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           [Tracheobionta]
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             [Angiospermae]
         Eudicots
             Core Eudicots
               Asterids
               Lamiids
                    Gentianales
                            <b>Loganiaceae</b>
                                     <i>Antonia</i>
                                             <i>Antonia ovata</i>
                                     <i>Artherstonea</i>
                                     <i>Bigonia</i>
                                     <i>Bonyunia</i>
                                     <i>Coelostylis</i>
                                             <i>Coelostylis loganioides</i>
                                     <i>Couthovia</i>
                                     <i>Cynoctonum</i>
                                             <i>Cynoctonum mitreola</i>
                                             <i>Cynoctonum petiolatum</i>
                                             <i>Cynoctonum succulentum</i>
                                     <i>Gardneria</i>
                                             <i>Gardneria angustifolia</i>
                                             <i>Gardneria multiflora</i>
                                                   [Gardneria shimadai]
                                             <i>Gardneria ovata</i>
                                     <i>Geniostoma</i>
                                             <i>Geniostoma antherotrichum</i>
                                             <i>Geniostoma australianum</i>
                                             <i>Geniostoma clavatum</i>
                                             <i>Geniostoma cyrtandrae</i>
                                                   [Labordia hypoleuca]
                                             <i>Geniostoma erythrospermum</i>
                                             <i>Geniostoma glaucescens</i>
                                             <i>Geniostoma hedyosmifolium</i>
                                                   [Labordia grayana]
                                             <i>Geniostoma hendersonense</i>
                                             <i>Geniostoma ligustrifolium</i>
                                             <i>Geniostoma micranthum</i>
                                               <i>Geniostoma micranthum var. hoeferi</i>
                                               <i>Geniostoma micranthum var. micranthum</i>
                                             <i>Geniostoma pedunculatum</i>
                                             <i>Geniostoma rupestre</i>
                                                   [Geniostoma clavigerum]
                                                   [Geniostoma cumingianum]
                                                   [Geniostoma insulare]
                                               <i>Geniostoma rupestre var. crassifolium</i>
                                                     [Geniostoma pancheri]
                                               <i>Geniostoma rupestre var. glaberrimum</i>
                                                     [Geniostoma glaberrimum]
                                               <i>Geniostoma rupestre var. ligustrifolium</i>
                                               <i>Geniostoma rupestre var. rupestre</i>
                                             <i>Geniostoma sykesii</i>
                                             <i>Geniostoma tinifolium</i>
                                                   [Labordia tinifolia var. honolulensis]
                                             <i>Geniostoma vestitum</i>
                                             <i>Geniostoma weinlandii</i>
                                     <i>Goniostoma</i>
                                     <i>Ignatia</i>
                                     <i>Labordia</i>
                                             <i>Labordia baillonii</i>
                                             <i>Labordia cyrtandrae</i>
                                               <i>Labordia cyrtandrae var. nahikuana</i>
                                             <i>Labordia decurrens</i>
                                               <i>Labordia decurrens var. pocillata</i>
                                             <i>Labordia degeneri</i>
                                               <i>Labordia degeneri var. subcarinata</i>
                                             <i>Labordia fagraeoidea</i>
                                               <i>Labordia fagraeoidea var. conferta</i>
                                               <i>Labordia fagraeoidea var. hillebrandii</i>
                                               <i>Labordia fagraeoidea var. humei</i>
                                               <i>Labordia fagraeoidea var. jugorum</i>
                                               <i>Labordia fagraeoidea var. longisepala</i>
                                               <i>Labordia fagraeoidea var. multinervia</i>
                                               <i>Labordia fagraeoidea var. saint-johniana</i>
                                               <i>Labordia fagraeoidea var. septentrionalis</i>
                                               <i>Labordia fagraeoidea var. sessilis</i>
                                               <i>Labordia fagraeoidea var. simulans</i>
                                               <i>Labordia fagraeoidea var. waianaeana</i>
                                             <i>Labordia glabra</i>
                                               <i>Labordia glabra var. latisepala</i>
                                               <i>Labordia glabra var. orientalis</i>
                                             <i>Labordia hedyosmifolia</i>
                                                   [Labordia nelsoni]
                                               <i>Labordia hedyosmifolia var. centralis</i>
                                               <i>Labordia hedyosmifolia var. grayana</i>
                                               <i>Labordia hedyosmifolia var. hosakana</i>
                                               <i>Labordia hedyosmifolia var. kilaueana</i>
                                               <i>Labordia hedyosmifolia var. magnifolia</i>
                                               <i>Labordia hedyosmifolia var. robusta</i>
                                               <i>Labordia hedyosmifolia var. rockii</i>
                                               <i>Labordia hedyosmifolia var. skottsbergii</i>
                                             <i>Labordia helleri</i>
                                               <i>Labordia helleri var. macrocarpa</i>
                                             <i>Labordia hirtella</i>
                                               <i>Labordia hirtella var. haleakalana</i>
                                               <i>Labordia hirtella var. hispidior</i>
                                               <i>Labordia hirtella var. imbricata</i>
                                               <i>Labordia hirtella var. laevis</i>
                                               <i>Labordia hirtella var. laevisepala</i>
                                               <i>Labordia hirtella var. microcalyx</i>
                                               <i>Labordia hirtella var. microphylla</i>
                                               <i>Labordia hirtella var. sororia</i>
                                             <i>Labordia hosakana</i>
                                             <i>Labordia hymenopoda</i>
                                             <i>Labordia kaalae</i>
                                               <i>Labordia kaalae var. brachypoda</i>
                                               <i>Labordia kaalae var. fosbergii</i>
                                               <i>Labordia kaalae var. kauaiensis</i>
                                               <i>Labordia kaalae var. mendax</i>
                                             <i>Labordia lorenceana</i>
                                             <i>Labordia lydgatei</i>
                                             <i>Labordia mauiensis</i>
                                             <i>Labordia membranacea</i>
                                               <i>Labordia membranacea var. exigua</i>
                                             <i>Labordia molokaiana</i>
                                               <i>Labordia molokaiana var. bryanii</i>
                                               <i>Labordia molokaiana var. congesta</i>
                                               <i>Labordia molokaiana var. lophocarpa</i>
                                               <i>Labordia molokaiana var. munroi</i>
                                               <i>Labordia molokaiana var. phyllocalyx</i>
                                               <i>Labordia molokaiana var. setosa</i>
                                             <i>Labordia nelsonii</i>
                                             <i>Labordia nervosa</i>
                                             <i>Labordia olympiana</i>
                                             <i>Labordia pallida</i>
                                               <i>Labordia pallida var. hispidula</i>
                                             <i>Labordia pedunculata</i>
                                             <i>Labordia pumila</i>
                                             <i>Labordia sessilis</i>
                                             <i>Labordia tinifolia</i>
                                               <i>Labordia tinifolia var. euphorbioidea</i>
                                               <i>Labordia tinifolia var. forbesii</i>
                                               <i>Labordia tinifolia var. haupuensis</i>
                                               <i>Labordia tinifolia var. honoluluensis</i>
                                               <i>Labordia tinifolia var. lanaiensis</i>
                                               <i>Labordia tinifolia var. leptantha</i>
                                               <i>Labordia tinifolia var. microgyna</i>
                                               <i>Labordia tinifolia var. parvifolia</i>
                                               <i>Labordia tinifolia var. tenuifolia</i>
                                               <i>Labordia tinifolia var. tinifolia</i>
                                               <i>Labordia tinifolia var. wahiawaensis</i>
                                               <i>Labordia tinifolia var. waialuana</i>
                                             <i>Labordia triflora</i>
                                             <i>Labordia venosa</i>
                                             <i>Labordia waialealae</i>
                                             <i>Labordia waiolani</i>
                                             <i>Labordia wawrana</i>
                                     <i>Logania</i>
                                             <i>Logania albiflora</i>
                                                   [Logania floribunda]
                                             <i>Logania linifolia</i>
                                             <i>Logania populifolia</i>
                                                   [Tabernaemontana populifolia]
                                             <i>Logania saxatilis</i>
                                             <i>Logania vaginalis</i>
                                     <i>Mitrasacme</i>
                                             <i>Mitrasacme alsinoides</i>
                                             <i>Mitrasacme connata</i>
                                             <i>Mitrasacme erophila</i>
                                             <i>Mitrasacme nudicaulis</i>
                                             <i>Mitrasacme polymorpha</i>
                                             <i>Mitrasacme prolifera</i>
                                                   [Mitrasacme indica]
                                             <i>Mitrasacme pygmaea</i>
                                                   [Mitrasacme pygmaea var. malaccensis]
                                     <i>Mitreola</i>
                                             <i>Mitreola petiolata</i>
                                                   [Cynoctonum oldenlandioides]
                                                   [Mitreola oldenlandioides]
                                                   [Mitreola tracyi]
                                                   [Ophiorrhiza lanceolata]
                                             <i>Mitreola sessilifolia</i>
                                                   [Cynoctonum angustifolium]
                                                   [Cynoctonum sessilifolium var. angustifolium]
                                                   [Cynoctonum sessilifolium var. microphyllum]
                                                   [Cynoctonum sessilifolium var. sessilifolium]
                                                   [Cynoctonum sessilifolium]
                                                   [Mitreola angustifolia]
                                     <i>Monodynamis</i>
                                     <i>Neuburgia</i>
                                             <i>Neuburgia alata</i>
                                             <i>Neuburgia celebica</i>
                                                   [Couthovia celebica]
                                             <i>Neuburgia collina</i>
                                             <i>Neuburgia corynocarpa</i>
                                             <i>Neuburgia kochii</i>
                                             <i>Neuburgia novocaledonica</i>
                                             <i>Neuburgia rumphiana</i>
                                     <i>Norrisia</i>
                                             <i>Norrisia maior</i>
                                             <i>Norrisia malaccensis</i>
                                     <i>Orianthera</i>
                                             <i>Orianthera nuda</i>
                                                   [Logania nuda]
                                             <i>Orianthera serpyllifolia</i>
                                               <i>Orianthera serpyllifolia subsp. serpyllifolia</i>
                                                     [Logania serpyllifolia]
                                     <i>Phyllangium</i>
                                             <i>Phyllangium divergens</i>
                                             <i>Phyllangium sulcatum</i>
                                     <i>Scyphostrychnos</i>
                                     <i>Spigelia</i>
                                             <i>Spigelia aceifolia</i>
                                             <i>Spigelia alabamensis</i>
                                             <i>Spigelia anthelmia</i>
                                                   [Spigelia anthelmia var. nervosa]
                                                   [Spigelia multispica var. discolor]
                                                   [Spigelia nervosa]
                                             <i>Spigelia beyrichiana</i>
                                                   [Spigelia dusenii]
                                             <i>Spigelia caaguazuensis</i>
                                             <i>Spigelia carnosa</i>
                                             <i>Spigelia chiapensis</i>
                                             <i>Spigelia coelostylioides</i>
                                             <i>Spigelia flemmingiana</i>
                                                   [Spigelia sessilifolia]
                                             <i>Spigelia fontellae</i>
                                             <i>Spigelia gentianoides</i>
                                               <i>Spigelia gentianoides gentianoides</i>
                                               <i>Spigelia gentianoides var. alabamensis</i>
                                               <i>Spigelia gentianoides var. gentianoides</i>
                                             <i>Spigelia guianensis</i>
                                                   [Spigelia ambigua]
                                                   [Spigelia humilis]
                                             <i>Spigelia hamelioides</i>
                                                   [Spigelia multispica]
                                             <i>Spigelia hamellioides</i>
                                                   [Spigelia filipes]
                                             <i>Spigelia humboldtiana</i>
                                                   [Spigelia guaranitica]
                                                   [Spigelia quaternata]
                                             <i>Spigelia hurleyi</i>
                                             <i>Spigelia leiocarpa</i>
                                             <i>Spigelia lindheimeri</i>
                                                   [Spigelia hedyotidea]
                                             <i>Spigelia loganioides</i>
                                             <i>Spigelia longiflora</i>
                                             <i>Spigelia marilandica</i>
                                             <i>Spigelia mexicana</i>
                                             <i>Spigelia nicotianiflora</i>
                                             <i>Spigelia palmeri</i>
                                             <i>Spigelia pedunculata</i>
                                             <i>Spigelia petiolata</i>
                                             <i>Spigelia polystachya</i>
                                             <i>Spigelia pusilla</i>
                                                   [Spigelia pauciflora]
                                             <i>Spigelia pygmaea</i>
                                             <i>Spigelia riedeliana</i>
                                             <i>Spigelia rojasiana</i>
                                             <i>Spigelia scabra</i>
                                             <i>Spigelia scabrella</i>
                                             <i>Spigelia sellowiana</i>
                                             <i>Spigelia spartioides</i>
                                             <i>Spigelia speciosa</i>
                                             <i>Spigelia sphagnicola</i>
                                             <i>Spigelia splendens</i>
                                             <i>Spigelia tetraptera</i>
                                             <i>Spigelia texana</i>
                                                   [Coelostylis texana]
                                             <i>Spigelia trispicata</i>
                                             <i>Spigelia valenzuelae</i>
                                             <i>Spigelia vestita</i>
                                     <i>Strychnos</i>
                                             <i>Strychnos aculeata</i>
                                                   [Strychnos mortehanii]
                                                   [Strychnos pseudo-jollyana]
                                             <i>Strychnos afzelii</i>
                                                   [Strychnos caryophyllus]
                                                   [Strychnos erythrocarpa]
                                                   [Strychnos viridescens]
                                                   [Strychnos zizyphoides]
                                             <i>Strychnos amazonica</i>
                                             <i>Strychnos angolensis</i>
                                                   [Strychnos angolensis var. lacourtiana]
                                                   [Strychnos angolensis var. latifolia]
                                                   [Strychnos angolensis var. tanganykae]
                                                   [Strychnos angolensis var. tisserantii]
                                                   [Strychnos bequaertii]
                                                   [Strychnos cinnabarina var. ctenotricha]
                                                   [Strychnos cinnabarina var. klaineana]
                                                   [Strychnos cinnabarina]
                                                   [Strychnos hippocrateoides]
                                                   [Strychnos lacourtiana]
                                                   [Strychnos likimiensis]
                                                   [Strychnos mongonda]
                                                   [Strychnos nauphylla]
                                                   [Strychnos tuvungasala]
                                             <i>Strychnos angustiflora</i>
                                             <i>Strychnos asperula</i>
                                             <i>Strychnos asterantha</i>
                                             <i>Strychnos axillaris</i>
                                             <i>Strychnos barteri</i>
                                             <i>Strychnos benthami</i>
                                             <i>Strychnos boonei</i>
                                             <i>Strychnos brachiata</i>
                                             <i>Strychnos brachistantha</i>
                                             <i>Strychnos brasiliensis</i>
                                             <i>Strychnos bredemeyeri</i>
                                             <i>Strychnos campicola</i>
                                             <i>Strychnos camptoneura</i>
                                                   [Scyphostrychnos psittaconyx]
                                                   [Scyphostrychnos talbotii]
                                             <i>Strychnos canthioides</i>
                                             <i>Strychnos cathayensis</i>
                                             <i>Strychnos cayennensis</i>
                                             <i>Strychnos chlorantha</i>
                                             <i>Strychnos chromatoxylon</i>
                                             <i>Strychnos chrysophylla</i>
                                                   [Strychnos eketensis]
                                             <i>Strychnos cocculoides</i>
                                                   [Strychnos dekindtiana]
                                                   [Strychnos goetzei]
                                                   [Strychnos paralleloneura]
                                                   [Strychnos schumanniana]
                                                   [Strychnos suberifera]
                                                   [Strychnos suberosa]
                                                   [Strychnos thomsiana var. elegans]
                                                   [Strychnos thomsiana]
                                             <i>Strychnos cogens</i>
                                             <i>Strychnos colombiensis</i>
                                             <i>Strychnos colubrina</i>
                                             <i>Strychnos congolana</i>
                                                   [Strychnos lecomtei]
                                                   [Strychnos transiens]
                                                   [Strychnos viridiflora]
                                             <i>Strychnos cuminodora</i>
                                             <i>Strychnos cuniculina</i>
                                             <i>Strychnos dale</i>
                                                   [Strychnos trillesiana]
                                             <i>Strychnos darienensis</i>
                                             <i>Strychnos decussata</i>
                                                   [Artherstonea decussata]
                                                   [Strychnos atherstonei]
                                                   [Strychnos boinensis]
                                                   [Strychnos greveana]
                                             <i>Strychnos densiflora</i>
                                                   [Strychnos chlorocarpa]
                                                   [Strychnos hirsutostylosa]
                                                   [Strychnos suaveolens]
                                             <i>Strychnos diaboli</i>
                                             <i>Strychnos dinklagei</i>
                                             <i>Strychnos dolichothyrsa</i>
                                             <i>Strychnos elaeocarpa</i>
                                             <i>Strychnos erichsonii</i>
                                             <i>Strychnos fallax</i>
                                             <i>Strychnos floribunda</i>
                                                   [Strychnos littoralis]
                                                   [Strychnos malifolia]
                                                   [Strychnos marquesii]
                                                   [Strychnos microcarpa]
                                                   [Strychnos moloneyi]
                                                   [Strychnos subscandens]
                                                   [Strychnos welwitschii]
                                             <i>Strychnos gnetifolia</i>
                                             <i>Strychnos gossweileri</i>
                                                   [Strychnos caespitosa]
                                             <i>Strychnos grayi</i>
                                             <i>Strychnos gubleri</i>
                                             <i>Strychnos guianensis</i>
                                             <i>Strychnos henningsii</i>
                                                   [Strychnos albersii]
                                                   [Strychnos barbata]
                                                   [Strychnos elliottii]
                                                   [Strychnos holstii f. condensata]
                                                   [Strychnos holstii f. laxiuscula]
                                                   [Strychnos holstii var. procera]
                                                   [Strychnos holstii]
                                                   [Strychnos ligustroides]
                                                   [Strychnos myrcioides]
                                                   [Strychnos pauciflora]
                                                   [Strychnos procera]
                                                   [Strychnos reticulata]
                                                   [Strychnos sennensis]
                                             <i>Strychnos hirsuta</i>
                                             <i>Strychnos icaja</i>
                                                   [Strychnos brachyura]
                                                   [Strychnos dewevrei]
                                                   [Strychnos dundusanensis]
                                                   [Strychnos kipapa]
                                                   [Strychnos mildbraedii]
                                                   [Strychnos pusilliflora]
                                                   [Strychnos venulosa]
                                             <i>Strychnos ignatii</i>
                                                   [Strychnos cuspidata]
                                             <i>Strychnos innocua</i>
                                                   [Strychnos alnifolia]
                                                   [Strychnos dschurica]
                                                   [Strychnos edulis]
                                                   [Strychnos fischeri]
                                                   [Strychnos huillensis]
                                                   [Strychnos innocua var. pubescens]
                                                   [Strychnos kongofera]
                                                   [Strychnos penduliflora]
                                                   [Strychnos simiarum]
                                                   [Strychnos triclisioides]
                                                   [Strychnos unguacha var. dschurica]
                                                   [Strychnos unguacha var. grandifolia]
                                                   [Strychnos unguacha var. microcarpa]
                                                   [Strychnos unguacha var. obovata]
                                                   [Strychnos unguacha var. polyantha]
                                                   [Strychnos unguacha var. pubescens]
                                                   [Strychnos unguacha var. steudneri]
                                                   [Strychnos unguacha var. typica]
                                                   [Strychnos unguacha]
                                                   [Strychnos xerophila]
                                                   [Unguacha simiarum]
                                             <i>Strychnos javariensis</i>
                                             <i>Strychnos jobertiana</i>
                                             <i>Strychnos johnsonii</i>
                                                   [Strychnos gonioides]
                                                   [Strychnos quadrangularis]
                                             <i>Strychnos kasengaensis</i>
                                                   [Strychnos vanderystii]
                                             <i>Strychnos longicaudata</i>
                                                   [Strychnos brevicymosa]
                                                   [Strychnos longicaudata var. niamniamensis]
                                                   [Strychnos niamniamensis]
                                                   [Strychnos nigrovillosa]
                                             <i>Strychnos lucens</i>
                                                   [Strychnos loandensis]
                                                   [Strychnos milneredheadii]
                                             <i>Strychnos luzonensis</i>
                                             <i>Strychnos maboca</i>
                                             <i>Strychnos madagascariensis</i>
                                                   [Strychnos bakanko]
                                                   [Strychnos behrensiana]
                                                   [Strychnos burtonii]
                                                   [Strychnos dysophylla subsp. engleri]
                                                   [Strychnos dysophylla]
                                                   [Strychnos engleri]
                                                   [Strychnos innocua subsp. burtonii]
                                                   [Strychnos innocua subsp. dysophylla]
                                                   [Strychnos innocua var. glabra]
                                                   [Strychnos leiocarpa]
                                                   [Strychnos melonicarpa]
                                                   [Strychnos pachyphylla]
                                                   [Strychnos polyphylla]
                                                   [Strychnos quaqua]
                                                   [Strychnos randiaeformis]
                                                   [Strychnos stenoneura]
                                                   [Strychnos unguacha var. dysophylla]
                                                   [Strychnos unguacha var. micrantha]
                                                   [Strychnos wakefieldii]
                                             <i>Strychnos malacoclados</i>
                                                   [Strychnos hankei]
                                                   [Strychnos limbogeton]
                                                   [Strychnos pansa]
                                             <i>Strychnos malchairii</i>
                                             <i>Strychnos matopensis</i>
                                             <i>Strychnos mattogrossensis</i>
                                             <i>Strychnos medeola</i>
                                             <i>Strychnos melastomatoides</i>
                                                   [Strychnos syringiflora]
                                             <i>Strychnos melinoniana</i>
                                             <i>Strychnos mellodora</i>
                                                   [Gaertnera zimmermannii]
                                             <i>Strychnos memecyloides</i>
                                                   [Strychnos memecyloides var. effusior]
                                             <i>Strychnos millepunctata</i>
                                             <i>Strychnos mimfiensis</i>
                                             <i>Strychnos minor</i>
                                                   [Strychnos micrantha]
                                                   [Strychnos multiflora]
                                             <i>Strychnos mitis</i>
                                                   [Strychnos adolphi-fredericii]
                                             <i>Strychnos mitscherlichii</i>
                                               <i>Strychnos mitscherlichii var. pubescentior</i>
                                             <i>Strychnos moandaensis</i>
                                                   [Strychnos decorsei]
                                             <i>Strychnos mostueoides</i>
                                             <i>Strychnos myrtoides</i>
                                             <i>Strychnos ndengensis</i>
                                             <i>Strychnos ngouniensis</i>
                                                   [Strychnos phaeopoda]
                                             <i>Strychnos nicaraguensis</i>
                                             <i>Strychnos nigricans</i>
                                             <i>Strychnos nigritana</i>
                                                   [Strychnos ciliicalyx]
                                                   [Strychnos fleuryana]
                                                   [Strychnos imbricata]
                                                   [Strychnos martreti]
                                                   [Strychnos togoensis]
                                                   [Strychnos vogelii]
                                             <i>Strychnos nux-vomica</i>
                                             <i>Strychnos odorata</i>
                                             <i>Strychnos ovata</i>
                                                   [Strychnos confertiflora]
                                             <i>Strychnos panamensis</i>
                                                   [Strychnos longissima]
                                                   [Strychnos panamensis var. hirtiflora]
                                                   [Strychnos tepicensis]
                                             <i>Strychnos panganensis</i>
                                                   [Strychnos bicirrifera]
                                                   [Strychnos corymbifera]
                                                   [Strychnos guerkeana]
                                             <i>Strychnos panurensis</i>
                                             <i>Strychnos parviflora</i>
                                             <i>Strychnos parvifolia</i>
                                             <i>Strychnos peckii</i>
                                             <i>Strychnos penninervis</i>
                                             <i>Strychnos phaeotricha</i>
                                                   [Strychnos scaberrima]
                                                   [Strychnos thyrsiflora]
                                             <i>Strychnos poeppigii</i>
                                             <i>Strychnos potatorum</i>
                                                   [Strychnos heterodoxa]
                                                   [Strychnos stuhlmannii]
                                             <i>Strychnos pseudoquina</i>
                                             <i>Strychnos pungens</i>
                                                   [Strychnos brazzavillensis]
                                                   [Strychnos henriquesiana]
                                                   [Strychnos occidentalis]
                                                   [Strychnos sapini]
                                             <i>Strychnos retinervis</i>
                                             <i>Strychnos rondeletioides</i>
                                                   [Strychnos smithiana]
                                             <i>Strychnos rubiginosa</i>
                                             <i>Strychnos samba</i>
                                             <i>Strychnos scheffleri</i>
                                                   [Strychnos dubia]
                                                   [Strychnos excellens]
                                                   [Strychnos scheffleri var. expansa]
                                                   [Strychnos subaquatica]
                                                   [Strychnos sumbensis]
                                             <i>Strychnos schultesiana</i>
                                             <i>Strychnos soubrensis</i>
                                                   [Strychnos jollyana]
                                             <i>Strychnos spinosa</i>
                                                   [Strychnos buettneri]
                                                   [Strychnos cardiophylla]
                                                   [Strychnos carvalhoi]
                                                   [Strychnos courteti]
                                                   [Strychnos cuneifolia]
                                                   [Strychnos djalonis]
                                                   [Strychnos dulcis]
                                                   [Strychnos emarginata]
                                                   [Strychnos euryphylla]
                                                   [Strychnos gilletii]
                                                   [Strychnos gracillima var. paucispinosa]
                                                   [Strychnos gracillima]
                                                   [Strychnos harmsii]
                                                   [Strychnos laxa]
                                                   [Strychnos leiosepala]
                                                   [Strychnos lokua]
                                                   [Strychnos megalocarpa]
                                                   [Strychnos miniungansamba]
                                                   [Strychnos mueghe]
                                                   [Strychnos omphalocarpa]
                                                   [Strychnos pluvialis]
                                                   [Strychnos radiosperma]
                                                   [Strychnos rhombifolia]
                                                   [Strychnos sansibariensis]
                                                   [Strychnos schweinfurthii]
                                                   [Strychnos spinosa subsp. volkensii]
                                                   [Strychnos spinosa var. lokua]
                                                   [Strychnos spinosa var. pubescens]
                                                   [Strychnos tonga]
                                                   [Strychnos unguacha var. retusa]
                                                   [Strychnos volkensii]
                                             <i>Strychnos splendens</i>
                                                   [Strychnos acutissima]
                                                   [Strychnos chrysocarpa]
                                             <i>Strychnos staudtii</i>
                                             <i>Strychnos tabascana</i>
                                             <i>Strychnos talbotiae</i>
                                                   [Strychnos reygartii]
                                             <i>Strychnos tarapotensis</i>
                                             <i>Strychnos tchibangensis</i>
                                             <i>Strychnos ternata</i>
                                             <i>Strychnos thorelii</i>
                                             <i>Strychnos toxifera</i>
                                             <i>Strychnos tricalysioides</i>
                                                   [Strychnos isabellina]
                                                   [Strychnos macrorhiza]
                                             <i>Strychnos trinervis</i>
                                                   [Strychnos triplinervia]
                                             <i>Strychnos umbellata</i>
                                                   [Cissus umbellata]
                                             <i>Strychnos urceolata</i>
                                             <i>Strychnos usambarensis</i>
                                                   [Strychnos cerasifera]
                                                   [Strychnos cooperi]
                                                   [Strychnos distichophylla]
                                                   [Strychnos fernandiae]
                                                   [Strychnos micans]
                                             <i>Strychnos vanprukii</i>
                                             <i>Strychnos variabilis</i>
                                             <i>Strychnos wallichiana</i>
                                             <i>Strychnos xantha</i>
                                                   [Strychnos luteocostata]
                                             <i>Strychnos xylophylla</i>
                                             <i>Strychnos zenkeri</i>
                                     <i>Unguacha</i>
                                     <i>Usteria</i>
                                             <i>Usteria guineensis</i>
                                                   [Monodynamis iserti]
                                                   [Usteria volubilis]