechavaletae</i>
                                                   [Notocactus maldonadensis]
                                                   [Wigginsia arechavaletae]
                                             <i>Parodia neohorstii</i>
                                                   [Notocactus neohorstii]
                                                   [Wigginsia horstii]
                                             <i>Parodia nigrispina</i>
                                             <i>Parodia nivosa</i>
                                                   [Parodia faustiana]
                                                   [Parodia uhligiana]
                                             <i>Parodia nothominuscula</i>
                                             <i>Parodia nothorauschii</i>
                                                   [Notocactus rauschii]
                                                   [Notocactus spinibarbis]
                                             <i>Parodia ocampoi</i>
                                                   [Parodia compressa]
                                             <i>Parodia otaviana</i>
                                             <i>Parodia ottonis</i>
                                                   [Malacocarpus ottonis]
                                                   [Notocactus ottonis]
                                                   [Notocactus ruoffii]
                                                   [Notocactus tenuispinus]
                                                   [Notocactus uruguayus]
                                                   [Parodia paraguayensis]
                                               <i>Parodia ottonis subsp. horstii</i>
                                               <i>Parodia ottonis subsp. ottonis</i>
                                                     [Notocactus arechavaletae]
                                                     [Notocactus grandiensis]
                                             <i>Parodia oxycostata</i>
                                                   [Notocactus oxycostatus]
                                               <i>Parodia oxycostata subsp. gracilis</i>
                                               <i>Parodia oxycostata subsp. oxycostata</i>
                                             <i>Parodia penicillata</i>
                                                   [Notocactus permutatus]
                                                   [Parodia permutata]
                                             <i>Parodia prestoensis</i>
                                             <i>Parodia procera</i>
                                                   [Parodia andreaeoides]
                                                   [Parodia echinopsoides]
                                                   [Parodia gracilis]
                                                   [Parodia lychnosa]
                                                   [Parodia perplexa]
                                                   [Parodia pseudoprocera]
                                                   [Parodia riograndensis]
                                                   [Parodia subtilihamata]
                                                   [Parodia tredecimcostata]
                                             <i>Parodia rechensis</i>
                                                   [Notocactus rechensis]
                                             <i>Parodia ritteri</i>
                                                   [Parodia agasta]
                                                   [Parodia aglaisma]
                                                   [Parodia belliata]
                                                   [Parodia camargensis]
                                                   [Parodia camblayana]
                                                   [Parodia carrerana]
                                                   [Parodia castanea]
                                                   [Parodia cintiensis]
                                                   [Parodia fulvispina]
                                                   [Parodia roseoalba]
                                                   [Parodia rostrum-sperma]
                                                   [Parodia rubida]
                                                   [Parodia splendens]
                                                   [Parodia tojoensis]
                                             <i>Parodia rudibuenekeri</i>
                                                   [Notocactus glomeratus]
                                                   [Notocactus rudibuenekeri]
                                                   [Parodia rudibuenekeri subsp. glomerata]
                                                   [Parodia rudibuenekeri subsp. rudibuenekeri]
                                             <i>Parodia schumanniana</i>
                                                   [Notocactus amplicostatus]
                                                   [Parodia ampliocostata]
                                                   [Parodia grossei]
                                               <i>Parodia schumanniana subsp. claviceps</i>
                                                     [Parodia claviceps]
                                               <i>Parodia schumanniana subsp. schumanniana</i>
                                                     [Notocactus schumannianus]
                                             <i>Parodia schwebsiana</i>
                                                   [Parodia applanata]
                                                   [Parodia minima]
                                                   [Parodia salmonea]
                                             <i>Parodia scopa</i>
                                                   [Malacocarpus scopa]
                                                   [Notocactus scopa]
                                               <i>Parodia scopa subsp. marchesii</i>
                                               <i>Parodia scopa subsp. neobuenekeri</i>
                                               <i>Parodia scopa subsp. scopa</i>
                                               <i>Parodia scopa subsp. succinea</i>
                                             <i>Parodia stockingeri</i>
                                                   [Notocactus stockingeri]
                                             <i>Parodia stuemeri</i>
                                                   [Parodia carminata]
                                                   [Parodia friciana]
                                                   [Parodia gutekunstiana]
                                                   [Parodia jujuyana]
                                                   [Parodia pseudostuemeri]
                                                   [Parodia rubricentra]
                                                   [Parodia scoparia]
                                                   [Parodia setosa]
                                                   [Parodia tilcarensis]
                                             <i>Parodia subterranea</i>
                                                   [Parodia culpinensis]
                                                   [Parodia miranda]
                                                   [Parodia occulta]
                                                   [Parodia pseudosubterranea]
                                                   [Parodia subterrranea]
                                                   [Parodia zaletaewana]
                                             <i>Parodia succinea</i>
                                             <i>Parodia tabularis</i>
                                             <i>Parodia taratensis</i>
                                                   [Parodia bilbaoensis]
                                                   [Parodia krahnii]
                                             <i>Parodia tenuicylindrica</i>
                                                   [Notocactus minimus]
                                                   [Notocactus tenuicylindricus]
                                             <i>Parodia tuberculata</i>
                                                   [Parodia firmissima]
                                                   [Parodia idiosa]
                                                   [Parodia multicostata]
                                                   [Parodia otuyensis]
                                                   [Parodia quechua]
                                                   [Parodia sotomayorensis]
                                                   [Parodia stereospina]
                                                   [Parodia sucrensis]
                                                   [Parodia tarabucina]
                                                   [Parodia yamparaezi]
                                                   [Parodia yamparaezii]
                                             <i>Parodia turbinata</i>
                                                   [Notocactus calvescens]
                                                   [Notocactus schaeferianus]
                                                   [Wigginsia schaeferiana]
                                                   [Wigginsia turbinata]
                                             <i>Parodia turecekiana</i>
                                             <i>Parodia warasii</i>
                                                   [Notocactus warasii]
                                             <i>Parodia werdermanniana</i>
                                                   [Notocactus ferrugineus]
                                                   [Notocactus memorialis]
                                                   [Notocactus vanvlietii]
                                                   [Notocactus werdermannianus]
                                     <i>Pediocactus</i>
                                             <i>Pediocactus bradyi</i>
                                                   [Pediocactus bradyi subsp. bradyi]
                                                   [Pediocactus simpsonii subsp. bradyi]
                                                   [Toumeya bradyi]
                                             <i>Pediocactus despainii</i>
                                                   [Pediocactus bradyi subsp. despainii]
                                                   [Pediocactus simpsonii var. despainii]
                                             <i>Pediocactus glaucus</i>
                                             <i>Pediocactus knowltonii</i>
                                                   [Pediocactus simpsonii var. knowltonii]
                                             <i>Pediocactus knuthianus</i>
                                             <i>Pediocactus nigrispinus</i>
                                                   [Pediocactus nigrispinus subsp. beastonii]
                                                   [Pediocactus nigrispinus subsp. nigrispinus]
                                                   [Pediocactus nigrispinus subsp. puebloensis]
                                                   [Pediocactus nigrispinus var. beastonii]
                                                   [Pediocactus simpsonii var. nigrispinus]
                                             <i>Pediocactus paradinei</i>
                                                   [Pediocactus simpsonii var. paradinei]
                                             <i>Pediocactus parviflorus</i>
                                               <i>Pediocactus parviflorus subsp. havasupaiensis</i>
                                             <i>Pediocactus peeblesianus</i>
                                                   [Echinocactus peeblesianus]
                                                   [Navajoa peeblesiana]
                                                   [Navajoa peeblesianus]
                                                   [Pediocactus peeblesianus var. maianus]
                                                   [Toumeya peeblesiana]
                                                   [Toumeya peeblesianus]
                                                   [Utahia peeblesiana]
                                                   [Utahia peeblesianus]
                                               <i>Pediocactus peeblesianus subsp. fickeiseniae</i>
                                                     [Pediocactus peeblesianus var. fickeiseniae]
                                               <i>Pediocactus peeblesianus subsp. fickeiseniorum</i>
                                                     [Navajoa fickeisenii]
                                                     [Navajoa peeblesiana subsp. fickeisenii]
                                                     [Navajoa peeblesiana var. fickeisenii]
                                                     [Pediocactus peeblesianus var. fickeisenii]
                                                     [Toumeya fickeisenii]
                                               <i>Pediocactus peeblesianus subsp. peeblesianus</i>
                                                     [Navajoa peeblesiana subsp. menzelii]
                                                     [Pediocactus peeblesianus var. peeblesianus]
                                             <i>Pediocactus sileri</i>
                                                   [Echinocactus sileri]
                                                   [Utahia sileri]
                                             <i>Pediocactus simpsonii</i>
                                                   [Mammillaria purpusii]
                                                   [Pediocactus hermannii]
                                                   [Pediocactus nigrispinus subsp. indranus]
                                                   [Pediocactus robustior]
                                                   [Pediocactus simpsonii subsp. bensonii]
                                                   [Pediocactus simpsonii subsp. idahoensis]
                                                   [Pediocactus simpsonii subsp. indranus]
                                                   [Pediocactus simpsonii subsp. robustior]
                                                   [Pediocactus simpsonii subsp. simpsonii]
                                                   [Pediocactus simpsonii var. indranus]
                                               <i>Pediocactus simpsonii var. minor</i>
                                               <i>Pediocactus simpsonii var. robustior</i>
                                               <i>Pediocactus simpsonii var. simpsonii</i>
                                                     [Echinocactus simpsonii var. robustior]
                                                     [Echinocactus simpsonii]
                                             <i>Pediocactus winkleri</i>
                                                   [Pediocactus bradyi subsp. winkleri]
                                                   [Pediocactus simpsonii var. winkleri]
                                             <i>Pediocactus ysabelae</i>
                                     <i>Pelecyphora</i>
                                             <i>Pelecyphora aselliformis</i>
                                             <i>Pelecyphora chihuahuensis</i>
                                               <i>Pelecyphora chihuahuensis subsp. chihuahuensis</i>
                                                     [Cactus strobiliformis]
                                             <i>Pelecyphora missouriensis</i>
                                               <i>Pelecyphora missouriensis subsp. missouriensis</i>
                                                     [Mammillaria wissmannii]
                                             <i>Pelecyphora sneedii</i>
                                               <i>Pelecyphora sneedii subsp. orcuttii</i>
                                                     [Coryphantha sneedii var. organensis]
                                                     [Coryphantha sneedii var. sandbergii]
                                               <i>Pelecyphora sneedii subsp. sneedii</i>
                                                     [Escobaria sneedii var. albicolumnaria]
                                             <i>Pelecyphora strobiliformis</i>
                                                   [Ariocarpus strobiliformis]
                                             <i>Pelecyphora tuberculosa</i>
                                                   [Coryphantha tuberculosa var. varicolor]
                                     <i>Peniocereus</i>
                                           [Cereus greggii var. aboriginum]
                                             <i>Peniocereus castellae</i>
                                             <i>Peniocereus chiapensis</i>
                                             <i>Peniocereus cuixmalensis</i>
                                             <i>Peniocereus fosterianus</i>
                                             <i>Peniocereus greggii</i>
                                                   [Peniocereus greggii subsp. greggii]
                                               <i>Peniocereus greggii var. greggii</i>
                                                     [Cereus greggii var. greggii]
                                                     [Cereus greggii]
                                               <i>Peniocereus greggii var. transmontanus</i>
                                                     [Cereus greggii var. transmontanus]
                                             <i>Peniocereus guatemalensis</i>
                                             <i>Peniocereus hirschtianus</i>
                                                   [Nyctocereus guatemalensis]
                                                   [Nyctocereus hirschtianus]
                                                   [Nyctocereus neumannii]
                                             <i>Peniocereus johnstonii</i>
                                             <i>Peniocereus lazaro-cardenasii</i>
                                                   [Neoevansia lazaro-cardenasii]
                                             <i>Peniocereus macdougallii</i>
                                             <i>Peniocereus maculatus</i>
                                             <i>Peniocereus marianus</i>
                                             <i>Peniocereus oaxacensis</i>
                                                   [Nyctocereus oaxacensis]
                                             <i>Peniocereus occidentalis</i>
                                             <i>Peniocereus papillosus</i>
                                                   [Wilcoxia papillosa]
                                             <i>Peniocereus rosei</i>
                                             <i>Peniocereus serpentinus</i>
                                                   [Nyctocereus castellanosii]
                                             <i>Peniocereus striatus</i>
                                                   [Cereus diguetii]
                                                   [Cereus striatus]
                                                   [Neoevansia striata]
                                                   [Peniocereus diguetii]
                                                   [Wilcoxia diguetii]
                                                   [Wilcoxia striata]
                                             <i>Peniocereus tepalcatepecanus</i>
                                             <i>Peniocereus viperinus</i>
                                                   [Cereus viperinus]
                                                   [Wilcoxia tomentosa]
                                                   [Wilcoxia viperina]
                                             <i>Peniocereus zopilotensis</i>
                                                   [Neoevansia zopilotensis]
                                                   [Wilcoxia zopilotensis]
                                     <i>Pereskia</i>
                                             <i>Pereskia aculeata</i>
                                                   [Cactus pereskia]
                                                   [Pereskia aculeata var. godseffiana]
                                                   [Pereskia pereskia]
                                             <i>Pereskia aureiflora</i>
                                             <i>Pereskia bahiensis</i>
                                             <i>Pereskia bleo</i>
                                             <i>Pereskia conzattii</i>
                                             <i>Pereskia diaz-romeroana</i>
                                             <i>Pereskia diazromeroana</i>
                                             <i>Pereskia grandiflora</i>
                                             <i>Pereskia grandifolia</i>
                                               <i>Pereskia grandifolia subsp. grandifolia</i>
                                                     [Pereskia tampicana]
                                               <i>Pereskia grandifolia subsp. violacea</i>
                                               <i>Pereskia grandifolia var. grandifolia</i>
                                             <i>Pereskia guamacho</i>
                                                   [Pereskia colombiana]
                                             <i>Pereskia horrida</i>
                                                   [Pereskia humboldtii]
                                                   [Pereskia vargasii]
                                               <i>Pereskia horrida subsp. horrida</i>
                                               <i>Pereskia horrida subsp. rauhii</i>
                                                     [Pereskia humboldtii var. rauhii]
                                             <i>Pereskia lychnidiflora</i>
                                                   [Leuenbergeria lychnidiflora]
                                                   [Pereskia autumnalis]
                                                   [Pereskiopsis opuntiiflora]
                                                   [Pereskiopsis pititache]
                                             <i>Pereskia marcanoi</i>
                                             <i>Pereskia nemorosa</i>
                                                   [Pereskia amapola]
                                             <i>Pereskia pititache</i>
                                             <i>Pereskia portulacifolia</i>
                                             <i>Pereskia quisqueyana</i>
                                             <i>Pereskia sacharosa</i>
                                                   [Pereskia moorei]
                                                   [Pereskia saipinensis]
                                                   [Pereskia sparsiflora]
                                             <i>Pereskia stenantha</i>
                                             <i>Pereskia weberiana</i>
                                             <i>Pereskia zinniiflora</i>
                                                   [Pereskia cubensis]
                                               <i>Pereskia humboldtii var. humboldtii</i>
                              Pereskioideae
                                     <i>Pereskiopsis</i>
                                             <i>Pereskiopsis aquosa</i>
                                             <i>Pereskiopsis blakeana</i>
                                             <i>Pereskiopsis diguetii</i>
                                                   [Pereskia higuerana]
                                                   [Pereskiopsis spathulata]
                                                   [Pereskiopsis velutina]
                                             <i>Pereskiopsis kellermanii</i>
                                                   [Pereskiopsis scandens]
                                             <i>Pereskiopsis porteri</i>
                                                   [Pereskiopsis gatesii]
                                             <i>Pereskiopsis rotundifolia</i>
                                                   [Pereskia rotundifolia]
                                                   [Pereskiopsis chapistle]
                                     <i>Pfeiffera</i>
                                             <i>Pfeiffera asuntapatensis</i>
                                             <i>Pfeiffera boliviana</i>
                                                   [Hariota boliviana]
                                                   [Lepismium bolivianum]
                                                   [Rhipsalis boliviana]
                                             <i>Pfeiffera brevispina</i>
                                                   [Lepismium brevispinum]
                                                   [Rhipsalis brevispina]
                                                   [Rhipsalis riocampanensis]
                                             <i>Pfeiffera crenata</i>
                                                   [Lepismium crenatum]
                                                   [Rhipsalis crenata]
                                             <i>Pfeiffera ianthothele</i>
                                                   [Lepismium ianthothele]
                                                   [Pfeiffera erecta]
                                                   [Pfeiffera gracilis]
                                                   [Pfeiffera mataralensis]
                                                   [Pfeiffera multigona]
                                             <i>Pfeiffera incahuasina</i>
                                             <i>Pfeiffera micrantha</i>
                                                   [Lepismium micranthum]
                                                   [Rhipsalis asperula]
                                             <i>Pfeiffera miyagawae</i>
                                                   [Lepismium miyagawae]
                                                   [Rhipsalis miyagawae]
                                             <i>Pfeiffera monacantha</i>
                                               <i>Pfeiffera monacantha subsp. kimnachii</i>
                                               <i>Pfeiffera monacantha subsp. monacantha</i>
                                                     [Acanthorhipsalis incahuasina]
                                             <i>Pfeiffera paranganiensis</i>
                                                   [Lepismium paranganiense]
                                                   [Rhipsalis paranganiensis]
                                     <i>Phellosperma</i>
                                     <i>Phyllocactus</i>
                                             <i>Phyllocactus phyllanthus</i>
                                     <i>Pierrebraunia</i>
                                             <i>Pierrebraunia bahiensis</i>
                                             <i>Pierrebraunia brauniorum</i>
                                     <i>Pilocereus</i>
                                             <i>Pilocereus alensis</i>
                                             <i>Pilocereus bradei</i>
                                             <i>Pilocereus houlettii</i>
                                             <i>Pilocereus robinii</i>
                                             <i>Pilocereus royenii</i>
                                     <i>Pilosocereus</i>
                                             <i>Pilosocereus albisummus</i>
                                                   [Pilosocereus estevesii]
                                                   [Pilosocereus goianus]
                                             <i>Pilosocereus alensis</i>
                                                   [Cephalocereus alensis]
                                                   [Cephalocereus guerreronis]
                                                   [Pilosocereus guerreronis]
                                             <i>Pilosocereus arrabidae</i>
                                                   [Cephalocereus arrabidae]
                                             <i>Pilosocereus atroflavispinus</i>
                                             <i>Pilosocereus aureispinus</i>
                                                   [Coleocephalocereus aureispinus]
                                             <i>Pilosocereus aurilanatus</i>
                                             <i>Pilosocereus aurisetus</i>
                                                   [Pilocereus aurisetus]
                                               <i>Pilosocereus aurisetus subsp. aurilanatus</i>
                                               <i>Pilosocereus aurisetus subsp. aurisetus</i>
                                                     [Pilosocereus aurisetus subsp. densilanatus]
                                                     [Pilosocereus aurisetus subsp. supthutianus]
                                                     [Pilosocereus aurisetus subsp. werdermannianus]
                                             <i>Pilosocereus azulensis</i>
                                             <i>Pilosocereus azureus</i>
                                             <i>Pilosocereus bahamensis</i>
                                             <i>Pilosocereus bohlei</i>
                                             <i>Pilosocereus bradei</i>
                                             <i>Pilosocereus brasiliensis</i>
                                                   [Cephalocereus brasiliensis]
                                                   [Pilosocereus sublanatus]
                                               <i>Pilosocereus brasiliensis subsp. brasiliensis</i>
                                               <i>Pilosocereus brasiliensis subsp. ruschianus</i>
                                             <i>Pilosocereus braunii</i>
                                             <i>Pilosocereus catingicola</i>
                                                   [Cephalocereus catingicola]
                                                   [Pilosocereus arenicola]
                                               <i>Pilosocereus catingicola subsp. catingicola</i>
                                                     [Pilosocereus catingicola subsp. arenicola]
                                                     [Pilosocereus catingicola subsp. robustus]
                                               <i>Pilosocereus catingicola subsp. salvadorensis</i>
                                                     [Pilosocereus catingicola subsp. hapalacanthus]
                                             <i>Pilosocereus cenepequei</i>
                                             <i>Pilosocereus chrysacanthus</i>
                                                   [Cephalocereus chrysacanthus]
                                             <i>Pilosocereus chrysostele</i>
                                             <i>Pilosocereus coerulescens</i>
                                             <i>Pilosocereus collinsii</i>
                                                   [Cephalocereus collinsii]
                                             <i>Pilosocereus curtisii</i>
                                                   [Pilocereus urbanianus]
                                             <i>Pilosocereus cyaneus</i>
                                             <i>Pilosocereus densiareolatus</i>
                                                   [Pilosocereus densiareolatus subsp. brunneolanatus]
                                             <i>Pilosocereus diersianus</i>
                                             <i>Pilosocereus flavipulvinatus</i>
                                                   [Pilosocereus carolinensis]
                                                   [Pilosocereus flavipulvinatus subsp. carolinensis]
                                                   [Pilosocereus flavipulvinatus var. carolinensis]
                                             <i>Pilosocereus flexibilispinus</i>
                                             <i>Pilosocereus floccosus</i>
                                                   [Pilocereus floccosus]
                                               <i>Pilosocereus floccosus subsp. floccosus</i>
                                               <i>Pilosocereus floccosus subsp. quadricostatus</i>
                                             <i>Pilosocereus fulvilanatus</i>
                                               <i>Pilosocereus fulvilanatus subsp. fulvilanatus</i>
                                                     [Pilosocereus fulvilanatus subsp. vanheekianus]
                                               <i>Pilosocereus fulvilanatus subsp. rosae</i>
                                             <i>Pilosocereus gaumeri</i>
                                             <i>Pilosocereus glaucochrous</i>
                                             <i>Pilosocereus gounellei</i>
                                                   [Cephalocereus gounellei]
                                               <i>Pilosocereus gounellei subsp. gounellei</i>
                                               <i>Pilosocereus gounellei subsp. zehntneri</i>
                                             <i>Pilosocereus hapalacanthus</i>
                                             <i>Pilosocereus juaruensis</i>
                                                   [Pilosocereus densivillosus]
                                                   [Pilosocereus paraguayensis]
                                                   [Pilosocereus saudadensis]
                                             <i>Pilosocereus lanuginosus</i>
                                                   [Cephalocereus colombianus]
                                                   [Cephalocereus lanuginosus]
                                                   [Cephalocereus tweedyanus]
                                                   [Cereus lanuginosus]
                                                   [Pilosocereus backebergii]
                                                   [Pilosocereus claroviridis]
                                                   [Pilosocereus colombianus]
                                                   [Pilosocereus gironensis]
                                                   [Pilosocereus tillianus]
                                                   [Pilosocereus tuberculosus]
                                             <i>Pilosocereus leucocephalus</i>
                                                   [Cephalocereus leucocephalus]
                                                   [Cephalocereus maxonii]
                                                   [Cephalocereus palmeri]
                                                   [Cephalocereus sartorianus]
                                                   [Pilosocereus maxonii]
                                                   [Pilosocereus palmeri]
                                                   [Pilosocereus sartorianus]
                                                   [Pilosocereus tehuacanus]
                                             <i>Pilosocereus machrisii</i>
                                                   [Cephalocereus machrisii]
                                                   [Pilosocereus cristalinensis]
                                                   [Pilosocereus lindaianus]
                                             <i>Pilosocereus magnificus</i>
                                             <i>Pilosocereus minensis</i>
                                             <i>Pilosocereus mollispinus</i>
                                             <i>Pilosocereus moritzianus</i>
                                                   [Cephalocereus moritzianus]
                                             <i>Pilosocereus multicostatus</i>
                                             <i>Pilosocereus oligolepis</i>
                                                   [Pilosocereus kanukuensis]
                                                   [Pilosocereus oligolepis subsp. kanukuensis]
                                             <i>Pilosocereus oreus</i>
                                             <i>Pilosocereus pachycladus</i>
                                               <i>Pilosocereus pachycladus subsp. pachycladus</i>
                                               <i>Pilosocereus pachycladus subsp. pernambucoensis</i>
                                                     [Pilosocereus pernambucoensis var. caesius]
                                             <i>Pilosocereus parvus</i>
                                             <i>Pilosocereus pentaedrophorus</i>
                                                   [Cephalocereus pentaedrophorus]
                                               <i>Pilosocereus pentaedrophorus subsp. pentaedrophorus</i>
                                               <i>Pilosocereus pentaedrophorus subsp. robustus</i>
                                             <i>Pilosocereus pernambucoensis</i>
                                             <i>Pilosocereus piauhyensis</i>
                                                   [Cephalocereus piauhyensis]
                                                   [Pilosocereus gaturianensis]
                                                   [Pilosocereus mucosiflorus]
                                                   [Pilosocereus piauhyensis subsp. gaturianensis]
                                                   [Pilosocereus piauhyensis subsp. mucosiflorus]
                                             <i>Pilosocereus pleurocarpus</i>
                                             <i>Pilosocereus polygonus</i>
                                                   [Cephalocereus bahamensis]
                                                   [Cephalocereus brooksianus]
                                                   [Cephalocereus polygonus]
                                                   [Cephalocereus robinii]
                                                   [Cereus monoclonos]
                                                   [Pilosocereus brooksianus]
                                                   [Pilosocereus deeringii]
                                                   [Pilosocereus keyensis]
                                             <i>Pilosocereus purpusii</i>
                                             <i>Pilosocereus pusillibaccatus</i>
                                             <i>Pilosocereus pusilliflorus</i>
                                             <i>Pilosocereus quadricentralis</i>
                                                   [Cephalocereus quadricentralis]
                                             <i>Pilosocereus quadricostatus</i>
                                             <i>Pilosocereus robinii</i>
                                               <i>Pilosocereus robinii subsp. robinii</i>
                                                     [Pilocereus bahamensis]
                                               <i>Pilosocereus robinii var. deeringii</i>
                                               <i>Pilosocereus robinii var. robinii</i>
                                                     [Cactus robinii]
                                             <i>Pilosocereus robustus</i>
                                             <i>Pilosocereus rosae</i>
                                             <i>Pilosocereus royenii</i>
                                                   [Cephalocereus barbadensis]
                                                   [Cephalocereus gaumeri]
                                                   [Cephalocereus millspaughii]
                                                   [Cephalocereus monoclonos]
                                                   [Cephalocereus nobilis]
                                                   [Cephalocereus royenii]
                                                   [Cephalocereus swartzii]
                                                   [Cereus royenii]
                                                   [Pilocereus strictus]
                                                   [Pilosocereus barbadensis]
                                                   [Pilosocereus millspaughii]
                                                   [Pilosocereus monoclonos]
                                                   [Pilosocereus nobilis]
                                                   [Pilosocereus swartzii]
                                                   [Pilosocereus urbanianus]
                                             <i>Pilosocereus rupicola</i>
                                             <i>Pilosocereus ruschianus</i>
                                             <i>Pilosocereus salvadorensis</i>
                                             <i>Pilosocereus schoebelii</i>
                                             <i>Pilosocereus sergipensis</i>
                                             <i>Pilosocereus splendidus</i>
                                             <i>Pilosocereus superbus</i>
                                             <i>Pilosocereus superfloccosus</i>
                                             <i>Pilosocereus supthutianus</i>
                                             <i>Pilosocereus tuberculatus</i>
                                             <i>Pilosocereus tweedyanus</i>
                                             <i>Pilosocereus ulei</i>
                                                   [Cephalocereus robustus]
                                             <i>Pilosocereus vilaboensis</i>
                                                   [Pilosocereus rizzoanus]
                                                   [Pilosocereus rizzoianus]
                                             <i>Pilosocereus werdermannianus</i>
                                             <i>Pilosocereus x occultiflorus</i>
                                             <i>Pilosocereus x subsimilis</i>
                                             <i>Pilosocereus zehnteri</i>
                                     <i>Piptanthocereus</i>
                                             <i>Piptanthocereus colosseus</i>
                                             <i>Piptanthocereus crassisepalus</i>
                                     <i>Platyopuntia</i>
                                     <i>Polaskia</i>
                                             <i>Polaskia chende</i>
                                                   [Lemaireocereus chende]
                                                   [Myrtillocactus chende]
                                             <i>Polaskia chichipe</i>
                                                   [Lemaireocereus chichipe]
                                                   [Lemaireocereus mixtecensis]
                                                   [Myrtillocactus chichipe]
                                     <i>Praecereus</i>
                                             <i>Praecereus amazonicus</i>
                                             <i>Praecereus apoloensis</i>
                                             <i>Praecereus campinensis</i>
                                             <i>Praecereus euchlorus</i>
                                                   [Cereus euchlorus]
                                                   [Monvillea euchlora]
                                               <i>Praecereus euchlorus subsp. amazonicus</i>
                                               <i>Praecereus euchlorus subsp. diffusus</i>
                                               <i>Praecereus euchlorus subsp. euchlorus</i>
                                                     [Cereus campinensis subsp. piedadensis]
                                                     [Cereus campinensis var. piedadensis]
                                                     [Cereus euchlorus subsp. leucanthus]
                                               <i>Praecereus euchlorus subsp. jaenensis</i>
                                               <i>Praecereus euchlorus subsp. smithianus</i>
                                             <i>Praecereus jaenensis</i>
                                             <i>Praecereus maritimus</i>
                                             <i>Praecereus saxicola</i>
                                                   [Cereus euchlorus subsp. rhodoleucanthus]
                                                   [Cereus rhodoleucanthus]
                                                   [Cereus ritteri subsp. parapetiensis]
                                                   [Cereus ritteri]
                                                   [Cereus saxicola]
                                                   [Monvillea chacoana]
                                                   [Monvillea parapetiensis]
                                                   [Monvillea rhodoleucantha]
                                                   [Monvillea saxicola]
                                             <i>Praecereus smithianus</i>
                                     <i>Pseudoacanthocereus</i>
                                             <i>Pseudoacanthocereus brasiliensis</i>
                                                   [Pseudoacanthocereus boreominarum]
                                             <i>Pseudoacanthocereus sicariguensis</i>
                                     <i>Pseudomitrocereus</i>
                                     <i>Pseudorhipsalis</i>
                                             <i>Pseudorhipsalis acuminata</i>
                                                   [Disocactus acuminatus]
                                                   [Disocactus horichii]
                                                   [Pseudorhipsalis horichii]
                                             <i>Pseudorhipsalis alata</i>
                                                   [Disocactus alatus]
                                                   [Rhipsalis alata]
                                             <i>Pseudorhipsalis amazonica</i>
                                               <i>Pseudorhipsalis amazonica subsp. amazonica</i>
                                               <i>Pseudorhipsalis amazonica subsp. chocoensis</i>
                                               <i>Pseudorhipsalis amazonica subsp. panamensis</i>
                                                     [Wittia panamensis]
                                             <i>Pseudorhipsalis himantoclada</i>
                                                   [Disocactus himantocladus]
                                                   [Rhipsalis himantoclada]
                                             <i>Pseudorhipsalis lankesteri</i>
                                                   [Disocactus lankesteri]
                                             <i>Pseudorhipsalis ramulosa</i>
                                                   [Disocactus ramulosus]
                                                   [Rhipsalis angustissima]
                                                   [Rhipsalis angustissimus]
                                                   [Rhipsalis leiophloea]
                                                   [Rhipsalis purpusii]
                                               <i>Pseudorhipsalis ramulosa subsp. jamaicensis</i>
                                                     [Rhipsalis jamaicensis]
                                               <i>Pseudorhipsalis ramulosa subsp. ramulosa</i>
                                     <i>Pterocactus</i>
                                             <i>Pterocactus araucanus</i>
                                             <i>Pterocactus australis</i>
                                             <i>Pterocactus fischeri</i>
                                             <i>Pterocactus gonjianii</i>
                                             <i>Pterocactus hickenii</i>
                                                   [Pterocactus skottsbergii]
                                             <i>Pterocactus megliolii</i>
                                             <i>Pterocactus reticulatus</i>
                                             <i>Pterocactus tuberosus</i>
                                                   [Pterocactus decipiens]
                                                   [Pterocactus kuntzei]
                                             <i>Pterocactus valentini</i>
                                                   [Pterocactus pumilus]
                                                   [Pterocactus valentinii]
                                     <i>Pterocereus</i>
                                             <i>Pterocereus gaumeri</i>
                                                   [Pterocereus foetidus]
                                     <i>Pygmaeocereus</i>
                                             <i>Pygmaeocereus bieblii</i>
                                             <i>Pygmaeocereus bylesianus</i>
                                             <i>Pygmaeocereus familiaris</i>
                                     <i>Pyrrhocactus</i>
                                             <i>Pyrrhocactus atroviridis</i>
                                             <i>Pyrrhocactus carrizalensis</i>
                                             <i>Pyrrhocactus echinus</i>
                                             <i>Pyrrhocactus floccosus</i>
                                             <i>Pyrrhocactus glaucescens</i>
                                             <i>Pyrrhocactus huascensis</i>
                                             <i>Pyrrhocactus neohankeanus</i>
                                             <i>Pyrrhocactus simulans</i>
                                             <i>Pyrrhocactus transitensis</i>
                                             <i>Pyrrhocactus vallenarensis</i>
                                     <i>Quiabentia</i>
                                             <i>Quiabentia verticillata</i>
                                                   [Pereskia pflanzii]
                                                   [Pereskia verticillata]
                                                   [Quiabentia chacoensis]
                                                   [Quiabentia pereziensis]
                                                   [Quiabentia pflanzii]
                                             <i>Quiabentia zehntneri</i>
                                                   [Pereskia zehntneri]
                                     <i>Rapicactus</i>
                                             <i>Rapicactus beguinii</i>
                                     <i>Rathbunia</i>
                                             <i>Rathbunia alamosensis</i>
                                     <i>Rauhocereus</i>
                                             <i>Rauhocereus riosaniensis</i>
                                               <i>Rauhocereus riosaniensis subsp. jaenensis</i>
                                               <i>Rauhocereus riosaniensis subsp. riosaniensis</i>
                                     <i>Rebutia</i>
                                           [Cereus pentaedrophorus]
                                             <i>Rebutia albiflora</i>
                                             <i>Rebutia albopectinata</i>
                                                   [Rebutia schatzliana]
                                                   [Rebutia supthutiana]
                                             <i>Rebutia arenacea</i>
                                                   [Sulcorebutia arenacea]
                                                   [Weingartia arenacea]
                                             <i>Rebutia auranitida</i>
                                             <i>Rebutia aureiflora</i>
                                             <i>Rebutia breviflora</i>
                                                   [Rebutia caineana]
                                                   [Rebutia haseltonii]
                                                   [Sulcorebutia breviflora]
                                                   [Sulcorebutia caineana]
                                                   [Sulcorebutia haseltonii]
                                                   [Weingartia breviflora]
                                                   [Weingartia caineana]
                                                   [Weingartia haseltonii]
                                             <i>Rebutia canigueralii</i>
                                                   [Rebutia canigueralii subsp. canigueralii]
                                                   [Sulcorebutia canigueralii]
                                                   [Sulcorebutia fischeriana]
                                                   [Sulcorebutia losenickyana]
                                                   [Sulcorebutia pasopayana]
                                                   [Sulcorebutia ritteri]
                                                   [Sulcorebutia zavaletae]
                                                   [Weingartia alba]
                                                   [Weingartia brevispina]
                                                   [Weingartia canigueralii]
                                                   [Weingartia losenickyana]
                                                   [Weingartia pasopayana]
                                                   [Weingartia ritteri]
                                                   [Weingartia rubro-aurea]
                                                   [Weingartia tarabucoensis]
                                                   [Weingartia zavaletae]
                                             <i>Rebutia cardenasiana</i>
                                                   [Sulcorebutia cardenasiana]
                                                   [Sulcorebutia langeri]
                                                   [Weingartia cardenasiana]
                                             <i>Rebutia cintia</i>
                                             <i>Rebutia cylindrica</i>
                                                   [Sulcorebutia cylindrica]
                                                   [Weingartia cylindrica]
                                             <i>Rebutia deminuta</i>
                                                   [Rebutia pseudodeminuta]
                                               <i>Rebutia deminuta subsp. deminuta</i>
                                                     [Rebutia froehlichiana]
                                                     [Rebutia frohlichiana]
                                                     [Rebutia fulviseta]
                                                     [Rebutia fusca]
                                                     [Rebutia mamillosa]
                                                     [Rebutia patericalyx]
                                                     [Rebutia pseudominuscula]
                                                     [Rebutia rubiginosa]
                                                     [Rebutia spegazziniana]
                                                     [Rebutia sumayana]
                                                     [Rebutia tarvitaensis]
                                                     [Rebutia tuberosa]
                                                     [Rebutia vulpina]
                                                     [Rebutia zecheri]
                                               <i>Rebutia deminuta subsp. kupperiana</i>
                                                     [Rebutia albiareolata]
                                                     [Rebutia buiningiana]
                                                     [Rebutia kupperiana]
                                                     [Rebutia minutissima]
                                                     [Rebutia nitida]
                                                     [Rebutia nogalesensis]
                                                     [Rebutia robustispina]
                                                     [Rebutia sanguinea]
                                                     [Rebutia wahliana]
                                             <i>Rebutia einsteinii</i>
                                                   [Lobivia einsteinii]
                                               <i>Rebutia einsteinii subsp. aureiflora</i>
                                                     [Mediolobivia euanthema var. fricii]
                                                     [Rebutia aureiflora subsp. elegans]
                                                     [Rebutia aureiflora var. elegans]
                                               <i>Rebutia einsteinii subsp. einsteinii</i>
                                               <i>Rebutia einsteinii subsp. gonjianii</i>
                                             <i>Rebutia euanthema</i>
                                             <i>Rebutia fabrisii</i>
                                             <i>Rebutia fidana</i>
                                                   [Rebutia fidaiana]
                                                   [Sulcorebutia fidaiana]
                                                   [Weingartia fidaiana]
                                               <i>Rebutia fidana subsp. cintiensis</i>
                                                     [Rebutia fidaiana subsp. cintiensis]
                                                     [Weingartia fidaiana subsp. cintiensis]
                                               <i>Rebutia fidana subsp. fidana</i>
                                                     [Rebutia fidaiana subsp. fidaiana]
                                             <i>Rebutia fiebrigii</i>
                                                   [Mediolobivia ithyacantha]
                                                   [Rebutia albipilosa]
                                                   [Rebutia archibuiningiana]
                                                   [Rebutia cajasensis]
                                                   [Rebutia cintiensis]
                                                   [Rebutia donaldiana]
                                                   [Rebutia flavistyla]
                                                   [Rebutia hoffmannii]
                                                   [Rebutia iscayachensis]
                                                   [Rebutia jujuyana]
                                                   [Rebutia kieslingii]
                                                   [Rebutia muscula]
                                                   [Rebutia narvaecense]
                                                   [Rebutia narvaecensis]
                                                   [Rebutia pulchella]
                                                   [Rebutia simoniana]
                                                   [Rebutia spinosissima]
                                                   [Rebutia tamboensis]
                                                   [Rebutia vallegrandensis]
                                                   [Rebutia walteri]
                                             <i>Rebutia fischeriana</i>
                                             <i>Rebutia glomeriseta</i>
                                                   [Rebutia candiae]
                                                   [Rebutia menesesii]
                                                   [Sulcorebutia candiae]
                                                   [Sulcorebutia glomeriseta]
                                                   [Sulcorebutia krahnii]
                                                   [Sulcorebutia menesesii var. kamiensis]
                                                   [Sulcorebutia menesesii var. muschii]
                                                   [Sulcorebutia menesesii]
                                                   [Sulcorebutia muschii]
                                                   [Sulcorebutia xanthoantha]
                                                   [Weingartia candiae]
                                                   [Weingartia glomeriseta]
                                                   [Weingartia glomerispina]
                                                   [Weingartia krahnii]
                                                   [Weingartia menesesii]
                                                   [Weingartia muschii]
                                             <i>Rebutia gonjianii</i>
                                             <i>Rebutia heliosa</i>
                                             <i>Rebutia krugerae</i>
                                                   [Rebutia steinbachii subsp. kruegerae]
                                                   [Rebutia steinbachii subsp. kruegeri]
                                                   [Sulcorebutia krugerae]
                                                   [Sulcorebutia steinbachii subsp. krugerae]
                                                   [Weingartia krugerae]
                                             <i>Rebutia mentosa</i>
                                                   [Sulcorebutia mentosa]
                                                   [Weingartia mentosa]
                                               <i>Rebutia mentosa subsp. mentosa</i>
                                                     [Sulcorebutia markusii subsp. tintiniensis]
                                                     [Sulcorebutia mentosa subsp. flavissima]
                                               <i>Rebutia mentosa subsp. purpurea</i>
                                             <i>Rebutia minuscula</i>
                                                   [Rebutia calliantha]
                                                   [Rebutia carminea]
                                                   [Rebutia chrysacantha]
                                                   [Rebutia graciliflora]
                                                   [Rebutia grandiflora]
                                                   [Rebutia hyalacantha]
                                                   [Rebutia kariusiana]
                                                   [Rebutia krainziana]
                                                   [Rebutia marsoneri]
                                                   [Rebutia minuscula subsp. grandiflora]
                                                   [Rebutia minuscula subsp. violaciflora]
                                                   [Rebutia minuscula var. grandiflora]
                                                   [Rebutia senilis subsp. chrysacantha]
                                                   [Rebutia senilis var. chrysacantha]
                                                   [Rebutia senilis]
                                                   [Rebutia violaciflora]
                                                   [Rebutia wessneriana subsp. beryllioides]
                                                   [Rebutia wessneriana var. beryllioides]
                                                   [Rebutia wessneriana]
                                                   [Rebutia xanthocarpa]
                                             <i>Rebutia neocumingii</i>
                                                   [Sulcorebutia neocumingii]
                                                   [Weingartia neocumingii]
                                               <i>Rebutia neocumingii subsp. lanata</i>
                                                     [Rebutia neocumingii subsp. pilcomayensis]
                                                     [Rebutia neocumingii subsp. riograndensis]
                                                     [Sulcorebutia lanata]
                                                     [Sulcorebutia longigibba]
                                                     [Sulcorebutia pilcomayensis]
                                                     [Sulcorebutia riograndensis]
                                                     [Weingartia lanata subsp. longigibba]
                                                     [Weingartia lanata subsp. pilcomayensis]
                                                     [Weingartia lanata subsp. riograndensis]
                                                     [Weingartia lanata]
                                                     [Weingartia longigibba]
                                                     [Weingartia pilcomayensis]
                                                     [Weingartia riograndensis]
                                               <i>Rebutia neocumingii subsp. neocumingii</i>
                                                     [Lobivia cumingii]
                                                     [Rebutia corroana]
                                                     [Rebutia neocumingii subsp. trollii]
                                                     [Sulcorebutia corroana]
                                                     [Sulcorebutia erinacea]
                                                     [Sulcorebutia hediniana]
                                                     [Sulcorebutia multispina]
                                                     [Sulcorebutia neocorroana]
                                                     [Sulcorebutia platygona]
                                                     [Weingartia ambigua]
                                                     [Weingartia attenuata]
                                                     [Weingartia brachygraphisa]
                                                     [Weingartia buiningiana]
                                                     [Weingartia columnaris]
                                                     [Weingartia corroana]
                                                     [Weingartia erinacea]
                                                     [Weingartia gracilispina]
                                                     [Weingartia hediniana]
                                                     [Weingartia mairanana]
                                                     [Weingartia mataralensis]
                                                     [Weingartia miranda]
                                                     [Weingartia multispina]
                                                     [Weingartia neglecta]
                                                     [Weingartia platygona]
                                                     [Weingartia saetosa]
                                                     [Weingartia trollii]
                                               <i>Rebutia neocumingii subsp. pulquinensis</i>
                                                     [Rebutia neocumingii subsp. saipinensis]
                                                     [Sulcorebutia pulquinensis]
                                                     [Sulcorebutia sucrensis]
                                                     [Weingartia neocumingii subsp. pulquinensis]
                                                     [Weingartia pulquinensis]
                                                     [Weingartia saipinensis]
                                                     [Weingartia sucrensis]
                                             <i>Rebutia neumanniana</i>
                                                   [Gymnocalycium neumannianum]
                                                   [Sulcorebutia neumanniana]
                                                   [Weingartia kargliana]
                                                   [Weingartia neumanniana]
                                                   [Weingartia pygmaea]
                                             <i>Rebutia oculata</i>
                                             <i>Rebutia oligacantha</i>
                                                   [Sulcorebutia tarijensis]
                                                   [Weingartia oligacantha]
                                                   [Weingartia sanguineo-tarijensis]
                                                   [Weingartia tarijensis]
                                             <i>Rebutia padcayensis</i>
                                                   [Rebutia singularis]
                                                   [Weingartia margarethae]
                                             <i>Rebutia perplexa</i>
                                             <i>Rebutia pulchra</i>
                                                   [Rebutia canigueralii subsp. crispata]
                                                   [Rebutia canigueralii subsp. pulchra]
                                                   [Rebutia caracarensis]
                                                   [Rebutia inflexiseta]
                                                   [Rebutia pulchera]
                                                   [Sulcorebutia caracarensis]
                                                   [Sulcorebutia crispata]
                                                   [Sulcorebutia frankiana]
                                                   [Sulcorebutia gerosenilis]
                                                   [Sulcorebutia hertusii subsp. aureicapillata]
                                                   [Sulcorebutia hertusii]
                                                   [Sulcorebutia inflexiseta]
                                                   [Sulcorebutia rauschii]
                                                   [Weingartia aureispina]
                                                   [Weingartia caracarensis]
                                                   [Weingartia crispata]
                                                   [Weingartia frankiana]
                                                   [Weingartia inflexiseta]
                                                   [Weingartia pulchra]
                                                   [Weingartia rauschii]
                                             <i>Rebutia pulvinosa</i>
                                               <i>Rebutia pulvinosa subsp. albiflora</i>
                                               <i>Rebutia pulvinosa subsp. perplexa</i>
                                               <i>Rebutia pulvinosa subsp. pulvinosa</i>
                                             <i>Rebutia pygmaea</i>
                                                   [Lobivia atrovirens]
                                                   [Lobivia neohaageana]
                                                   [Lobivia nigricans]
                                                   [Lobivia nigrispina]
                                                   [Lobivia orurensis]
                                                   [Lobivia pectinata]
                                                   [Mediolobivia haefneriana]
                                                   [Mediolobivia nigricans]
                                                   [Mediolobivia pygmaea]
                                                   [Rebutia atrovirens]
                                                   [Rebutia canacruzensis]
                                                   [Rebutia carmeniana]
                                                   [Rebutia colorea]
                                                   [Rebutia diersiana var. atrovirens]
                                                   [Rebutia diersiana]
                                                   [Rebutia eos]
                                                   [Rebutia friedrichiana]
                                                   [Rebutia gracilispina]
                                                   [Rebutia iridescens]
                                                   [Rebutia lanosiflora]
                                                   [Rebutia leucanthema]
                                                   [Rebutia mixta]
                                                   [Rebutia mixticolor]
                                                   [Rebutia mudanensis]
                                                   [Rebutia nigricans]
                                                   [Rebutia odontopetala]
                                                   [Rebutia orurensis]
                                                   [Rebutia pallida]
                                                   [Rebutia pauciareolata]
                                                   [Rebutia paucicostata]
                                                   [Rebutia rosalbiflora var. amblypetala]
                                                   [Rebutia rosalbiflora]
                                                   [Rebutia rutiliflora]
                                                   [Rebutia salpingantha]
                                                   [Rebutia torquata]
                                                   [Rebutia tropaeolipicta]
                                                   [Rebutia villazonensis]
                                                   [Rebutia violascens]
                                                   [Rebutia yuquinensis]
                                             <i>Rebutia ritteri</i>
                                                   [Lobivia ritteri]
                                                   [Mediolobivia ritteri]
                                                   [Rebutia brunescens]
                                                   [Rebutia huasiensis]
                                                   [Rebutia raulii]
                                             <i>Rebutia sarothroides</i>
                                             <i>Rebutia steinbachii</i>
                                                   [Sulcorebutia steinbachii]
                                                   [Weingartia steinbachii]
                                               <i>Rebutia steinbachii subsp. steinbachii</i>
                                                     [Lobivia hoffmanniana]
                                                     [Rebutia glomerispina]
                                                     [Rebutia polymorpha]
                                                     [Rebutia taratensis]
                                                     [Rebutia tuberculato-chrysantha]
                                                     [Rebutia tunariensis]
                                                     [Rebutia vizcarrae]
                                                     [Sulcorebutia cochabambina]
                                                     [Sulcorebutia glomerispina]
                                                     [Sulcorebutia hoffmanniana]
                                                     [Sulcorebutia lepida]
                                                     [Sulcorebutia mariana]
                                                     [Sulcorebutia mizquensis]
                                                     [Sulcorebutia pampagrandensis]
                                                     [Sulcorebutia polymorpha]
                                                     [Sulcorebutia steinbachii var. australis]
                                                     [Sulcorebutia taratensis]
                                                     [Sulcorebutia tuberculato-chrysantha]
                                                     [Sulcorebutia tunariensis]
                                                     [Sulcorebutia vizcarrae]
                                                     [Weingartia ansaldoensis]
                                                     [Weingartia backebergiana]
                                                     [Weingartia clavata]
                                                     [Weingartia croceareolata]
                                                     [Weingartia electracantha]
                                                     [Weingartia lepida]
                                                     [Weingartia minima]
                                                     [Weingartia mizquensis]
                                                     [Weingartia oenantha]
                                                     [Weingartia pampagrandensis]
                                                     [Weingartia polymorpha]
                                                     [Weingartia taratensis]
                                                     [Weingartia totoralensis]
                                                     [Weingartia totorensis]
                                                     [Weingartia tuberculato-chrysantha]
                                                     [Weingartia tunariensis]
                                                     [Weingartia viscarrae]
                                                     [Weingartia vizcarrae]
                                               <i>Rebutia steinbachii subsp. tiraquensis</i>
                                                     [Rebutia tiraquensis]
                                                     [Sulcorebutia tiraquensis]
                                                     [Weingartia tiraquensis]
                                               <i>Rebutia steinbachii subsp. verticillacantha</i>
                                                     [Sulcorebutia verticillacantha]
                                                     [Weingartia verticillacantha]
                                             <i>Rebutia steinmannii</i>
                                                   [Lobivia brachyantha]
                                                   [Lobivia eucaliptana]
                                                   [Lobivia steinmannii]
                                                   [Mediolobivia brachiantha]
                                                   [Mediolobivia costata]
                                                   [Mediolobivia eucaliptana]
                                                   [Mediolobivia steinmannii]
                                                   [Rebutia brachyantha]
                                                   [Rebutia brunneoradicata]
                                                   [Rebutia camargoensis]
                                                   [Rebutia christinae]
                                                   [Rebutia costata]
                                                   [Rebutia eucaliptana]
                                                   [Rebutia poecilantha]
                                                   [Rebutia potosina]
                                                   [Rebutia rauschii]
                                             <i>Rebutia tarijensis</i>
                                             <i>Rebutia vasqueziana</i>
                                                   [Sulcorebutia alba]
                                                   [Sulcorebutia vasqueziana]
                                     <i>Rhipsalis</i>
                                           [Erythrorhipsalis]
                                           [Rhipsalis goebeliana]
                                             <i>Rhipsalis agudoensis</i>
                                             <i>Rhipsalis baccifera</i>
                                                   [Cassytha baccifera]
                                                   [Rhipsalis bartlettii]
                                                   [Rhipsalis cassutha]
                                                   [Rhipsalis cassuthopsis]
                                                   [Rhipsalis cassytha]
                                                   [Rhipsalis cassythoides]
                                                   [Rhipsalis cassythoydes]
                                                   [Rhipsalis heptagona]
                                                   [Rhipsalis hylaea]
                                                   [Rhipsalis minutiflora]
                                                   [Rhipsalis undulata]
                                               <i>Rhipsalis baccifera subsp. baccifera</i>
                                                     [Rhipsalis guineensis]
                                                     [Rhipsalis zanzibarica]
                                               <i>Rhipsalis baccifera subsp. cleistogama</i>
                                               <i>Rhipsalis baccifera subsp. erythrocarpa</i>
                                                     [Rhipsalis erythrocarpa]
                                               <i>Rhipsalis baccifera subsp. hileiabaiana</i>
                                               <i>Rhipsalis baccifera subsp. horrida</i>
                                                     [Rhipsalis pilosa]
                                               <i>Rhipsalis baccifera subsp. mauritiana</i>
                                                     [Rhipsalis baccifera subsp. fortdauphinensis]
                                                     [Rhipsalis cassytha var. mauritiana]
                                               <i>Rhipsalis baccifera subsp. shaferi</i>
                                                     [Rhipsalis shaferi]
                                             <i>Rhipsalis burchellii</i>
                                             <i>Rhipsalis campos-portoana</i>
                                             <i>Rhipsalis cereoides</i>
                                             <i>Rhipsalis cereuscula</i>
                                                   [Rhipsalis penduliflora]
                                                   [Rhipsalis saglionis]
                                                   [Rhipsalis simmleri]
                                             <i>Rhipsalis clavata</i>
                                             <i>Rhipsalis cribrata</i>
                                             <i>Rhipsalis crispata</i>
                                             <i>Rhipsalis cuneata</i>
                                             <i>Rhipsalis dissimilis</i>
                                                   [Lepismium chrysanthum]
                                                   [Lepismium dissimile]
                                                   [Lepismium epiphyllanthoides]
                                                   [Lepismium saxatile]
                                                   [Rhipsalis chrysantha]
                                                   [Rhipsalis rigida]
                                                   [Rhipsalis saxatile]
                                                   [Rhipsalis spinescens]
                                             <i>Rhipsalis elliptica</i>
                                                   [Rhipsalis chloroptera]
                                             <i>Rhipsalis ewaldiana</i>
                                             <i>Rhipsalis floccosa</i>
                                                   [Lepismium floccosum]
                                               <i>Rhipsalis floccosa subsp. floccosa</i>
                                               <i>Rhipsalis floccosa subsp. hohenauensis</i>
                                               <i>Rhipsalis floccosa subsp. oreophila</i>
                                               <i>Rhipsalis floccosa subsp. pittieri</i>
                                               <i>Rhipsalis floccosa subsp. pulvinigera</i>
                                               <i>Rhipsalis floccosa subsp. tucumanensis</i>
                                             <i>Rhipsalis flosculosa</i>
                                             <i>Rhipsalis gibberula</i>
                                             <i>Rhipsalis grandiflora</i>
                                                   [Lepismium grandiflorum]
                                                   [Rhipsalis fastigiata]
                                                   [Rhipsalis hadrosoma]
                                             <i>Rhipsalis hoelleri</i>
                                             <i>Rhipsalis hohenauensis</i>
                                             <i>Rhipsalis juengeri</i>
                                             <i>Rhipsalis lindbergiana</i>
                                                   [Rhipsalis densiareolata]
                                             <i>Rhipsalis lumbricoides</i>
                                             <i>Rhipsalis mesembryanthemoides</i>
                                                   [Rhipsalis mesembryanthoides]
                                             <i>Rhipsalis micrantha</i>
                                                   [Rhipsalis kirbergii]
                                                   [Rhipsalis rauhiorum]
                                                   [Rhipsalis roseana]
                                                   [Rhipsalis tonduzii]
                                                   [Rhipsalis wercklei]
                                             <i>Rhipsalis monacantha</i>
                                                   [Lepismium monacanthum]
                                             <i>Rhipsalis monteazulensis</i>
                                             <i>Rhipsalis neves-armondii</i>
                                                   [Lepismium megalanthum]
                                                   [Lepismium neves-armondii]
                                                   [Rhipsalis megalantha]
                                             <i>Rhipsalis oblonga</i>
                                                   [Rhipsalis crispimarginata]
                                             <i>Rhipsalis occidentalis</i>
                                             <i>Rhipsalis olivifera</i>
                                             <i>Rhipsalis ormindoi</i>
                                             <i>Rhipsalis pacheco-leonis</i>
                                                   [Lepismium pacheco-leonis]
                                               <i>Rhipsalis pacheco-leonis subsp. catenulata</i>
                                               <i>Rhipsalis pacheco-leonis subsp. pacheco-leonis</i>
                                             <i>Rhipsalis pachyptera</i>
                                                   [Rhipsalis dusenii]
                                                   [Rhipsalis robusta]
                                             <i>Rhipsalis paradoxa</i>
                                               <i>Rhipsalis paradoxa subsp. paradoxa</i>
                                                     [Lepismium paradoxum]
                                               <i>Rhipsalis paradoxa subsp. septentrionalis</i>
                                             <i>Rhipsalis parasitica</i>
                                               <i>Rhipsalis parasitica subsp. horrida</i>
                                                     [Rhipsalis horrida]
                                               <i>Rhipsalis parasitica subsp. parasitica</i>
                                                     [Rhipsalis fasciculata]
                                             <i>Rhipsalis pentaptera</i>
                                             <i>Rhipsalis pilocarpa</i>
                                                   [Erythrorhipsalis pilocarpa]
                                             <i>Rhipsalis pittieri</i>
                                             <i>Rhipsalis platycarpa</i>
                                             <i>Rhipsalis pulchra</i>
                                             <i>Rhipsalis pulvinigera</i>
                                             <i>Rhipsalis puniceodiscus</i>
                                                   [Lepismium puniceodiscus var. chrysocarpum]
                                                   [Rhipsalis chrysocarpa]
                                             <i>Rhipsalis ramulosa</i>
                                             <i>Rhipsalis rhombea</i>
                                             <i>Rhipsalis russellii</i>
                                             <i>Rhipsalis sarmentacea</i>
                                             <i>Rhipsalis sulcata</i>
                                             <i>Rhipsalis teres</i>
                                                   [Rhipsalis alboareolata]
                                                   [Rhipsalis capilliformis]
                                                   [Rhipsalis clavellina]
                                                   [Rhipsalis conferta]
                                                   [Rhipsalis heteroclada]
                                                   [Rhipsalis maricaensis]
                                                   [Rhipsalis prismatica]
                                                   [Rhipsalis virgata]
                                             <i>Rhipsalis trigona</i>
                                                   [Lepismium trigonum]
                                             <i>Rhipsalis tucumanensis</i>
                                     <i>Ripsalis</i>
                                     <i>Ritterocereus</i>
                                     <i>Samaipaticereus</i>
                                             <i>Samaipaticereus corroanus</i>
                                             <i>Samaipaticereus inquisivensis</i>
                                     <i>Schlumbergera</i>
                                           [Schlumbergera x exotica]
                                           [Schlumbergera x reginae]
                                             <i>Schlumbergera bridgesii</i>
                                             <i>Schlumbergera gaertneri</i>
                                             <i>Schlumbergera kautskyi</i>
                                                   [Schlumbergera truncata subsp. kautskyi]
                                             <i>Schlumbergera microsphaerica</i>
                                                   [Cereus microsphaericus]
                                                   [Schlumbergera microsphaerica subsp. candida]
                                                   [Schlumbergera microsphaerica subsp. microsphaerica]
                                                   [Schlumbergera obtusangula]
                                             <i>Schlumbergera opuntioides</i>
                                             <i>Schlumbergera orssichiana</i>
                                             <i>Schlumbergera russeliana</i>
                                             <i>Schlumbergera russelliana</i>
                                             <i>Schlumbergera truncata</i>
                                                   [Epiphyllum truncatum]
                                                   [Zygocactus truncatus]
                                             <i>Schlumbergera x buckleyi</i>
                                             <i>Schlumbergera ×buckleyi</i>
                                     <i>Sclerocactus</i>
                                             <i>Sclerocactus blainei</i>
                                                   [Pediocactus spinosior subsp. blainei]
                                                   [Sclerocactus schlesseri]
                                             <i>Sclerocactus brevihamatus</i>
                                                   [Pediocactus brevihamatus]
                                                   [Sclerocactus brevihamaticus]
                                               <i>Sclerocactus brevihamatus subsp. brevihamatus</i>
                                               <i>Sclerocactus brevihamatus subsp. tobuschii</i>
                                                     [Pediocactus brevihamatus subsp. tobuschii]
                                             <i>Sclerocactus brevispinus</i>
                                             <i>Sclerocactus cloverae</i>
                                                   [Pediocactus cloverae]
                                                   [Sclerocactus cloveriae cloveriae]
                                                   [Sclerocactus cloveriae subsp. cloveriae]
                                                   [Sclerocactus cloveriae]
                                                   [Sclerocactus whipplei subsp. heilii]
                                                   [Sclerocactus whipplei var. reevesii]
                                               <i>Sclerocactus cloverae subsp. brackii</i>
                                                     [Pediocactus cloverae subsp. brackii]
                                                     [Sclerocactus cloveriae subsp. brackii]
                                               <i>Sclerocactus cloverae subsp. cloverae</i>
                                             <i>Sclerocactus glaucus</i>
                                                   [Echinocactus subglacus]
                                                   [Echinocactus subglaucus]
                                                   [Echinocactus whipplei var. glaucus]
                                                   [Ferocactus glaucus]
                                                   [Sclerocactus franklinii]
                                                   [Sclerocactus whipplei var. glaucus]
                                             <i>Sclerocactus havasupaiensis</i>
                                             <i>Sclerocactus intertextus</i>
                                                   [Echinomastus intertextus subsp. dasyacanthus]
                                                   [Neolloydia intertexta var. intertexta]
                                                   [Pediocactus intertextus]
                                             <i>Sclerocactus johnsonii</i>
                                                   [Echinocactus johnsonii subsp. lutescens]
                                                   [Echinocactus johnsonii var. lutescens]
                                                   [Echinocactus johnsonii]
                                                   [Echinomastus johnsonii subsp. johnsonii]
                                                   [Echinomastus johnsonii var. johnsonii]
                                                   [Echinomastus johnsonii var. lutescens]
                                                   [Echinomastus johnsonii]
                                                   [Ferocactus johnsonii]
                                                   [Neolloydia johnsonii var. lutescens]
                                                   [Pediocactus johnsonii]
                                             <i>Sclerocactus mariposensis</i>
                                                   [Pediocactus mariposensis]
                                             <i>Sclerocactus mesae-verdae</i>
                                                   [Coloradoa mesae-verdae]
                                                   [Echinocactus mesae-verdae]
                                                   [Ferocactus mesae-verdae]
                                                   [Pediocactus mesae-verdae]
                                               <i>Sclerocactus mesae-verdae subsp. depressus</i>
                                             <i>Sclerocactus nyensis</i>
                                                   [Pediocactus nyensis]
                                             <i>Sclerocactus papyracanthus</i>
                                                   [Echinocactus papyracanthus]
                                                   [Mammillaria papyracantha]
                                                   [Pediocactus papyracanthus]
                                                   [Toumeya papyracantha]
                                             <i>Sclerocactus parviflorus</i>
                                                   [Echinocactus whipplei]
                                                   [Ferocactus parviflorus]
                                                   [Pediocactus parviflorus subsp. intermedius]
                                                   [Pediocactus parviflorus subsp. terrae-canyonae]
                                                   [Pediocactus whipplei]
                                                   [Sclerocactus parviflorus var. blessingiae]
                                                   [Sclerocactus whipplei var. roseus]
                                               <i>Sclerocactus parviflorus subsp. havasupaiensis</i>
                                               <i>Sclerocactus parviflorus subsp. intermedius</i>
                                                     [Echinocactus whipplei var. intermedius]
                                                     [Sclerocactus intermedius]
                                                     [Sclerocactus parviflorus var. intermedius]
                                                     [Sclerocactus whipplei var. intermedius]
                                               <i>Sclerocactus parviflorus subsp. parviflorus</i>
                                                     [Sclerocactus contortus]
                                                     [Sclerocactus whipplei var. heilii]
                                                     [Sclerocactus whipplei var. reevsii]
                                               <i>Sclerocactus parviflorus subsp. terrae-canyonae</i>
                                                     [Sclerocactus terrae-canyonae]
                                               <i>Sclerocactus parviflorus var. parviflorus</i>
                                             <i>Sclerocactus polyancistrus</i>
                                                   [Ferocactus polyancistrus]
                                                   [Pediocactus polyancistrus]
                                             <i>Sclerocactus pubispinus</i>
                                                   [Echinocactus pubispinus]
                                                   [Ferocactus pubispinus]
                                                   [Sclerocactus pubispinus var. pubispinus]
                                             <i>Sclerocactus scheeri</i>
                                                   [Ancistrocactus megarrhizus]
                                                   [Echinocactus megarhizus]
                                                   [Ferocactus scheeri]
                                                   [Pediocactus scheeri]
                                                   [Sclerocactus sheeri]
                                             <i>Sclerocactus sileri</i>
                                             <i>Sclerocactus spinosior</i>
                                                   [Echinocactus whipplei var. spinosior]
                                                   [Ferocactus spinosior]
                                                   [Pediocactus spinosior]
                                                   [Sclerocactus pubispinus var. sileri]
                                                   [Sclerocactus pubispinus var. spinosior]
                                                   [Sclerocactus whipplei var. spinosior]
                                               <i>Sclerocactus spinosior subsp. blainei</i>
                                                     [Sclerocactus spinosior var. blainei]
                                               <i>Sclerocactus spinosior subsp. spinosior</i>
                                             <i>Sclerocactus uncinatus</i>
                                                   [Pediocactus uncinatus]
                                               <i>Sclerocactus uncinatus subsp. crassihamatus</i>
                                                     [Ancistrocactus crassihamatus]
                                                     [Ferocactus crassihamatus]
                                                     [Ferocactus mathssonii]
                                                     [Hamatocactus crassihamatus]
                                               <i>Sclerocactus uncinatus subsp. uncinatus</i>
                                                     [Ancistrocactus uncinatus var. uncinatus]
                                               <i>Sclerocactus uncinatus var. uncinatus</i>
                                                     [Ancistrocactus uncinatus]
                                                     [Echinocactus uncinatus]
                                                     [Thelocactus uncinatus]
                                               <i>Sclerocactus uncinatus var. wrightii</i>
                                                     [Ancistrocactus uncinatus var. wrightii]
                                                     [Echinocactus uncinatus var. wrightii]
                                                     [Ferocactus uncinatus var. wrightii]
                                                     [Sclerocactus uncinatus subsp. wrightii]
                                             <i>Sclerocactus unguispinus</i>
                                                   [Echinocactus unguispinus]
                                                   [Echinomastus durangensis]
                                                   [Echinomastus laui]
                                                   [Echinomastus mapimiensis]
                                                   [Echinomastus unguispinus var. laui]
                                                   [Neolloydia durangensis]
                                                   [Neolloydia unguispina]
                                                   [Pediocactus unguispinus]
                                                   [Thelocactus durangensis]
                                                   [Thelocactus unguispinus]
                                             <i>Sclerocactus warnockii</i>
                                                   [Pediocactus gautii]
                                                   [Pediocactus warnockii]
                                             <i>Sclerocactus wetlandicus</i>
                                             <i>Sclerocactus whipplei</i>
                                                   [Ferocactus whipplei]
                                                   [Sclerocactus whipplei subsp. busekii]
                                                   [Sclerocactus whipplei subsp. whipplei]
                                               <i>Sclerocactus whipplei var. ilseae</i>
                                               <i>Sclerocactus whipplei var. whipplei</i>
                                             <i>Sclerocactus wrightiae</i>
                                                   [Ferocactus wrightiae]
                                                   [Pediocactus wrightiae]
                                     <i>Selenicereus</i>
                                             <i>Selenicereus anthonyanus</i>
                                                   [Cryptocereus anthonyanus]
                                             <i>Selenicereus atropilosus</i>
                                             <i>Selenicereus boeckmannii</i>
                                             <i>Selenicereus chrysocardium</i>
                                                   [Epiphyllum chrysocardium]
                                             <i>Selenicereus coniflorus</i>
                                                   [Selenicereus pringlei]
                                             <i>Selenicereus donkelaarii</i>
                                             <i>Selenicereus grandiflorus</i>
                                                   [Cereus grandiflorus var. armatus]
                                                   [Cereus grandiflorus]
                                                   [Selenicereus macdonaldiae]
                                               <i>Selenicereus grandiflorus subsp. donkelaarii</i>
                                               <i>Selenicereus grandiflorus subsp. grandiflorus</i>
                                                     [Selenicereus hallensis]
                                                     [Selenicereus kunthianus]
                                                     [Selenicereus maxonii]
                                                     [Selenicereus urbanianus]
                                               <i>Selenicereus grandiflorus subsp. hondurensis</i>
                                                     [Selenicereus hondurensis]
                                               <i>Selenicereus grandiflorus subsp. lautneri</i>
                                             <i>Selenicereus guatemalensis</i>
                                             <i>Selenicereus hamatus</i>
                                             <i>Selenicereus inermis</i>
                                                   [Epiphyllum steyermarkii]
                                             <i>Selenicereus innesii</i>
                                             <i>Selenicereus minutiflorus</i>
                                                   [Wilmattea minutiflora]
                                             <i>Selenicereus mirandae</i>
                                             <i>Selenicereus monacanthus</i>
                                             <i>Selenicereus murrillii</i>
                                             <i>Selenicereus nelsonii</i>
                                             <i>Selenicereus ocamponis</i>
                                                   [Hylocereus bronxensis]
                                             <i>Selenicereus pteranthus</i>
                                                   [Cereus pteranthus]
                                                   [Selenicereus boeckmanni]
                                                   [Selenicereus brevispinus]
                                                   [Selenicereus vaupelii]
                                             <i>Selenicereus purpusii</i>
                                             <i>Selenicereus spinulosus</i>
                                                   [Selenicereus pseudospinulosus]
                                             <i>Selenicereus stenopterus</i>
                                             <i>Selenicereus testudo</i>
                                             <i>Selenicereus triangularis</i>
                                                   [Cactus triangularis]
                                             <i>Selenicereus undatus</i>
                                                   [Hylocereus tricostatus]
                                             <i>Selenicereus vagans</i>
                                             <i>Selenicereus validus</i>
                                             <i>Selenicereus wercklei</i>
                                             <i>Selenicereus wittii</i>
                                                   [Strophocactus wittii]
                                     <i>Stenocactus</i>
                                             <i>Stenocactus coptonogonus</i>
                                                   [Echinofossulocactus coptonogonus]
                                             <i>Stenocactus crispatus</i>
                                                   [Echinocactus lancifer]
                                                   [Echinofossulocactus crispatus]
                                                   [Stenocactus anfractuosus]
                                                   [Stenocactus wippermannii]
                                             <i>Stenocactus multicostatus</i>
                                                   [Echinofossulocactus erectocentrus]
                                                   [Echinofossulocactus lloydii]
                                                   [Echinofossulocactus zacatecasensis]
                                                   [Stenocactus lloydii]
                                                   [Stenocactus zacatecasensis]
                                               <i>Stenocactus multicostatus subsp. zacatecasensis</i>
                                             <i>Stenocactus obvallatus</i>
                                                   [Echinocactus flexispinus]
                                                   [Echinofossulocactus arrigens]
                                                   [Echinofossulocactus caespitosus]
                                                   [Echinofossulocactus confusus]
                                                   [Echinofossulocactus flexispinus]
                                                   [Echinofossulocactus guerraianus]
                                                   [Echinofossulocactus kellerianus]
                                                   [Echinofossulocactus lamellosus]
                                                   [Echinofossulocactus lancifer]
                                                   [Echinofossulocactus multiareolatus]
                                                   [Echinofossulocactus obvallatus]
                                                   [Echinofossulocactus pentacanthus]
                                                   [Echinofossulocactus violaciflorus]
                                                   [Stenocactus arrigens]
                                                   [Stenocactus dichroacanthus]
                                                   [Stenocactus hastatus]
                                                   [Stenocactus lamellosus]
                                                   [Stenocactus lancifer]
                                             <i>Stenocactus ochoterenanus</i>
                                                   [Echinofossulocactus densispinus]
                                                   [Echinofossulocactus heteracanthus]
                                                   [Stenocactus heteracanthus]
                                                   [Stenocactus lexarzai]
                                                   [Stenocactus ochoterenaus]
                                             <i>Stenocactus pentacanthus</i>
                                             <i>Stenocactus phyllacanthus</i>
                                                   [Echinofossulocactus phyllacanthus]
                                                   [Echinofossulocactus tricuspidatus]
                                             <i>Stenocactus sulphureus</i>
                                                   [Echinofossulocactus sulphureus]
                                             <i>Stenocactus vaupelianus</i>
                                                   [Echinofossulocactus albatus]
                                                   [Stenocactus albatus]
                                                   [Stenocactus rectispinus]
                                             <i>Stenocactus ×irregularis</i>
                                               <i>Stenocactus dichroacanthus subsp. violaciflorus</i>
                                     <i>Stenocereus</i>
                                             <i>Stenocereus alamosensis</i>
                                                   [Rathbunia alamosensis var. sonorensis]
                                                   [Rathbunia neosonorensis]
                                                   [Rathbunia sonorensis]
                                             <i>Stenocereus alamosensis x thurberi</i>
                                             <i>Stenocereus aragonii</i>
                                                   [Lemaireocereus aragonii]
                                                   [Pachycereus aragonii]
                                             <i>Stenocereus beneckei</i>
                                                   [Lemaireocereus beneckei]
                                             <i>Stenocereus chacalapensis</i>
                                             <i>Stenocereus chrysocarpus</i>
                                             <i>Stenocereus dumortieri</i>
                                             <i>Stenocereus eichlamii</i>
                                                   [Lemaireocereus eichlamii]
                                                   [Lemaireocereus longispinus]
                                                   [Pachycereus eichlamii]
                                                   [Ritterocereus eichlamii]
                                                   [Stenocereus longispinus]
                                             <i>Stenocereus eruca</i>
                                                   [Cereus eruca]
                                                   [Lemaireocereus eruca]
                                             <i>Stenocereus fimbriatus</i>
                                             <i>Stenocereus fricii</i>
                                             <i>Stenocereus griseus</i>
                                                   [Cereus griseus]
                                                   [Lemaireocereus deficiens]
                                                   [Lemaireocereus griseus]
                                                   [Ritterocereus deficiens]
                                                   [Ritterocereus griseus]
                                                   [Stenocereus deficiens]
                                             <i>Stenocereus gummosus</i>
                                             <i>Stenocereus huastecorum</i>
                                             <i>Stenocereus humilis</i>
                                                   [Armatocereus humilis]
                                                   [Lemaireocereus humilis]
                                             <i>Stenocereus hystrix</i>
                                                   [Ritterocereus hystrix]
                                             <i>Stenocereus kerberi</i>
                                                   [Rathbunia kerberi]
                                             <i>Stenocereus littoralis</i>
                                                   [Stenocereus thurberi subsp. littoralis]
                                             <i>Stenocereus marginatus</i>
                                             <i>Stenocereus martinezii</i>
                                                   [Lemaireocereus martinezii]
                                             <i>Stenocereus montanus</i>
                                             <i>Stenocereus pruinosus</i>
                                                   [Cereus pruinosus]
                                                   [Ritterocereus laevigatus]
                                                   [Ritterocereus pruinosus]
                                                   [Stenocereus laevigatus]
                                             <i>Stenocereus queretaroensis</i>
                                                   [Lemaireocereus queretaroensis]
                                                   [Ritterocereus queretaroensis]
                                             <i>Stenocereus quevedonis</i>
                                                   [Lemaireocereus quevedonis]
                                             <i>Stenocereus standleyi</i>
                                                   [Lemaireocereus standleyi]
                                                   [Ritterocereus standleyi]
                                             <i>Stenocereus stellatus</i>
                                                   [Lemaireocereus stellatus]
                                             <i>Stenocereus thurberi</i>
                                                   [Cereus thurberi]
                                                   [Lamaireocereus thurberi]
                                                   [Lemaireocereus thurberi]
                                                   [Pachycereus thurberi]
                                               <i>Stenocereus thurberi subsp. thurberi</i>
                                               <i>Stenocereus thurberi var. thurberi</i>
                                                     [Lemaireocereus thurberi var. thurberi]
                                             <i>Stenocereus treleasei</i>
                                                   [Lemaireocereus treleasei]
                                             <i>Stenocereus yunckeri</i>
                                             <i>Stenocereus zopilotensis</i>
                                     <i>Stephanocereus</i>
                                             <i>Stephanocereus leucostele</i>
                                                   [Cephalocereus leucostele]
                                             <i>Stephanocereus luetzelburgii</i>
                                                   [Pilosocereus luetzelburgii]
                                     <i>Stetsonia</i>
                                             <i>Stetsonia coryne</i>
                                                   [Cereus chacoanus]
                                     <i>Strombocactus</i>
                                             <i>Strombocactus disciformis</i>
                                               <i>Strombocactus disciformis subsp. disciformis</i>
                                                     [Strombocactus jarmilae]
                                               <i>Strombocactus disciformis subsp. esperanzae</i>
                                                     [Strombocactus pulcherrimus]
                                     <i>Strophocactus</i>
                                             <i>Strophocactus chontalensis</i>
                                                   [Nyctocereus chontalensis]
                                                   [Selenicereus chontalensis]
                                             <i>Strophocactus testudo</i>
                                     <i>Sulcorebutia</i>
                                             <i>Sulcorebutia augustinii</i>
                                             <i>Sulcorebutia cintiensis</i>
                                             <i>Sulcorebutia dorana</i>
                                             <i>Sulcorebutia flavissima</i>
                                             <i>Sulcorebutia lecoriensis</i>
                                             <i>Sulcorebutia markusii</i>
                                             <i>Sulcorebutia purpurea</i>
                                             <i>Sulcorebutia santiaginiensis</i>
                                             <i>Sulcorebutia swobodae</i>
                                             <i>Sulcorebutia toroterensis</i>
                                             <i>Sulcorebutia unguispina</i>
                                             <i>Sulcorebutia vilcayensis</i>
                                             <i>Sulcorebutia westii</i>
                                     <i>Tacinga</i>
                                             <i>Tacinga braunii</i>
                                             <i>Tacinga funalis</i>
                                                   [Tacinga atropurpurea]
                                                   [Tacinga funalis subsp. atropurpurea]
                                             <i>Tacinga inamoena</i>
                                                   [Opuntia inamoena]
                                                   [Platyopuntia inamoena]
                                               <i>Tacinga inamoena subsp. inamoena</i>
                                               <i>Tacinga inamoena subsp. subcylindrica</i>
                                             <i>Tacinga lilae</i>
                                                   [Opuntia lilae]
                                             <i>Tacinga palmadora</i>
                                                   [Opuntia palmadora]
                                             <i>Tacinga saxatilis</i>
                                                   [Opuntia saxatilis]
                                                   [Platyopuntia saxatilis]
                                               <i>Tacinga saxatilis subsp. estevesii</i>
                                               <i>Tacinga saxatilis subsp. saxatilis</i>
                                             <i>Tacinga werneri</i>
                                                   [Opuntia werneri]
                                             <i>Tacinga x quipa</i>
                                                   [Opuntia x quipa]
                                     <i>Tephrocactus</i>
                                             <i>Tephrocactus alexanderi</i>
                                                   [Opuntia alexanderi]
                                                   [Opuntia flexuosa]
                                                   [Opuntia halophila]
                                                   [Tephrocactus flexuosus]
                                                   [Tephrocactus geometricus]
                                                   [Tephrocactus microsphaericus]
                                             <i>Tephrocactus aoracanthus</i>
                                                   [Opuntia aoracantha]
                                                   [Tephrocactus ovatus]
                                             <i>Tephrocactus articulatus</i>
                                                   [Opuntia andicola]
                                                   [Opuntia papyracantha]
                                             <i>Tephrocactus bonnieae</i>
                                                   [Maihueniopsis bonnieae]
                                                   [Puna bonnieae]
                                             <i>Tephrocactus minusculus</i>
                                             <i>Tephrocactus molinensis</i>
                                                   [Maihueniopsis molinensis]
                                                   [Opuntia molinensis]
                                             <i>Tephrocactus nigrispinus</i>
                                                   [Opuntia nigrispina]
                                                   [Platyopuntia atroglobosa]
                                                   [Platyopuntia nigrispina]
                                                   [Tephrocactus atroglobosus]
                                             <i>Tephrocactus setiger</i>
                                             <i>Tephrocactus strobiliformis</i>
                                             <i>Tephrocactus weberi</i>
                                                   [Opuntia weberi]
                                     <i>Thelocactus</i>
                                             <i>Thelocactus bicolor</i>
                                                   [Thelocactus bicolor var. pottsii]
                                               <i>Thelocactus bicolor subsp. bicolor</i>
                                                     [Ferocactus bicolor]
                                               <i>Thelocactus bicolor subsp. bolaensis</i>
                                               <i>Thelocactus bicolor subsp. heterochromus</i>
                                               <i>Thelocactus bicolor subsp. schwarzii</i>
                                               <i>Thelocactus bicolor var. bicolor</i>
                                               <i>Thelocactus bicolor var. flavidispinus</i>
                                                     [Echinocactus flavidispinus]
                                                     [Thelocactus bicolor subsp. flavidispinus]
                                               <i>Thelocactus bicolor var. schottii</i>
                                             <i>Thelocactus buekii</i>
                                                   [Thelocactus tulensis subsp. matudae]
                                             <i>Thelocactus conothelos</i>
                                               <i>Thelocactus conothelos subsp. argenteus</i>
                                               <i>Thelocactus conothelos subsp. aurantiacus</i>
                                               <i>Thelocactus conothelos subsp. conothelos</i>
                                                     [Pediocactus smithii]
                                               <i>Thelocactus conothelos subsp. garciae</i>
                                                     [Thelocactus garciae]
                                             <i>Thelocactus hastifer</i>
                                             <i>Thelocactus heterochromus</i>
                                             <i>Thelocactus hexaedrophorus</i>
                                               <i>Thelocactus hexaedrophorus subsp. hexaedrophorus</i>
                                               <i>Thelocactus hexaedrophorus subsp. lloydii</i>
                                                     [Thelocactus lloydii]
                                               <i>Thelocactus hexaedrophorus var. hexaedrophorus</i>
                                               <i>Thelocactus hexaedrophorus var. lloydii</i>
                                             <i>Thelocactus lausseri</i>
                                             <i>Thelocactus leucacanthus</i>
                                               <i>Thelocactus leucacanthus subsp. leucacanthus</i>
                                               <i>Thelocactus leucacanthus subsp. schmollii</i>
                                             <i>Thelocactus macdowellii</i>
                                             <i>Thelocactus multicephalus</i>
                                             <i>Thelocactus rinconensis</i>
                                                   [Thelocactus lophothele]
                                               <i>Thelocactus rinconensis subsp. freudenbergeri</i>
                                               <i>Thelocactus rinconensis subsp. hintonii</i>
                                               <i>Thelocactus rinconensis subsp. nidulans</i>
                                               <i>Thelocactus rinconensis subsp. rinconensis</i>
                                             <i>Thelocactus setispinus</i>
                                             <i>Thelocactus tulensis</i>
                                               <i>Thelocactus tulensis subsp. buekii</i>
                                               <i>Thelocactus tulensis subsp. tulensis</i>
                                     <i>Thrixanthocereus</i>
                                     <i>Toumeya</i>
                                             <i>Toumeya macrochele</i>
                                     <i>Trichocereus</i>
                                             <i>Trichocereus auricolor</i>
                                             <i>Trichocereus bertramianus</i>
                                             <i>Trichocereus callianthus</i>
                                             <i>Trichocereus candicans</i>
                                             <i>Trichocereus conaconensis</i>
                                             <i>Trichocereus grandiflorus</i>
                                             <i>Trichocereus litoralis</i>
                                             <i>Trichocereus macrogonus</i>
                                             <i>Trichocereus pachanoi</i>
                                             <i>Trichocereus pasacanus</i>
                                             <i>Trichocereus peruvianus</i>
                                             <i>Trichocereus schickendantzii</i>
                                             <i>Trichocereus skottsbergii</i>
                                             <i>Trichocereus spachianus</i>
                                             <i>Trichocereus tarijensis</i>
                                                   [Trichocereus poco]
                                             <i>Trichocereus terscheckii</i>
                                             <i>Trichocereus thelegonus</i>
                                             <i>Trichocereus totorensis</i>
                                             <i>Trichocereus uyupampensis</i>
                                     <i>Tunilla</i>
                                             <i>Tunilla corrugata</i>
                                                   [Opuntia albisaetacens]
                                                   [Opuntia corrugata]
                                                   [Platyopuntia albisaetacens]
                                                   [Platyopuntia corrugata]
                                                   [Tunilla albisaetacens]
                                             <i>Tunilla erectoclada</i>
                                                   [Opuntia erectoclada]
                                                   [Opuntia ianthinantha]
                                                   [Opuntia picardoi]
                                                   [Platyopuntia ianthinantha]
                                                   [Tunilla ianthinantha]
                                                   [Tunilla picardoi]
                                             <i>Tunilla microdisca</i>
                                                   [Opuntia microdisca]
                                                   [Platyopuntia microdisca]
                                             <i>Tunilla soehrensii</i>
                                                   [Opuntia alcerrecensis]
                                                   [Opuntia minuscula]
                                                   [Opuntia orurensis]
                                                   [Opuntia silvestris]
                                                   [Opuntia soehrensii]
                                                   [Platyopuntia chilensis]
                                                   [Platyopuntia orurensis]
                                                   [Platyopuntia soehrensii]
                                                   [Tephrocactus silvestris]
                                                   [Tunilla chilensis]
                                                   [Tunilla minuscula]
                                                   [Tunilla orurensis]
                                                   [Tunilla silvestris]
                                     <i>Turbinicarpus</i>
                                           [Turbinicarpus roseiflorus]
                                             <i>Turbinicarpus alonsoi</i>
                                                   [Pediocactus alonsoi]
                                             <i>Turbinicarpus beguinii</i>
                                               <i>Turbinicarpus beguinii subsp. beguinii</i>
                                               <i>Turbinicarpus beguinii subsp. hintoniorum</i>
                                               <i>Turbinicarpus beguinii subsp. zaragosae</i>
                                                     [Turbinicarpus subterraneus subsp. zaragosae]
                                                     [Turbinicarpus subterraneus var. zaragosae]
                                                     [Turbinicarpus zaragosae]
                                             <i>Turbinicarpus booleanus</i>
                                             <i>Turbinicarpus gautii</i>
                                             <i>Turbinicarpus gielsdorfianus</i>
                                                   [Pediocactus gielsdorfianus]
                                             <i>Turbinicarpus hoferi</i>
                                                   [Pediocactus hoferi]
                                             <i>Turbinicarpus horripilus</i>
                                                   [Pediocactus horripilus]
                                             <i>Turbinicarpus knuthianus</i>
                                             <i>Turbinicarpus laui</i>
                                                   [Pediocactus laui]
                                             <i>Turbinicarpus lophophoroides</i>
                                                   [Pediocactus lophophoroides]
                                                   [Strombocactus lophophoroides]
                                                   [Toumeya lophophoroides]
                                             <i>Turbinicarpus mandragora</i>
                                                   [Pediocactus mandragora]
                                               <i>Turbinicarpus mandragora subsp. mandragora</i>
                                               <i>Turbinicarpus mandragora subsp. pailanus</i>
                                             <i>Turbinicarpus pseudomacrochele</i>
                                                   [Pediocactus pseudomacrochele]
                                                   [Strombocactus pseudomacrochele]
                                                   [Toumeya pseudomacrochele]
                                               <i>Turbinicarpus pseudomacrochele subsp. krainzianus</i>
                                                     [Pediocactus pseudomacrochele var. krainzianus]
                                                     [Strombocactus pseudomacrochele var. krainzianus]
                                                     [Toumeya krainziana]
                                                     [Toumeya pseudomacrochele var. krainziana]
                                                     [Turbinicarpus krainzianus]
                                               <i>Turbinicarpus pseudomacrochele subsp. lausseri</i>
                                                     [Pediocactus pseudomacrochele var. lausseri]
                                               <i>Turbinicarpus pseudomacrochele subsp. minimus</i>
                                               <i>Turbinicarpus pseudomacrochele subsp. pseudomacrochele</i>
                                             <i>Turbinicarpus pseudopectinatus</i>
                                                   [Pediocactus pseudopectinatus]
                                                   [Pelecyphora pseudopectinata]
                                             <i>Turbinicarpus saueri</i>
                                                   [Pediocactus saueri]
                                               <i>Turbinicarpus saueri subsp. knuthianus</i>
                                               <i>Turbinicarpus saueri subsp. nelissae</i>
                                               <i>Turbinicarpus saueri subsp. saueri</i>
                                                     [Echinocactus saueri]
                                             <i>Turbinicarpus schmiedickeanus</i>
                                                   [Echinocactus schmiedickeanus]
                                                   [Strombocactus schmiedickeanus]
                                                   [Toumeya schmiedickeana]
                                               <i>Turbinicarpus schmiedickeanus subsp. andersonii</i>
                                                     [Turbinicarpus macrochele subsp. andersonii]
                                                     [Turbinicarpus schmiedickeanus var. panarottoi]
                                               <i>Turbinicarpus schmiedickeanus subsp. bonatzii</i>
                                                     [Pediocactus bonatzii]
                                                     [Turbinicarpus bonatzii]
                                               <i>Turbinicarpus schmiedickeanus subsp. dickisoniae</i>
                                                     [Pediocactus schmiedickeanus var. dickisoniae]
                                                     [Turbinicarpus schmiedickeanus subsp. dicksoniae]
                                               <i>Turbinicarpus schmiedickeanus subsp. flaviflorus</i>
                                                     [Pediocactus schmiedickeanus var. flaviflorus]
                                                     [Turbinicarpus flaviflorus]
                                                     [Turbinicarpus macrochele subsp. flaviflorus]
                                                     [Turbinicarpus schmiedickeanus var. flaviflorus]
                                               <i>Turbinicarpus schmiedickeanus subsp. gracilis</i>
                                                     [Pediocactus schmiedickeanus var. gracilis]
                                                     [Turbinicarpus gracilis]
                                                     [Turbinicarpus schmiedickeanus var. gracilis]
                                               <i>Turbinicarpus schmiedickeanus subsp. jauernigii</i>
                                                     [Turbinicarpus jauernigii]
                                               <i>Turbinicarpus schmiedickeanus subsp. klinkerianus</i>
                                                     [Pediocactus schmiedickeanus var. klinkerianus]
                                                     [Strombocactus klinkerianus]
                                                     [Strombocactus schmiedickeanus var. klinkerianus]
                                                     [Toumeya klinkeriana]
                                                     [Toumeya schmiedickeana var. klinkeriana]
                                                     [Turbinicarpus klinkerianus]
                                                     [Turbinicarpus macrochele subsp. klinkerianus]
                                               <i>Turbinicarpus schmiedickeanus subsp. macrochele</i>
                                                     [Pediocactus schmiedickeanus var. macrochele]
                                                     [Turbinicarpus macrochele]
                                               <i>Turbinicarpus schmiedickeanus subsp. rioverdensis</i>
                                                     [Pediocactus rioverdensis]
                                                     [Turbinicarpus rioverdensis]
                                               <i>Turbinicarpus schmiedickeanus subsp. rubriflorus</i>
                                                     [Pediocactus schmiedickeanus var. rubriflorus]
                                               <i>Turbinicarpus schmiedickeanus subsp. schmiedickeanus</i>
                                                     [Pediocactus schmiedickeanus]
                                               <i>Turbinicarpus schmiedickeanus subsp. schwarzii</i>
                                                     [Pediocactus schmiedickeanus var. schwarzii]
                                                     [Strombocactus schwarzii]
                                                     [Toumeya macrochele var. schwarzii]
                                                     [Toumeya schwarzii]
                                                     [Turbinicarpus macrochele subsp. schwarzii]
                                                     [Turbinicarpus polaskii]
                                                     [Turbinicarpus schwarzii]
                                               <i>Turbinicarpus schmiedickeanus var. klinkerianus</i>
                                               <i>Turbinicarpus schmiedickeanus var. macrochele</i>
                                               <i>Turbinicarpus schmiedickeanus var. schmiedickeanus</i>
                                               <i>Turbinicarpus schmiedickeanus var. schwarzii</i>
                                             <i>Turbinicarpus subterraneus</i>
                                                   [Pediocactus subterraneus]
                                               <i>Turbinicarpus subterraneus subsp. booleanus</i>
                                               <i>Turbinicarpus subterraneus subsp. subterraneus</i>
                                               <i>Turbinicarpus subterraneus var. subterraneus</i>
                                             <i>Turbinicarpus swobodae</i>
                                                   [Pediocactus swobodae]
                                             <i>Turbinicarpus valdezianus</i>
                                                   [Pediocactus valdezianus]
                                             <i>Turbinicarpus viereckii</i>
                                                   [Pediocactus viereckii]
                                                   [Turbinicarpus viereckii subsp. major]
                                                   [Turbinicarpus viereckii subsp. viereckii]
                                             <i>Turbinicarpus x mombergeri</i>
                                             <i>Turbinicarpus ysabelae</i>
                                             <i>Turbinicarpus zaragozae</i>
                                     <i>Uebelmannia</i>
                                             <i>Uebelmannia buiningii</i>
                                             <i>Uebelmannia gummifera</i>
                                                   [Parodia gummifera]
                                               <i>Uebelmannia gummifera subsp. gummifera</i>
                                               <i>Uebelmannia gummifera subsp. meninensis</i>
                                             <i>Uebelmannia meninensis</i>
                                             <i>Uebelmannia pectinifera</i>
                                                   [Uebelmannia pectinifera var. pseudopectinifera]
                                               <i>Uebelmannia pectinifera subsp. flavispina</i>
                                                     [Uebelmannia flavispina]
                                               <i>Uebelmannia pectinifera subsp. horrida</i>
                                               <i>Uebelmannia pectinifera subsp. pectinifera</i>
                                     <i>Utahia</i>
                                     <i>Weberbauerocereus</i>
                                             <i>Weberbauerocereus albus</i>
                                                   [Haageocereus longicomus]
                                                   [Weberbauerocereus longicomus]
                                             <i>Weberbauerocereus cephalomacrostibas</i>
                                                   [Haageocereus cephalomacrostibas]
                                                   [Trichocereus cephalomacrostibas]
                                             <i>Weberbauerocereus churinensis</i>
                                                   [Haageocereus churinensis]
                                             <i>Weberbauerocereus cuzcoensis</i>
                                                   [Haageocereus cuzcoensis]
                                             <i>Weberbauerocereus johnsonii</i>
                                                   [Haageocereus limensis]
                                             <i>Weberbauerocereus rauhii</i>
                                                   [Haageocereus rauhii]
                                             <i>Weberbauerocereus weberbaueri</i>
                                                   [Haageocereus torataensis]
                                                   [Haageocereus weberbaueri]
                                                   [Weberbauerocereus horridispinus]
                                                   [Weberbauerocereus seyboldianus]
                                                   [Weberbauerocereus torataensis]
                                             <i>Weberbauerocereus winterianus</i>
                                                   [Haageocereus johnsonii]
                                                   [Haageocereus winterianus]
                                     <i>Weberocereus</i>
                                             <i>Weberocereus bradei</i>
                                             <i>Weberocereus frohningiorum</i>
                                             <i>Weberocereus glaber</i>
                                                   [Werckleocereus glaber]
                                               <i>Weberocereus glaber subsp. glaber</i>
                                               <i>Weberocereus glaber subsp. mirandae</i>
                                             <i>Weberocereus imitans</i>
                                                   [Eccremocactus imitans]
                                                   [Werckleocereus imitans]
                                             <i>Weberocereus rosei</i>
                                                   [Eccremocactus rosei]
                                             <i>Weberocereus tonduzii</i>
                                                   [Werckleocereus tonduzii]
                                             <i>Weberocereus trichophorus</i>
                                             <i>Weberocereus tunilla</i>
                                               <i>Weberocereus tunilla subsp. biolleyi</i>
                                                     [Weberocereus biolleyi]
                                                     [Weberocereus panamensis]
                                               <i>Weberocereus tunilla subsp. tunilla</i>
                                                     [Cereus gonzalezii]
                                     <i>Weingartia</i>
                                             <i>Weingartia albissima</i>
                                             <i>Weingartia cintiensis</i>
                                             <i>Weingartia flavissima</i>
                                             <i>Weingartia formosa</i>
                                             <i>Weingartia lecoriensis</i>
                                             <i>Weingartia markusii</i>
                                             <i>Weingartia purpurea</i>
                                             <i>Weingartia torotorensis</i>
                                             <i>Weingartia vilcayensis</i>
                                             <i>Weingartia westii</i>
                                     <i>Werckleocereus</i>
                                     <i>Wigginsia</i>
                                             <i>Wigginsia fricii</i>
                                     <i>Wilcoxia</i>
                                             <i>Wilcoxia mariana</i>
                                     <i>Wittia</i>
                                             <i>Wittia amazonica</i>
                                     <i>Xborzipostoa</i>
                                     <i>Xhaagespostoa</i>
                                     <i>Yavia</i>
                                             <i>Yavia cryptocarpa</i>
                                     <i>Yungasocereus</i>
                                             <i>Yungasocereus inquisivensis</i>
                                     <i>Zygocactus</i>

Problematic Rooting (249982)
                                               <i>Weingartia fidaiana subsp. fidaiana</i>
                                                     [Gymnocalycium westii]

Problematic Rooting (26913)
                                               <i>Coryphantha sneedii var. leei</i>
                                               <i>Coryphantha sneedii var. sneedii</i>

Problematic Rooting (341938)
                                               <i>Ferocactus wislizenii subsp. wislizenii</i>
                                                     [Ferocactus wislizeni var. ajoensis]

Problematic Rooting (69374)
                                               <i>Borzicactus icosagonus subsp. humboldtii</i>