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    Tracheophyta
           [Tracheobionta]
      Pteridophyta
            Polypodiopsida
                    Polypodiales
                            <b>Pteridaceae</b>
                                     <i>Acropteris</i>
                                     <i>Acrostichum</i>
                                             <i>Acrostichum alienum</i>
                                             <i>Acrostichum apodum</i>
                                             <i>Acrostichum aureum</i>
                                                   [Acrostichum guineense]
                                                   [Chrysodium vulgare]
                                                   [Polystichum dissimulans]
                                                   [Polystichum emarginatum]
                                             <i>Acrostichum caudatum</i>
                                             <i>Acrostichum conforme</i>
                                             <i>Acrostichum crispatulum</i>
                                             <i>Acrostichum danaeifolium</i>
                                             <i>Acrostichum excelsum</i>
                                             <i>Acrostichum gorgoneum</i>
                                             <i>Acrostichum hybridum</i>
                                             <i>Acrostichum lanceolatum</i>
                                             <i>Acrostichum latifolium</i>
                                             <i>Acrostichum lomarioides</i>
                                             <i>Acrostichum marginatum</i>
                                             <i>Acrostichum nicotianifolium</i>
                                             <i>Acrostichum pallidum</i>
                                             <i>Acrostichum peltatum</i>
                                             <i>Acrostichum pilosum</i>
                                             <i>Acrostichum polyphyllum</i>
                                             <i>Acrostichum proliferum</i>
                                             <i>Acrostichum punctulatum</i>
                                             <i>Acrostichum scandens</i>
                                             <i>Acrostichum scolopendrifolium</i>
                                             <i>Acrostichum sorbifolium</i>
                                             <i>Acrostichum speciosum</i>
                                             <i>Acrostichum squamosum</i>
                                             <i>Acrostichum tenuifolium</i>
                                             <i>Acrostichum venustum</i>
                                             <i>Acrostichum vestitum</i>
                                             <i>Acrostichum virens</i>
                                             <i>Acrostichum viscosum</i>
                                     <i>Actiniopteris</i>
                                             <i>Actiniopteris australis</i>
                                                   [Acrostichum australe]
                                             <i>Actiniopteris dimorpha</i>
                                               <i>Actiniopteris dimorpha subsp. dimorpha</i>
                                               <i>Actiniopteris dimorpha subsp. diversiformis</i>
                                             <i>Actiniopteris pauciloba</i>
                                             <i>Actiniopteris radiata</i>
                                                   [Acropteris radiata]
                                                   [Acrostichum radiatum]
                                                   [Actiniopteris australis var. radiata]
                                                   [Asplenium polydactylon]
                                                   [Asplenium radiatum]
                                                   [Pteris radiata]
                                             <i>Actiniopteris semiflabellata</i>
                                     <i>Adianthum</i>
                              Adiantoideae
                                     <i>Adiantopsis</i>
                                             <i>Adiantopsis asplenioides</i>
                                             <i>Adiantopsis aurea</i>
                                             <i>Adiantopsis chlorophylla</i>
                                                   [Cheilanthes chlorophylla]
                                                   [Cheilanthes spectabilis]
                                             <i>Adiantopsis dactylifera</i>
                                             <i>Adiantopsis dichotoma</i>
                                                   [Cheilanthes dichotoma]
                                             <i>Adiantopsis flexuosa</i>
                                             <i>Adiantopsis hickeyi</i>
                                             <i>Adiantopsis monticola</i>
                                             <i>Adiantopsis orbignyana</i>
                                             <i>Adiantopsis paupercula</i>
                                             <i>Adiantopsis pedata</i>
                                             <i>Adiantopsis pentagona</i>
                                             <i>Adiantopsis perfasciculata</i>
                                             <i>Adiantopsis radiata</i>
                                                   [Hemionitis radiata]
                                             <i>Adiantopsis reesii</i>
                                             <i>Adiantopsis regularis</i>
                                             <i>Adiantopsis rupicola</i>
                                             <i>Adiantopsis seemannii</i>
                                                   [Cheilanthes seemannii]
                                             <i>Adiantopsis senae</i>
                                             <i>Adiantopsis ternata</i>
                                             <i>Adiantopsis timida</i>
                                             <i>Adiantopsis tweedieana</i>
                                     <i>Adiantum</i>
                                             <i>Adiantum abscissum</i>
                                             <i>Adiantum adiantoides</i>
                                             <i>Adiantum aethiopicum</i>
                                             <i>Adiantum affine</i>
                                             <i>Adiantum alan-smithii</i>
                                             <i>Adiantum alarconianum</i>
                                             <i>Adiantum alatum</i>
                                             <i>Adiantum aleuticum</i>
                                                   [Adiantum aleuticum subsp. aleuticum]
                                                   [Adiantum aleuticum subsp. subpumilum]
                                                   [Adiantum pedatum subsp. aleuticum]
                                                   [Adiantum pedatum subsp. calderi]
                                                   [Adiantum pedatum subsp. subpumilum]
                                                   [Adiantum pedatum var. aleuticum]
                                                   [Adiantum pedatum var. subpumilum]
                                             <i>Adiantum amblyopteridium</i>
                                             <i>Adiantum amplum</i>
                                             <i>Adiantum anceps</i>
                                             <i>Adiantum andicola</i>
                                                   [Adiantum amabile]
                                                   [Adiantum cooperi]
                                                   [Adiantum glaucophyllum]
                                             <i>Adiantum aneitense</i>
                                             <i>Adiantum argutum</i>
                                             <i>Adiantum assimile</i>
                                             <i>Adiantum balfourii</i>
                                             <i>Adiantum bellum</i>
                                                   [Adiantum bellum var. walsingense]
                                             <i>Adiantum bennettii</i>
                                             <i>Adiantum brasiliense</i>
                                             <i>Adiantum braunii</i>
                                                   [Adiantum convolutum]
                                             <i>Adiantum cajennense</i>
                                                   [Adiantum cayennense]
                                             <i>Adiantum capillus-junonis</i>
                                             <i>Adiantum capillus-veneris</i>
                                                   [Adiantum africanum]
                                                   [Adiantum capillus-veneris f. cristatum]
                                                   [Adiantum capillus-veneris var. kenyense]
                                                   [Adiantum capillus-veneris var. modestum]
                                                   [Adiantum capillus-veneris var. pinnata]
                                                   [Adiantum capillus-veneris var. protrusum]
                                                   [Adiantum capillus]
                                                   [Adiantum coriandrifolium]
                                                   [Adiantum fontanum]
                                                   [Adiantum fumarioides]
                                                   [Adiantum marginatum]
                                                   [Adiantum modestum]
                                                   [Adiantum paradiseae]
                                                   [Adiantum pseudocapillus]
                                                   [Adiantum schaffneri]
                                                   [Adiantum trifidum]
                                             <i>Adiantum caryotideum</i>
                                             <i>Adiantum caudatum</i>
                                                   [Adiantum flagelliferum]
                                             <i>Adiantum chilense</i>
                                               <i>Adiantum chilense var. chilense</i>
                                               <i>Adiantum chilense var. hirsutum</i>
                                                     [Adiantum thalictroides var. hirsutum]
                                               <i>Adiantum chilense var. sulphureum</i>
                                                     [Adiantum glanduliferum]
                                                     [Adiantum poiretii var. sulphureum]
                                                     [Adiantum sulphureum]
                                             <i>Adiantum ciliatum</i>
                                             <i>Adiantum cinnamomeum</i>
                                             <i>Adiantum comorense</i>
                                                   [Adiantum rhizophorum var. comorense]
                                             <i>Adiantum concinnum</i>
                                             <i>Adiantum confine</i>
                                             <i>Adiantum cordatum</i>
                                             <i>Adiantum crenatum</i>
                                             <i>Adiantum cristatum</i>
                                             <i>Adiantum cultratum</i>
                                             <i>Adiantum cuneatum</i>
                                             <i>Adiantum cunninghamii</i>
                                             <i>Adiantum cupreum</i>
                                             <i>Adiantum curvatum</i>
                                             <i>Adiantum davidii</i>
                                                   [Adiantum aristatum]
                                             <i>Adiantum decoratum</i>
                                             <i>Adiantum deflectens</i>
                                             <i>Adiantum delicatulum</i>
                                             <i>Adiantum deltoideum</i>
                                             <i>Adiantum denticulatum</i>
                                             <i>Adiantum diaphanum</i>
                                                   [Adiantum setulosum]
                                             <i>Adiantum digitatum</i>
                                             <i>Adiantum diogoanum</i>
                                             <i>Adiantum dolosum</i>
                                             <i>Adiantum edgeworthii</i>
                                             <i>Adiantum emarginatum</i>
                                             <i>Adiantum erythrochlamys</i>
                                             <i>Adiantum excisum</i>
                                             <i>Adiantum feei</i>
                                             <i>Adiantum filiforme</i>
                                             <i>Adiantum flabellulatum</i>
                                                   [Adiantum amoenum]
                                             <i>Adiantum formosanum</i>
                                             <i>Adiantum formosum</i>
                                             <i>Adiantum fournieri</i>
                                             <i>Adiantum fragile</i>
                                               <i>Adiantum fragile var. fragile</i>
                                               <i>Adiantum fragile var. rigidulum</i>
                                             <i>Adiantum fructuosum</i>
                                             <i>Adiantum fuliginosum</i>
                                             <i>Adiantum fulvum</i>
                                             <i>Adiantum galeottianum</i>
                                             <i>Adiantum galleottianum</i>
                                             <i>Adiantum gertrudis</i>
                                             <i>Adiantum giganteum</i>
                                             <i>Adiantum glabrum</i>
                                             <i>Adiantum glaucescens</i>
                                             <i>Adiantum gracile</i>
                                             <i>Adiantum gravesii</i>
                                             <i>Adiantum henslovianum</i>
                                                   [Adiantum sessilifolium]
                                             <i>Adiantum hirsutum</i>
                                             <i>Adiantum hispidulum</i>
                                                   [Adiantum hispidulum f. strictum]
                                                   [Adiantum lindsaea]
                                                   [Adiantum lobulatum]
                                               <i>Adiantum hispidulum var. hypoglaucum</i>
                                             <i>Adiantum hollandiae</i>
                                             <i>Adiantum hornei</i>
                                             <i>Adiantum hosei</i>
                                             <i>Adiantum humile</i>
                                                   [Adiantum killipii]
                                             <i>Adiantum incisum</i>
                                                   [Adiantum capillus-gorgonis]
                                                   [Adiantum caudatum var. hirsutum]
                                                   [Adiantum radicans]
                                               <i>Adiantum incisum subsp. incisum</i>
                                               <i>Adiantum incisum subsp. indicum</i>
                                                     [Adiantum indicum]
                                             <i>Adiantum induratum</i>
                                             <i>Adiantum intermedium</i>
                                             <i>Adiantum jordanii</i>
                                                   [Adiantum jordani]
                                             <i>Adiantum kendalii</i>
                                             <i>Adiantum kingii</i>
                                             <i>Adiantum lanceolatum</i>
                                             <i>Adiantum latifolium</i>
                                                   [Adiantum fovearum]
                                                   [Adiantum glaziovii]
                                                   [Adiantum triangulatum]
                                             <i>Adiantum leprieurii</i>
                                             <i>Adiantum lobatum</i>
                                             <i>Adiantum lorentzii</i>
                                             <i>Adiantum lucidum</i>
                                             <i>Adiantum lunulatum</i>
                                                   [Adiantum lunatum]
                                                   [Adiantum lunulatum var. fissum]
                                                   [Adiantum lunulatum var. lobatum]
                                                   [Adiantum lunulatum var. pteropus]
                                                   [Adiantum pteropus]
                                                   [Pteris lunulata]
                                             <i>Adiantum macrocladum</i>
                                             <i>Adiantum macrophyllum</i>
                                             <i>Adiantum malesianum</i>
                                             <i>Adiantum mariesii</i>
                                             <i>Adiantum mariposatum</i>
                                             <i>Adiantum mathewsianum</i>
                                             <i>Adiantum mcvaughii</i>
                                             <i>Adiantum meishanianum</i>
                                             <i>Adiantum melanoleucum</i>
                                               <i>Adiantum melanoleucum var. cubense</i>
                                                     [Adiantum cubense]
                                             <i>Adiantum mendoncae</i>
                                             <i>Adiantum microphyllum</i>
                                             <i>Adiantum mindanaense</i>
                                                   [Adiantum aculeolatum]
                                             <i>Adiantum mindanaoense</i>
                                             <i>Adiantum monochlamys</i>
                                             <i>Adiantum monosorum</i>
                                                   [Adiantum scabripes]
                                             <i>Adiantum mynsseniae</i>
                                             <i>Adiantum myriosorum</i>
                                             <i>Adiantum neoguineense</i>
                                             <i>Adiantum novae-caledoniae</i>
                                             <i>Adiantum nudum</i>
                                             <i>Adiantum oaxacanum</i>
                                             <i>Adiantum obliquum</i>
                                             <i>Adiantum obtusum</i>
                                             <i>Adiantum olivaceum</i>
                                             <i>Adiantum orbignyanum</i>
                                             <i>Adiantum ornithopodum</i>
                                             <i>Adiantum paraense</i>
                                                   [Adiantum amazonicum]
                                             <i>Adiantum parishii</i>
                                             <i>Adiantum patens</i>
                                               <i>Adiantum patens subsp. oatesii</i>
                                                     [Adiantum oatesii]
                                                     [Adiantum patens var. oatesii]
                                               <i>Adiantum patens var. patens</i>
                                             <i>Adiantum pectinatum</i>
                                             <i>Adiantum pedatum</i>
                                                   [Adiantum pedatum subsp. pedatum]
                                                   [Adiantum pedatum var. pedatum]
                                               <i>Adiantum pedatum pedatum</i>
                                             <i>Adiantum pentadactylon</i>
                                             <i>Adiantum peruvianum</i>
                                             <i>Adiantum petiolatum</i>
                                                   [Adiantum kaulfussii]
                                             <i>Adiantum phanerophlebium</i>
                                             <i>Adiantum philippense</i>
                                               <i>Adiantum philippense subsp. philippense</i>
                                                     [Adiantum arcuatum]
                                             <i>Adiantum phyllitidis</i>
                                             <i>Adiantum platyphyllum</i>
                                             <i>Adiantum poeppigianum</i>
                                             <i>Adiantum poiretii</i>
                                                   [Adiantum cycloides]
                                                   [Adiantum pellucidum]
                                               <i>Adiantum poiretii var. poiretii</i>
                                             <i>Adiantum polyphyllum</i>
                                             <i>Adiantum princeps</i>
                                             <i>Adiantum pseudotinctum</i>
                                             <i>Adiantum pubescens</i>
                                             <i>Adiantum pulcherrimum</i>
                                             <i>Adiantum pulverulentum</i>
                                               <i>Adiantum pulverulentum var. caudatum</i>
                                             <i>Adiantum pumilum</i>
                                             <i>Adiantum pyramidale</i>
                                                   [Adiantum striatum]
                                             <i>Adiantum raddianum</i>
                                                   [Adiantum boliviense]
                                                   [Adiantum decorum]
                                                   [Adiantum mexicanum]
                                                   [Adiantum tinctum]
                                                   [Adiantum wagneri]
                                             <i>Adiantum reniforme</i>
                                                   [Adiantum reniforme var. hydrocotyloides]
                                               <i>Adiantum reniforme var. asarifolium</i>
                                                     [Adiantum asarifolium]
                                             <i>Adiantum rhizophorum</i>
                                                   [Adiantum caudatum var. rhizophorum]
                                             <i>Adiantum rhizophytum</i>
                                                   [Adiantum rhizophyllum]
                                             <i>Adiantum rhomboideum</i>
                                             <i>Adiantum rigidulum</i>
                                             <i>Adiantum rimicola</i>
                                             <i>Adiantum roborowskii</i>
                                             <i>Adiantum ruizianum</i>
                                             <i>Adiantum scabrum</i>
                                             <i>Adiantum scalare</i>
                                             <i>Adiantum schweinfurthii</i>
                                                   [Adiantum chevalieri]
                                             <i>Adiantum seemannii</i>
                                             <i>Adiantum sericeum</i>
                                             <i>Adiantum serratodentatum</i>
                                             <i>Adiantum shastense</i>
                                             <i>Adiantum shepherdi</i>
                                             <i>Adiantum shepherdii</i>
                                             <i>Adiantum silvaticum</i>
                                                   [Adiantum cunninghamii var. intermedium]
                                             <i>Adiantum sinuosum</i>
                                             <i>Adiantum soboliferum</i>
                                                   [Adiantum balansae]
                                                   [Adiantum mettenii]
                                             <i>Adiantum stenochlamys</i>
                                                   [Adiantum opacum]
                                             <i>Adiantum stolzii</i>
                                             <i>Adiantum subcordatum</i>
                                                   [Adiantum conicum]
                                                   [Adiantum dilatatum]
                                             <i>Adiantum subvolubile</i>
                                             <i>Adiantum taiwanianum</i>
                                                   [Adiantum roborowskii var. taiwanianum]
                                             <i>Adiantum tenerum</i>
                                               <i>Adiantum tenerum var. farleyense</i>
                                                     [Adiantum farleyense]
                                             <i>Adiantum terminatum</i>
                                             <i>Adiantum tetraphyllum</i>
                                                   [Adiantum laxum]
                                             <i>Adiantum thalictroides</i>
                                             <i>Adiantum tibeticum</i>
                                             <i>Adiantum tomentosum</i>
                                             <i>Adiantum tracyi</i>
                                             <i>Adiantum trapeziforme</i>
                                             <i>Adiantum trapezoides</i>
                                             <i>Adiantum trichochlaenum</i>
                                             <i>Adiantum tricholepis</i>
                                             <i>Adiantum tuomistoanum</i>
                                             <i>Adiantum urophyllum</i>
                                             <i>Adiantum venustum</i>
                                                   [Adiantum bonatianum]
                                                   [Adiantum fimbriatum]
                                             <i>Adiantum villosissimum</i>
                                             <i>Adiantum villosum</i>
                                             <i>Adiantum viridescens</i>
                                             <i>Adiantum viridimontanum</i>
                                                   [Adiantum pedatum subsp. viridimontanum]
                                             <i>Adiantum vivesii</i>
                                             <i>Adiantum vogelii</i>
                                                   [Adiantum tetraphyllum var. obtusum]
                                                   [Adiantum tetraphyllum var. tenerum]
                                                   [Adiantum tetraphyllum var. vogelii]
                                             <i>Adiantum wattii</i>
                                                   [Adiantum edentulum]
                                             <i>Adiantum wilesianum</i>
                                             <i>Adiantum williamsii</i>
                                             <i>Adiantum wilsonii</i>
                                                   [Adiantum wilsonii var. semicordatum]
                                             <i>Adiantum x tracyi</i>
                                             <i>Adiantum zollingeri</i>
                                     <i>Afropteris</i>
                                     <i>Aleuritopteris</i>
                                             <i>Aleuritopteris agetae</i>
                                                   [Cheilanthes agetae]
                                             <i>Aleuritopteris albofusca</i>
                                                   [Cheilanthes albofusca]
                                             <i>Aleuritopteris albomarginata</i>
                                                   [Cheilanthes albomarginata]
                                                   [Cheilanthes dalhousiae]
                                             <i>Aleuritopteris anceps</i>
                                                   [Cheilanthes anceps]
                                             <i>Aleuritopteris argentea</i>
                                                   [Cheilanthes argentea]
                                               <i>Aleuritopteris argentea var. obscura</i>
                                             <i>Aleuritopteris aurea</i>
                                             <i>Aleuritopteris belensis</i>
                                                   [Cheilanthes belensis]
                                             <i>Aleuritopteris bicolor</i>
                                                   [Pteris bicolor]
                                             <i>Aleuritopteris bullosa</i>
                                             <i>Aleuritopteris chrysophylla</i>
                                             <i>Aleuritopteris dealbata</i>
                                                   [Cheilanthes dealbata]
                                             <i>Aleuritopteris dubia</i>
                                                   [Cheilanthes dubia]
                                             <i>Aleuritopteris duclouxii</i>
                                                   [Cheilanthes duclouxii]
                                             <i>Aleuritopteris farinosa</i>
                                                   [Aleuritopteris chihuahuensis]
                                                   [Aleuritopteris mexicana]
                                                   [Cheilanthes farinosa]
                                                   [Hemionitis farinosa]
                                                   [Pteris farinosa]
                                             <i>Aleuritopteris formosana</i>
                                                   [Cheilanthes formosana]
                                             <i>Aleuritopteris grisea</i>
                                                   [Cheilanthes grisea]
                                             <i>Aleuritopteris krameri</i>
                                                   [Cheilanthes krameri]
                                             <i>Aleuritopteris leptolepis</i>
                                             <i>Aleuritopteris niphobola</i>
                                                   [Cheilanthes niphobola]
                                             <i>Aleuritopteris papuana</i>
                                                   [Cheilanthes papuana]
                                             <i>Aleuritopteris rufa</i>
                                                   [Cheilanthes rufa]
                                             <i>Aleuritopteris scioana</i>
                                             <i>Aleuritopteris shensiensis</i>
                                             <i>Aleuritopteris subargentea</i>
                                             <i>Aleuritopteris subdimorpha</i>
                                                   [Cheilanthes subdimorpha]
                                             <i>Aleuritopteris subrufa</i>
                                             <i>Aleuritopteris tamburii</i>
                                             <i>Aleuritopteris veitchii</i>
                                                   [Cheilanthes veitchii]
                                             <i>Aleuritopteris welwitschii</i>
                                                   [Cheilanthes welwitschii]
                                     <i>Allosorus</i>
                                             <i>Allosorus acrosticus</i>
                                             <i>Allosorus ciliatus</i>
                                             <i>Allosorus coriaceus</i>
                                                   [Cheilanthes coriacea]
                                             <i>Allosorus crispus</i>
                                             <i>Allosorus fragilis</i>
                                             <i>Allosorus guanchicus</i>
                                             <i>Allosorus hispanicus</i>
                                             <i>Allosorus persicus</i>
                                             <i>Allosorus pteridioides</i>
                                             <i>Allosorus rotundifolius</i>
                                             <i>Allosorus tinaei</i>
                                     <i>Ananthacorus</i>
                                             <i>Ananthacorus angustifolius</i>
                                                   [Taenitis angustifolia]
                                     <i>Anetium</i>
                                             <i>Anetium citrifolium</i>
                                                   [Acrostichum citrifolium]
                                     <i>Anogramma</i>
                                             <i>Anogramma caespitosa</i>
                                             <i>Anogramma chaerophylla</i>
                                             <i>Anogramma guatemalensis</i>
                                             <i>Anogramma leptophylla</i>
                                                   [Grammitis leptophylla]
                                                   [Gymnogramma leptophylla]
                                             <i>Anogramma lorentzii</i>
                                             <i>Anogramma novogaliciana</i>
                                             <i>Anogramma osteniana</i>
                                     <i>Anopteris</i>
                                             <i>Anopteris hexagona</i>
                                               <i>Anopteris hexagona subsp. hexagona</i>
                                               <i>Anopteris hexagona subsp. intermedia</i>
                                     <i>Anthrophium</i>
                                     <i>Antrophyopsis</i>
                                             <i>Antrophyopsis gigantea</i>
                                                   [Antrophyum giganteum]
                                             <i>Antrophyopsis manniana</i>
                                                   [Antrophyum mannianum]
                                                   [Antrophyum meniscium]
                                                   [Scoliosorus mannianum]
                                     <i>Antrophyum</i>
                                             <i>Antrophyum annamense</i>
                                             <i>Antrophyum annetii</i>
                                                   [Antrophyum subsessile var. annetii]
                                             <i>Antrophyum boryanum</i>
                                             <i>Antrophyum brookei</i>
                                             <i>Antrophyum cajenense</i>
                                             <i>Antrophyum callifolium</i>
                                                   [Antrophyum alatum]
                                                   [Antrophyum marginale]
                                                   [Antrophyum nanum]
                                             <i>Antrophyum castaneum</i>
                                             <i>Antrophyum chlorosporum</i>
                                             <i>Antrophyum coriaceum</i>
                                             <i>Antrophyum ensiforme</i>
                                             <i>Antrophyum formosanum</i>
                                             <i>Antrophyum guayanense</i>
                                             <i>Antrophyum henryi</i>
                                             <i>Antrophyum intramarginale</i>
                                             <i>Antrophyum lanceolatum</i>
                                             <i>Antrophyum latifolium</i>
                                             <i>Antrophyum ledermannii</i>
                                             <i>Antrophyum lineatum</i>
                                             <i>Antrophyum malgassicum</i>
                                             <i>Antrophyum megistophyllum</i>
                                             <i>Antrophyum novae-caledoniae</i>
                                             <i>Antrophyum obovatum</i>
                                             <i>Antrophyum obtusum</i>
                                             <i>Antrophyum parvulum</i>
                                                   [Antrophyum immersum]
                                             <i>Antrophyum plantagineum</i>
                                                   [Antrophyum grevillei]
                                                   [Antrophyum lessonii]
                                                   [Hemionitis plantaginea]
                                             <i>Antrophyum reticulatum</i>
                                             <i>Antrophyum semicostatum</i>
                                                   [Antrophyum latipes]
                                             <i>Antrophyum sessilifolium</i>
                                                   [Antrophyum cumingii]
                                             <i>Antrophyum sp.</i>
                                             <i>Antrophyum stenophyllum</i>
                                             <i>Antrophyum strictum</i>
                                             <i>Antrophyum subfalcatum</i>
                                             <i>Antrophyum urbanii</i>
                                             <i>Antrophyum vittarioides</i>
                                             <i>Antrophyum williamsii</i>
                                     <i>Argyrochosma</i>
                                             <i>Argyrochosma dealbata</i>
                                             <i>Argyrochosma delicatula</i>
                                             <i>Argyrochosma fendleri</i>
                                                   [Cheilanthes cancellata]
                                                   [Notholaena fendleri]
                                                   [Pellaea fendleri]
                                             <i>Argyrochosma formosa</i>
                                                   [Hemionitis formosa]
                                                   [Notholaena formosa]
                                                   [Pellaea formosa]
                                                   [Pellaea pulchella]
                                             <i>Argyrochosma incana</i>
                                                   [Cheilanthes incana]
                                                   [Hemionitis incana]
                                                   [Notholaena incana]
                                             <i>Argyrochosma jonesii</i>
                                                   [Cheilanthes jonesii]
                                                   [Notholaena jonesii]
                                                   [Pellaea jonesii]
                                             <i>Argyrochosma limitanea</i>
                                               <i>Argyrochosma limitanea limitanea</i>
                                               <i>Argyrochosma limitanea subsp. limitanea</i>
                                                     [Cheilanthes limitanea]
                                                     [Notholaena limitanea var. limitanea]
                                                     [Notholaena limitanea]
                                                     [Pellaea limitanea]
                                               <i>Argyrochosma limitanea subsp. mexicana</i>
                                                     [Cheilanthes limitanea var. mexicana]
                                                     [Notholaena limitanea subsp. mexicana]
                                                     [Notholaena limitanea var. mexicana]
                                                     [Pellaea limitanea var. mexicana]
                                             <i>Argyrochosma lumholtzii</i>
                                                   [Notholaena lumholtzii]
                                             <i>Argyrochosma microphylla</i>
                                                   [Cheilanthes parvifolia]
                                                   [Hemionitis microphylla]
                                                   [Hemionitis vooshvazool]
                                                   [Notholaena parvifolia]
                                                   [Pellaea microphylla]
                                             <i>Argyrochosma nivea</i>
                                               <i>Argyrochosma nivea var. flava</i>
                                               <i>Argyrochosma nivea var. nivea</i>
                                               <i>Argyrochosma nivea var. tenera</i>
                                             <i>Argyrochosma pallens</i>
                                             <i>Argyrochosma palmeri</i>
                                                   [Notholaena palmeri]
                                             <i>Argyrochosma peninsularis</i>
                                                   [Notholaena peninsularis]
                                             <i>Argyrochosma pilifera</i>
                                                   [Notholaena pilifera]
                                             <i>Argyrochosma stuebeliana</i>
                                             <i>Argyrochosma tenera</i>
                                                   [Notholaena nivea var. tenera]
                                                   [Notholaena tenera]
                                                   [Pellaea tenera]
                                     <i>Aspidotis</i>
                                             <i>Aspidotis californica</i>
                                                   [Cheilanthes amoena]
                                                   [Cheilanthes californica]
                                                   [Hemionitis californica]
                                                   [Hypolepis californica]
                                             <i>Aspidotis carlotta-halliae</i>
                                                   [Cheilanthes carlotta-halliae]
                                             <i>Aspidotis densa</i>
                                             <i>Aspidotis meifolia</i>
                                                   [Cheilanthes meifolia]
                                             <i>Aspidotis schimperi</i>
                                                   [Cheilanthes schimperi]
                                                   [Hypolepis schimperi]
                                     <i>Astrolepis</i>
                                             <i>Astrolepis beitelii</i>
                                             <i>Astrolepis cochisensis</i>
                                               <i>Astrolepis cochisensis subsp. arizonica</i>
                                               <i>Astrolepis cochisensis subsp. chihuahuaensis</i>
                                               <i>Astrolepis cochisensis subsp. chihuahuensis</i>
                                               <i>Astrolepis cochisensis subsp. cochisensis</i>
                                                     [Cheilanthes cochisensis]
                                                     [Cheilanthes sinuata var. cochisensis]
                                                     [Notholaena cochisensis]
                                                     [Notholaena sinuata var. cochisensis]
                                             <i>Astrolepis crassifolia</i>
                                                   [Hemionitis crassifolia]
                                             <i>Astrolepis deltoidea</i>
                                             <i>Astrolepis integerrima</i>
                                                   [Cheilanthes integerrima]
                                                   [Hemionitis integerrima]
                                                   [Notholaena integerrima]
                                                   [Notholaena sinuata var. integerrima]
                                             <i>Astrolepis laevis</i>
                                                   [Cheilanthes beitelii]
                                                   [Hemionitis beitelii]
                                                   [Notholaena laevis]
                                             <i>Astrolepis obscura</i>
                                             <i>Astrolepis sinuata</i>
                                                   [Hemionitis sinuata]
                                                   [Notholaena sinuata var. pinnatifida]
                                                   [Notholaena sinuata var. robusta]
                                               <i>Astrolepis sinuata sinuata</i>
                                               <i>Astrolepis sinuata subsp. mexicana</i>
                                               <i>Astrolepis sinuata subsp. sinuata</i>
                                                     [Cheilanthes sinuata]
                                                     [Notholaena sinuata var. crenata]
                                                     [Notholaena sinuata var. sinuata]
                                                     [Notholaena sinuata]
                                             <i>Astrolepis windhamii</i>
                                     <i>Austrogramme</i>
                                             <i>Austrogramme asplenioides</i>
                                             <i>Austrogramme boerlageana</i>
                                             <i>Austrogramme decipiens</i>
                                                   [Aspleniopsis decipiens]
                                             <i>Austrogramme luzonica</i>
                                     <i>Baja</i>
                                             <i>Baja brandegeei</i>
                                     <i>Bommeria</i>
                                             <i>Bommeria ehrenbergiana</i>
                                                   [Gymnogramma ehrenbergiana]
                                                   [Gymnogramma podophylla]
                                                   [Hemionitis ehrenbergiana]
                                             <i>Bommeria elegans</i>
                                             <i>Bommeria hispida</i>
                                                   [Bommeria schaffneri]
                                                   [Gymnogramma ehrenbergiana var. muralis]
                                                   [Gymnogramma hispida]
                                                   [Gymnopteris hispida]
                                                   [Hemionitis hispida]
                                             <i>Bommeria pedata</i>
                                                   [Gymnopteris pedata]
                                                   [Hemionitis pedata]
                                             <i>Bommeria subpaleacea</i>
                                                   [Bommeria knoblochii]
                                                   [Hemionitis subpaleacea]
                                     <i>Calciphilopteris</i>
                                             <i>Calciphilopteris ludens</i>
                                             <i>Calciphilopteris papuana</i>
                                                   [Doryopteris papuana]
                                     <i>Cassebeera</i>
                                     <i>Ceratopteris</i>
                                           [Parkeria]
                                             <i>Ceratopteris cornuta</i>
                                             <i>Ceratopteris deltoidea</i>
                                             <i>Ceratopteris gaudichaudii</i>
                                             <i>Ceratopteris pteridoides</i>
                                                   [Parkeria pteridoides]
                                             <i>Ceratopteris richardii</i>
                                             <i>Ceratopteris siliquosa</i>
                                             <i>Ceratopteris thalictroides</i>
                                                   [Acrostichum thalictroides]
                                               <i>Ceratopteris thalictroides subsp. gaudichaudii</i>
                                               <i>Ceratopteris thalictroides subsp. thalictroides</i>
                                     <i>Ceropteris</i>
                                             <i>Ceropteris calomelanos</i>
                                     <i>Cheilanthes</i>
                                             <i>Cheilanthes adiantoides</i>
                                             <i>Cheilanthes angustifrondosa</i>
                                             <i>Cheilanthes arequipensis</i>
                                             <i>Cheilanthes austrotenuifolia</i>
                                             <i>Cheilanthes bergiana</i>
                                                   [Hypolepis bergiana]
                                             <i>Cheilanthes bolborrhiza</i>
                                             <i>Cheilanthes botswanae</i>
                                             <i>Cheilanthes brandegeei</i>
                                             <i>Cheilanthes brownii</i>
                                             <i>Cheilanthes buchananii</i>
                                                   [Cheilanthes inaequalis var. buchananii]
                                                   [Notholaena buchananii]
                                             <i>Cheilanthes buchtienii</i>
                                                   [Notholaena buchtienii]
                                             <i>Cheilanthes bullosa</i>
                                             <i>Cheilanthes capensis</i>
                                                   [Adiantopsis capensis]
                                             <i>Cheilanthes caudata</i>
                                             <i>Cheilanthes deboeri</i>
                                             <i>Cheilanthes deltoidea</i>
                                               <i>Cheilanthes deltoidea subsp. deltoidea</i>
                                                     [Pellaea deltoidea]
                                             <i>Cheilanthes depauperata</i>
                                             <i>Cheilanthes dinteri</i>
                                             <i>Cheilanthes distans</i>
                                                   [Notholaena distans]
                                             <i>Cheilanthes eckloniana</i>
                                                   [Notholaena eckloniana]
                                             <i>Cheilanthes erythraea</i>
                                             <i>Cheilanthes flexuosa</i>
                                             <i>Cheilanthes fractifera</i>
                                             <i>Cheilanthes gracilis</i>
                                             <i>Cheilanthes hastata</i>
                                                   [Pellaea auriculata]
                                                   [Pellaea lancifolia]
                                             <i>Cheilanthes hieronymi</i>
                                             <i>Cheilanthes hirsuta</i>
                                             <i>Cheilanthes hirta</i>
                                                   <i>Cheilanthes hirta f. laxa</i>
                                                         [Cheilanthes hirta var. laxa]
                                               <i>Cheilanthes hirta var. hirta</i>
                                               <i>Cheilanthes hirta var. watermeyeri</i>
                                             <i>Cheilanthes hypoleuca</i>
                                             <i>Cheilanthes incarum</i>
                                             <i>Cheilanthes induta</i>
                                             <i>Cheilanthes intramarginalis</i>
                                             <i>Cheilanthes involuta</i>
                                               <i>Cheilanthes involuta var. obscura</i>
                                             <i>Cheilanthes lasiophylla</i>
                                             <i>Cheilanthes leachii</i>
                                                   [Notholaena leachii]
                                             <i>Cheilanthes leonardii</i>
                                             <i>Cheilanthes leucopoda</i>
                                                   [Hemionitis leucopoda]
                                             <i>Cheilanthes lozanoi</i>
                                                   [Hemionitis lozanoi]
                                                   [Pellaea lozanoi]
                                               <i>Cheilanthes lozanoi var. lozanoi</i>
                                               <i>Cheilanthes lozanoi var. seemannii</i>
                                             <i>Cheilanthes marlothii</i>
                                                   [Notholaena marlothii]
                                             <i>Cheilanthes mathewsii</i>
                                             <i>Cheilanthes maxoniana</i>
                                             <i>Cheilanthes micropteris</i>
                                             <i>Cheilanthes mollis</i>
                                                   [Notholaena doradilla]
                                             <i>Cheilanthes multifida</i>
                                               <i>Cheilanthes multifida subsp. lacerata</i>
                                               <i>Cheilanthes multifida subsp. multifida</i>
                                                     [Adiantum multifidum]
                                                     [Cheilanthes bolusii]
                                             <i>Cheilanthes nitida</i>
                                             <i>Cheilanthes nudiuscula</i>
                                                   [Cheilanthes densa]
                                                   [Cheilanthes dilimanensis]
                                                   [Notholaena hirsuta]
                                                   [Notholaena sulcata]
                                             <i>Cheilanthes obducta</i>
                                             <i>Cheilanthes palmeri</i>
                                             <i>Cheilanthes parviloba</i>
                                                   [Adiantum parvilobum]
                                                   [Cheilanthes hirta var. parviloba]
                                             <i>Cheilanthes paupercula</i>
                                             <i>Cheilanthes pellaeopsis</i>
                                             <i>Cheilanthes pentagona</i>
                                             <i>Cheilanthes perlanata</i>
                                                   [Notholaena perlanata]
                                             <i>Cheilanthes persica</i>
                                             <i>Cheilanthes peruviana</i>
                                                   [Notholaena peruviana]
                                             <i>Cheilanthes pilosa</i>
                                                   [Cheilanthes macleanii]
                                             <i>Cheilanthes poeppigiana</i>
                                             <i>Cheilanthes potosina</i>
                                             <i>Cheilanthes pruinata</i>
                                             <i>Cheilanthes pteridioides</i>
                                                   [Cheilanthes fragrans]
                                             <i>Cheilanthes purpusii</i>
                                             <i>Cheilanthes pyramidalis</i>
                                             <i>Cheilanthes quadripinnata</i>
                                                   [Pellaea consobrina]
                                                   [Pellaea quadripinnata]
                                             <i>Cheilanthes radiata</i>
                                             <i>Cheilanthes robusta</i>
                                                   [Pellaea robusta]
                                             <i>Cheilanthes rosei</i>
                                             <i>Cheilanthes rufopunctata</i>
                                             <i>Cheilanthes scioana</i>
                                                   [Mohria scioana]
                                             <i>Cheilanthes sieberi</i>
                                               <i>Cheilanthes sieberi subsp. pseudovellea</i>
                                               <i>Cheilanthes sieberi subsp. sieberi</i>
                                             <i>Cheilanthes siliquosa</i>
                                             <i>Cheilanthes similis</i>
                                             <i>Cheilanthes skinneri</i>
                                                   [Hemionitis skinneri]
                                                   [Pellaea skinneri]
                                             <i>Cheilanthes smithii</i>
                                                   [Pellaea smithii]
                                             <i>Cheilanthes spiculata</i>
                                             <i>Cheilanthes squamosa</i>
                                             <i>Cheilanthes takeuchii</i>
                                             <i>Cheilanthes tenuifolia</i>
                                                   [Cheilanthes rupestris]
                                                   [Oeosporangium tenuifolium]
                                             <i>Cheilanthes tirajanae</i>
                                             <i>Cheilanthes tricholepifera</i>
                                                   [Negripteris tricholepifera]
                                             <i>Cheilanthes trichomanoides</i>
                                             <i>Cheilanthes vellea</i>
                                             <i>Cheilanthes venusta</i>
                                             <i>Cheilanthes vestita</i>
                                             <i>Cheilanthes viridis</i>
                                                   [Pteridella viridis]
                                                   [Pteris hastata]
                                               <i>Cheilanthes viridis var. glauca</i>
                                                     [Pellaea hastata var. glauca]
                                                     [Pellaea viridis var. glauca]
                                               <i>Cheilanthes viridis var. macrophylla</i>
                                                     [Cheilanthes hastata var. macrophylla]
                                                     [Pellaea viridis var. macrophylla]
                                               <i>Cheilanthes viridis var. viridis</i>
                                               <i>Cheilanthes viridis viridis</i>
                                             <i>Cheilanthes x fibrillosa</i>
                                             <i>Cheilanthes × litardierei</i>
                              Cheilanthoideae
                                     <i>Lytoneuron</i>
                                             <i>Lytoneuron acutilobum</i>
                                             <i>Lytoneuron bradei</i>
                                                   [Doryopteris bradei]
                                             <i>Lytoneuron crenulans</i>
                                             <i>Lytoneuron feei</i>
                                             <i>Lytoneuron itatiaiense</i>
                                                   [Doryopteris itatiaiensis]
                                             <i>Lytoneuron lomariaceum</i>
                                                   [Doryopteris lomariacea]
                                                   [Pteris lomariacea]
                                             <i>Lytoneuron ornithopus</i>
                                             <i>Lytoneuron paradoxum</i>
                                             <i>Lytoneuron tijucanum</i>
                                                   [Doryopteris tijucana]
                                     <i>Cheiloplecton</i>
                                             <i>Cheiloplecton rigidum</i>
                                               <i>Cheiloplecton rigidum var. lanceolatum</i>
                                               <i>Cheiloplecton rigidum var. rigidum</i>
                                     <i>Cheilosoria</i>
                                             <i>Cheilosoria chusana</i>
                                     <i>Chrysochosma</i>
                                     <i>Coniogramme</i>
                                             <i>Coniogramme affinis</i>
                                             <i>Coniogramme africana</i>
                                             <i>Coniogramme emeiensis</i>
                                             <i>Coniogramme fauriei</i>
                                             <i>Coniogramme fraxinea</i>
                                             <i>Coniogramme intermedia</i>
                                                   [Coniogramme fraxinea var. intermedia]
                                                   [Coniogramme guangdongensis]
                                             <i>Coniogramme japonica</i>
                                                   [Coniogramme centrochinensis]
                                                   [Notogramme japonica]
                                             <i>Coniogramme javanica</i>
                                                   [Gymnogramma javanica]
                                             <i>Coniogramme macrophylla</i>
                                             <i>Coniogramme pilosa</i>
                                             <i>Coniogramme procera</i>
                                             <i>Coniogramme pubescens</i>
                                                   [Gymnogramma caudata]
                                             <i>Coniogramme robusta</i>
                                             <i>Coniogramme rubicaulis</i>
                                                   [Coniogramme gigantea]
                                             <i>Coniogramme serrulata</i>
                                                   [Coniogramme caudata]
                                                   [Grammitis caudata]
                                             <i>Coniogramme subcordata</i>
                                             <i>Coniogramme suprapilosa</i>
                                             <i>Coniogramme wilsonii</i>
                                     <i>Copelandiopteris</i>
                                             <i>Copelandiopteris pachysora</i>
                                                   [Schizostege pachysora]
                                     <i>Cosentinia</i>
                                             <i>Cosentinia vellea</i>
                                               <i>Cosentinia vellea subsp. bivalens</i>
                                               <i>Cosentinia vellea subsp. vellea</i>
                                                     [Cheilanthes catanensis]
                                                     [Notholaena lanuginosa]
                                     <i>Craspedodictyum</i>
                                     <i>Cryptogramma</i>
                                             <i>Cryptogramma acrostichoides</i>
                                                   [Allosorus acrostichoides]
                                                   [Cryptogramma crispa subsp. acrostichoides]
                                             <i>Cryptogramma brunoniana</i>
                                             <i>Cryptogramma cascadensis</i>
                                             <i>Cryptogramma crispa</i>
                                                   [Pteris crispa]
                                               <i>Cryptogramma crispa var. acrostichoides</i>
                                               <i>Cryptogramma crispa var. sitchensis</i>
                                             <i>Cryptogramma densa</i>
                                             <i>Cryptogramma fumariifolia</i>
                                             <i>Cryptogramma sitchensis</i>
                                             <i>Cryptogramma stelleri</i>
                                                   [Allosorus gracilis]
                                                   [Cryptogramma gracilis]
                                                   [Pellaea gracilis]
                                                   [Pellaea stelleri]
                              Cryptogrammoideae
                                     <i>Doryopteris</i>
                                             <i>Doryopteris angelica</i>
                                             <i>Doryopteris collina</i>
                                             <i>Doryopteris concolor</i>
                                                   [Cheilanthes concolor]
                                               <i>Doryopteris concolor var. concolor</i>
                                             <i>Doryopteris conformis</i>
                                             <i>Doryopteris decipiens</i>
                                                   [Cheilanthes decipiens]
                                                   [Doryopteris tryonii]
                                                   [Hemionitis decipiens]
                                                   [Pteris decipiens]
                                             <i>Doryopteris decora</i>
                                                   [Cheilanthes decora]
                                                   [Hemionitis decora]
                                                   [Pteris decora]
                                               <i>Doryopteris decora var. decipiens</i>
                                               <i>Doryopteris decora var. decora</i>
                                             <i>Doryopteris kirkii</i>
                                                   [Cheilanthes kirkii]
                                                   [Doryopteris concolor var. kirkii]
                                                   [Doryopteris concolor var. nicklesii]
                                                   [Pellaea geraniifolia]
                                             <i>Doryopteris kitchingii</i>
                                             <i>Doryopteris lorentzii</i>
                                             <i>Doryopteris ludens</i>
                                             <i>Doryopteris nobilis</i>
                                                   [Doryopteris elegans]
                                             <i>Doryopteris ornithopus</i>
                                             <i>Doryopteris palmata</i>
                                                   [Hemionitis achariorum]
                                             <i>Doryopteris patula</i>
                                                   [Doryopteris majestosa]
                                                   [Doryopteris patula var. latesinuata]
                                             <i>Doryopteris pedata</i>
                                               <i>Doryopteris pedata var. multipartita</i>
                                               <i>Doryopteris pedata var. palmata</i>
                                             <i>Doryopteris pentagona</i>
                                             <i>Doryopteris raddiana</i>
                                                   [Doryopteris multipartita]
                                             <i>Doryopteris rediviva</i>
                                             <i>Doryopteris sagittifolia</i>
                                             <i>Doryopteris subdecipiens</i>
                                             <i>Doryopteris takeuchii</i>
                                             <i>Doryopteris triphylla</i>
                                             <i>Doryopteris varians</i>
                                     <i>Eriosorus</i>
                                             <i>Eriosorus congestus</i>
                                             <i>Eriosorus flexuosus</i>
                                               <i>Eriosorus flexuosus var. flexuosus</i>
                                               <i>Eriosorus flexuosus var. galeanus</i>
                                             <i>Eriosorus hirtus</i>
                                                   [Psilogramme chiapensis]
                                               <i>Eriosorus hirtus var. glandulosus</i>
                                               <i>Eriosorus hirtus var. hirtus</i>
                                             <i>Eriosorus hispidulus</i>
                                                   [Psilogramme hispidula]
                                               <i>Eriosorus hispidulus var. hispidulus</i>
                                             <i>Eriosorus myriophyllus</i>
                                             <i>Eriosorus rufescens</i>
                                             <i>Eriosorus villosulus</i>
                                             <i>Eriosorus warscewiczii</i>
                                     <i>Gaga</i>
                                             <i>Gaga angustifolia</i>
                                                   [Allosorus angustifolius var. minor]
                                                   [Allosorus angustifolius var. minus]
                                                   [Allosorus angustifolius]
                                                   [Cheilanthes angustifolia]
                                                   [Cheilanthes venusta var. aurata]
                                                   [Hemionitis angustifolia]
                                                   [Onychium angustifolium]
                                                   [Pellaea angustifolia]
                                             <i>Gaga apiacea</i>
                                                   [Cheilanthes apiacea]
                                             <i>Gaga arizonica</i>
                                                   [Cheilanthes arizonica]
                                                   [Cheilanthes lerstenii]
                                                   [Cheilanthes pyramidalis subsp. arizonica]
                                                   [Cheilanthes pyramidalis var. arizonica]
                                             <i>Gaga chaerophylla</i>
                                                   [Allosorus chaerophyllus]
                                                   [Cheilanthes chaerophylla]
                                                   [Hemionitis gaga]
                                             <i>Gaga complanata</i>
                                                   [Cheilanthes complanata var. interrupta]
                                                   [Cheilanthes complanata]
                                             <i>Gaga cuneata</i>
                                                   [Cassebeera cuneata]
                                                   [Cheilanthes cuneata]
                                                   [Hemionitis cuneata]
                                                   [Pellaea angustifolia var. cuneata]
                                                   [Pellaea cuneata]
                                             <i>Gaga decomposita</i>
                                                   [Allosorus decompositus]
                                                   [Cheilanthes decomposita]
                                                   [Pellaea decomposita]
                                                   [Pellaea decompositus]
                                             <i>Gaga decurrens</i>
                                                   [Cheilanthes decurrens]
                                             <i>Gaga germanotta</i>
                                             <i>Gaga harrisii</i>
                                                   [Cheilanthes harrisii]
                                             <i>Gaga hintoniorum</i>
                                                   [Cheilanthes hintoniorum]
                                             <i>Gaga hirsuta</i>
                                                   [Cheilanthes crenulata]
                                                   [Cheilanthes rufescens]
                                                   [Hemionitis hirsuta]
                                                   [Pellaea angustifolia var. elongata]
                                                   [Pellaea marginata var. pyramidalis]
                                             <i>Gaga kaulfussii</i>
                                                   [Cheilanthes glandulifera]
                                                   [Cheilanthes kaulfussii]
                                                   [Cheilanthes viscosa]
                                                   [Hemionitis kaulfussii]
                                             <i>Gaga lerstenii</i>
                                             <i>Gaga marginata</i>
                                                   [Allosorus ciliatus var. minor]
                                                   [Cheilanthes marginata]
                                                   [Hemionitis marginata]
                                                   [Pellaea marginata]
                                             <i>Gaga membranacea</i>
                                                   [Cheilanthes membranacea]
                                                   [Cheilanthes selinoides]
                                                   [Pellaea membranacea]
                                             <i>Gaga monstraparva</i>
                                             <i>Gaga pellaeopsis</i>
                                             <i>Gaga purpusii</i>
                                     <i>Gastoniella</i>
                                             <i>Gastoniella chaerophylla</i>
                                                   [Gymnogramma chaerophylla]
                                     <i>Gymnogramma</i>
                                             <i>Gymnogramma calomelanos</i>
                                             <i>Gymnogramma dealbata</i>
                                             <i>Gymnogramma elliptica</i>
                                             <i>Gymnogramma elongata</i>
                                             <i>Gymnogramma involuta</i>
                                             <i>Gymnogramma opaca</i>
                                             <i>Gymnogramma pilosa</i>
                                             <i>Gymnogramma polypodioides</i>
                                             <i>Gymnogramma sulphurea</i>
                                             <i>Gymnogramma tartarea</i>
                                             <i>Gymnogramma triangularis</i>
                                             <i>Gymnogramma villosa</i>
                                     <i>Gymnogramme</i>
                                     <i>Gymnopteris</i>
                                             <i>Gymnopteris aliena</i>
                                             <i>Gymnopteris decurrens</i>
                                             <i>Gymnopteris nicotianifolia</i>
                                             <i>Gymnopteris rufa</i>
                                             <i>Gymnopteris tomentosa</i>
                                             <i>Gymnopteris variabilis</i>
                                               <i>Gymnopteris variabilis var. lanceolata</i>
                                     <i>Haplopteris</i>
                                             <i>Haplopteris alternans</i>
                                                   [Vittaria alternans]
                                             <i>Haplopteris amboinensis</i>
                                             <i>Haplopteris anguste-elongata</i>
                                                   [Vittaria anguste-elongata]
                                             <i>Haplopteris angustifolia</i>
                                                   [Vittaria angustifolia]
                                             <i>Haplopteris dareicarpa</i>
                                                   [Monogramma dareicarpa]
                                             <i>Haplopteris doniana</i>
                                             <i>Haplopteris ensiformis</i>
                                                   [Vittaria ensiformis]
                                                   [Vittaria hainanensis]
                                             <i>Haplopteris exigua</i>
                                             <i>Haplopteris flexuosa</i>
                                             <i>Haplopteris fudzinoi</i>
                                             <i>Haplopteris graminea</i>
                                                   [Monogramma graminea]
                                             <i>Haplopteris guineensis</i>
                                                   [Vittaria guineensis]
                                               <i>Haplopteris guineensis var. orientalis</i>
                                             <i>Haplopteris humblotii</i>
                                                   [Vittaria humblotii]
                                             <i>Haplopteris linearifolia</i>
                                             <i>Haplopteris longicoma</i>
                                             <i>Haplopteris malayensis</i>
                                                   [Vittaria malayensis]
                                             <i>Haplopteris mediosora</i>
                                                   [Vittaria mediosora]
                                             <i>Haplopteris schliebenii</i>
                                                   [Vittaria schliebenii]
                                                   [Vittaria volkensii var. schliebenii]
                                             <i>Haplopteris scolopendrina</i>
                                                   [Vittaria scolopendrina]
                                             <i>Haplopteris sikkimensis</i>
                                                   [Vittaria sikkimensis]
                                             <i>Haplopteris stenophylla</i>
                                                   [Vittaria stenophylla]
                                             <i>Haplopteris taeniophylla</i>
                                                   [Vittaria taeniophylla]
                                             <i>Haplopteris volkensii</i>
                                                   [Vittaria volkensii]
                                             <i>Haplopteris zosterifolia</i>
                                                   [Vittaria elongata var. angustifolia]
                                                   [Vittaria zosterifolia]
                                     <i>Hecistopteris</i>
                                             <i>Hecistopteris pumila</i>
                                                   [Gymnogramma pumila]
                                     <i>Hemionanthes</i>
                                             <i>Hemionanthes gryphus</i>
                                                   [Cheilanthes gryphus]
                                     <i>Hemionitis</i>
                                             <i>Hemionitis arifolia</i>
                                                   [Hemionitis cordata]
                                             <i>Hemionitis citrifolia</i>
                                             <i>Hemionitis elegans</i>
                                             <i>Hemionitis griffithii</i>
                                             <i>Hemionitis levyi</i>
                                             <i>Hemionitis palmata</i>
                                             <i>Hemionitis pinnatifida</i>
                                             <i>Hemionitis rufa</i>
                                                   [Gymnogramma rufa]
                                             <i>Hemionitis subcordata</i>
                                                   [Cheilanthes subcordata]
                                                   [Gymnogramma subcordata]
                                             <i>Hemionitis tomentosa</i>
                                                   [Gymnogramma tomentosa]
                                     <i>Jamesonia</i>
                                             <i>Jamesonia accrescens</i>
                                             <i>Jamesonia alstonii</i>
                                             <i>Jamesonia aureonitens</i>
                                                   [Eriosorus aureonitens]
                                             <i>Jamesonia blepharum</i>
                                             <i>Jamesonia bogotensis</i>
                                             <i>Jamesonia brasiliensis</i>
                                             <i>Jamesonia canescens</i>
                                                   [Jamesonia imbricata var. canescens]
                                             <i>Jamesonia cheilanthoides</i>
                                                   [Eriosorus cheilanthoides]
                                             <i>Jamesonia chiapensis</i>
                                             <i>Jamesonia cinnamomea</i>
                                             <i>Jamesonia congesta</i>
                                             <i>Jamesonia cuatrecasasii</i>
                                             <i>Jamesonia elongata</i>
                                             <i>Jamesonia ewanii</i>
                                                   [Eriosorus ewanii]
                                             <i>Jamesonia flabellata</i>
                                                   [Eriosorus flabellatus]
                                                   [Gymnogramma flabellata]
                                             <i>Jamesonia flexuosa</i>
                                                   [Gymnogramma flexuosa]
                                             <i>Jamesonia glaberrima</i>
                                             <i>Jamesonia goudotii</i>
                                             <i>Jamesonia hirta</i>
                                             <i>Jamesonia hispidula</i>
                                                   [Eriosorus hispidulus var. dominicensis]
                                             <i>Jamesonia imbricata</i>
                                               <i>Jamesonia imbricata var. glutinosa</i>
                                             <i>Jamesonia novogranatensis</i>
                                                   [Eriosorus novogranatensis]
                                             <i>Jamesonia orbignyana</i>
                                                   [Eriosorus orbignyanus]
                                             <i>Jamesonia pulchra</i>
                                             <i>Jamesonia rotundifolia</i>
                                             <i>Jamesonia rufescens</i>
                                             <i>Jamesonia scalaris</i>
                                                   [Jamesonia imbricata var. scalaris]
                                             <i>Jamesonia scammanae</i>
                                             <i>Jamesonia scammaniae</i>
                                             <i>Jamesonia vellea</i>
                                             <i>Jamesonia verticalis</i>
                                             <i>Jamesonia warscewiczii</i>
                                             <i>Jamesonia wurdackii</i>
                                                   [Eriosorus wurdackii]
                                     <i>Litobrochia</i>
                                             <i>Litobrochia tripartita</i>
                                     <i>Llavea</i>
                                             <i>Llavea cordifolia</i>
                                     <i>Mickelopteris</i>
                                             <i>Mickelopteris cordata</i>
                                     <i>Mildella</i>
                                             <i>Mildella fallax</i>
                                                   [Pellaea intramarginalis var. serratifolia]
                                                   [Pteris fallax]
                                             <i>Mildella henryi</i>
                                             <i>Mildella intramarginalis</i>
                                                   [Hemionitis intramarginalis]
                                               <i>Mildella intramarginalis var. intramarginalis</i>
                                               <i>Mildella intramarginalis var. serratifolia</i>
                                             <i>Mildella nitidula</i>
                                                   [Cheilanthes nitidula]
                                                   [Oeosporangium nitidulum]
                                     <i>Monogramma</i>
                                             <i>Monogramma trichoidea</i>
                                     <i>Myriopteris</i>
                                           [Pomataphytum]
                                             <i>Myriopteris aemula</i>
                                                   [Cheilanthes aemula]
                                             <i>Myriopteris alabamensis</i>
                                                   [Cheilanthes alabamensis]
                                                   [Pellaea alabamensis]
                                             <i>Myriopteris allosuroides</i>
                                                   [Cheilanthes allosuroides]
                                                   [Hemionitis allosuroides]
                                             <i>Myriopteris aurea</i>
                                                   [Cheilanthes aurea]
                                                   [Cheilanthes bonariensis]
                                                   [Cheilanthes ferruginea]
                                                   [Hemionitis bonariensis]
                                                   [Notholaena aurea]
                                                   [Notholaena bonariensis]
                                                   [Notholaena chiapensis]
                                             <i>Myriopteris chipinquensis</i>
                                                   [Cheilanthes chipinquensis]
                                             <i>Myriopteris cinnamomea</i>
                                                   [Cheilanthes tryonii]
                                             <i>Myriopteris clevelandii</i>
                                                   [Cheilanthes clevelandii]
                                             <i>Myriopteris cooperae</i>
                                                   [Cheilanthes cooperae]
                                             <i>Myriopteris covillei</i>
                                                   [Cheilanthes covillei]
                                             <i>Myriopteris cucullans</i>
                                                   [Cheilanthes cucullans]
                                                   [Cheilanthes micromera]
                                                   [Hemionitis cucullans]
                                             <i>Myriopteris fendleri</i>
                                                   [Cheilanthes fendleri]
                                             <i>Myriopteris fimbriata</i>
                                                   [Cheilanthes fimbriata]
                                                   [Cheilanthes microphylla var. fimbriata]
                                             <i>Myriopteris gracilis</i>
                                                   [Cheilanthes feei]
                                             <i>Myriopteris gracillima</i>
                                                   [Cheilanthes gracillima var. aberrans]
                                                   [Cheilanthes gracillima]
                                             <i>Myriopteris grusziae</i>
                                             <i>Myriopteris intertexta</i>
                                                   [Cheilanthes covillei subsp. intertexta]
                                                   [Cheilanthes intertexta]
                                             <i>Myriopteris jamaicensis</i>
                                                   [Cheilanthes jamaicensis]
                                             <i>Myriopteris lanosa</i>
                                                   [Cheilanthes lanosa]
                                                   [Nephrodium lanosum]
                                             <i>Myriopteris lendigera</i>
                                                   [Cheilanthes lendigera]
                                                   [Cheilanthes minor]
                                                   [Hemionitis lendigera]
                                                   [Pomataphytum pocillatum]
                                             <i>Myriopteris lindheimeri</i>
                                                   [Cheilanthes lindheimeri]
                                             <i>Myriopteris longipila</i>
                                                   [Cheilanthes longipila]
                                               <i>Myriopteris longipila subsp. brevipila</i>
                                                     [Cheilanthes longipila var. brevipila]
                                             <i>Myriopteris marsupianthes</i>
                                                   [Cheilanthes marsupianthes]
                                                   [Hemionitis marsupianthes]
                                             <i>Myriopteris maxoniana</i>
                                                   [Cheilanthes maxoniana]
                                             <i>Myriopteris mexicana</i>
                                                   [Cheilanthes mexicana]
                                             <i>Myriopteris mickelii</i>
                                                   [Cheilanthes mickelii]
                                             <i>Myriopteris microphylla</i>
                                                   [Cheilanthes microphylla var. elongata]
                                                   [Cheilanthes microphylla var. microphylla]
                                                   [Cheilanthes microphylla]
                                             <i>Myriopteris moritziana</i>
                                                   [Cheilanthes moritziana]
                                             <i>Myriopteris myriophylla</i>
                                                   [Cheilanthes elegans]
                                                   [Cheilanthes myriophylla var. elegans]
                                                   [Cheilanthes myriophylla]
                                                   [Hemionitis myriophylla]
                                                   [Myriopteris intermedia]
                                                   [Myriopteris paleacea]
                                             <i>Myriopteris newberryi</i>
                                                   [Cheilanthes newberryi]
                                                   [Notholaena newberryi]
                                             <i>Myriopteris notholaenoides</i>
                                                   [Cheilanthes notholaenoides]
                                                   [Hemionitis notholaenoides]
                                             <i>Myriopteris parryi</i>
                                                   [Cheilanthes parryi]
                                                   [Notholaena parryi]
                                             <i>Myriopteris peninsularis</i>
                                                   [Cheilanthes peninsularis]
                                               <i>Myriopteris peninsularis subsp. insularis</i>
                                                     [Cheilanthes peninsularis var. insularis]
                                               <i>Myriopteris peninsularis subsp. peninsularis</i>
                                             <i>Myriopteris pringlei</i>
                                                   [Cheilanthes pringlei]
                                               <i>Myriopteris pringlei subsp. moncloviensis</i>
                                                     [Cheilanthes moncloviensis]
                                                     [Cheilanthes pringlei var. moncloviensis]
                                               <i>Myriopteris pringlei subsp. pringlei</i>
                                                     [Cheilanthes pringlei var. pringlei]
                                             <i>Myriopteris rawsonii</i>
                                                   [Notholaena rawsonii]
                                             <i>Myriopteris rufa</i>
                                                   [Cheilanthes castanea]
                                                   [Cheilanthes eatoni]
                                                   [Cheilanthes eatonii eatonii]
                                                   [Cheilanthes eatonii f. castanea]
                                                   [Cheilanthes eatonii f. eatonii]
                                                   [Cheilanthes eatonii]
                                                   [Cheilanthes pinkavii]
                                                   [Cheilanthes schaffneri]
                                                   [Cheilanthes tomentosa var. eatonii]
                                                   [Hemionitis eatonii]
                                             <i>Myriopteris scabra</i>
                                                   [Cheilanthes aspera]
                                                   [Cheilanthes horridula]
                                                   [Pellaea aspera]
                                                   [Pellaea scabra]
                                             <i>Myriopteris scariosa</i>
                                                   [Cheilanthes ornatissima]
                                                   [Cheilanthes scariosa]
                                             <i>Myriopteris tomentosa</i>
                                                   [Cheilanthes bradburii]
                                                   [Cheilanthes tomentosa]
                                                   [Hemionitis bradburii]
                                             <i>Myriopteris viscida</i>
                                                   [Cheilanthes viscida]
                                             <i>Myriopteris windhamii</i>
                                                   [Cheilanthes villosa]
                                             <i>Myriopteris wootonii</i>
                                                   [Cheilanthes wootoni]
                                                   [Cheilanthes wootonii]
                                             <i>Myriopteris wrightii</i>
                                                   [Cheilanthes wrightii]
                                             <i>Myriopteris yatskievychiana</i>
                                                   [Cheilanthes yatskievychiana]
                                             <i>Myriopteris yavapensis</i>
                                                   [Cheilanthes yavapensis]
                                             <i>Myriopteris × fibrillosa</i>
                                                   [Cheilanthes fibrillosa]
                                                   [Cheilanthes lanuginosa var. fibrillosa]
                                             <i>Myriopteris × parishii</i>
                                                   [Cheilanthes parishii]
                                                   [Cheilanthes × parishii]
                                                   [Myriopteris parishii]
                                             <i>Myriopteris ×parishii</i>
                                     <i>Negripteris</i>
                                     <i>Nephopteris</i>
                                     <i>Neurocallis</i>
                                             <i>Neurocallis praestantissima</i>
                                     <i>Neurogramme</i>
                                     <i>Notholaena</i>
                                             <i>Notholaena affinis</i>
                                                   [Notholaena angusta]
                                             <i>Notholaena aliena</i>
                                                   [Cheilanthes aliena]
                                             <i>Notholaena aschenborniana</i>
                                                   [Cheilanthes aschenborniana]
                                             <i>Notholaena aurantiaca</i>
                                                   [Cheilanthes aurantia]
                                             <i>Notholaena aureolina</i>
                                             <i>Notholaena brachycaulis</i>
                                             <i>Notholaena brachypus</i>
                                                   [Cheilanthes brachypus]
                                                   [Hemionitis brachypus]
                                             <i>Notholaena brevistipes</i>
                                             <i>Notholaena bryopoda</i>
                                                   [Cheilanthes bryopoda]
                                             <i>Notholaena californica</i>
                                               <i>Notholaena californica subsp. californica</i>
                                                     [Aleuritopteris cretacea subsp. nigrescens]
                                                     [Aleuritopteris cretacea]
                                                     [Cheilanthes deserti]
                                                     [Notholaena californica subsp. nigrescens]
                                                     [Notholaena candida var. accessita]
                                               <i>Notholaena californica subsp. leucophylla</i>
                                             <i>Notholaena candida</i>
                                                   [Cheilanthes candida]
                                                   [Hemionitis candida]
                                               <i>Notholaena candida var. candida</i>
                                                     [Cheilanthes candida var. candida]
                                               <i>Notholaena candida var. copelandii</i>
                                                     [Cheilanthes candida var. copelandii]
                                               <i>Notholaena candida var. quinquefidopalmata</i>
                                             <i>Notholaena copelandii</i>
                                             <i>Notholaena crassifolia</i>
                                             <i>Notholaena cubensis</i>
                                             <i>Notholaena dealbata</i>
                                             <i>Notholaena delicatula</i>
                                             <i>Notholaena fraseri</i>
                                                   [Cheilanthes fraseri]
                                             <i>Notholaena galapagensis</i>
                                             <i>Notholaena galeottii</i>
                                                   [Cheilanthes galeottii]
                                                   [Hemionitis galeottii]
                                                   [Notholaena arsenii]
                                                   [Notholaena hyalina]
                                             <i>Notholaena geraniifolia</i>
                                                   [Cheilanthes geraniifolia]
                                             <i>Notholaena goyazensis</i>
                                                   [Cheilanthes goyazensis]
                                             <i>Notholaena grayi</i>
                                               <i>Notholaena grayi grayi</i>
                                               <i>Notholaena grayi subsp. grayi</i>
                                                     [Cheilanthes grayi]
                                               <i>Notholaena grayi subsp. sonorensis</i>
                                             <i>Notholaena greggii</i>
                                                   [Cheilanthes greggii]
                                                   [Pellaea greggii]
                                             <i>Notholaena hookeri</i>
                                             <i>Notholaena hypoleuca</i>
                                             <i>Notholaena inaequalis</i>
                                                   [Cheilanthes inaequalis var. inaequalis]
                                                   [Cheilanthes inaequalis]
                                             <i>Notholaena jacalensis</i>
                                             <i>Notholaena jaliscana</i>
                                                   [Cheilanthes aurea var. palmeri]
                                             <i>Notholaena lemmonii</i>
                                                   [Cheilanthes lemmonii]
                                                   [Hemionitis lemmonii]
                                               <i>Notholaena lemmonii var. australis</i>
                                               <i>Notholaena lemmonii var. lemmonii</i>
                                             <i>Notholaena leonina</i>
                                             <i>Notholaena marantae</i>
                                             <i>Notholaena meridionalis</i>
                                             <i>Notholaena mollis</i>
                                             <i>Notholaena nealleyi</i>
                                               <i>Notholaena nealleyi var. mexicana</i>
                                             <i>Notholaena neglecta</i>
                                                   [Cheilanthes neglecta]
                                             <i>Notholaena nivea</i>
                                               <i>Notholaena nivea var. dealbata</i>
                                               <i>Notholaena nivea var. nivea</i>
                                             <i>Notholaena ochracea</i>
                                                   [Aleuritopteris aurantiaca]
                                                   [Cheilanthes aurantiaca]
                                             <i>Notholaena pallens</i>
                                             <i>Notholaena pringlei</i>
                                             <i>Notholaena revoluta</i>
                                             <i>Notholaena rigida</i>
                                             <i>Notholaena rosei</i>
                                                   [Cheilanthes coruscans]
                                             <i>Notholaena schaffneri</i>
                                                   [Aleuritopteris schaffneri]
                                                   [Cheilanthes nealleyi]
                                                   [Hemionitis schaffneri]
                                               <i>Notholaena schaffneri var. mexicana</i>
                                               <i>Notholaena schaffneri var. nealleyi</i>
                                             <i>Notholaena standleyi</i>
                                                   [Cheilanthes hookeri]
                                                   [Cheilanthes standleyi]
                                             <i>Notholaena sulphurea</i>
                                                   [Cheilanthes sulphurea]
                                                   [Hemionitis sulphurea]
                                                   [Notholaena cretacea]
                                                   [Pteris sulphurea]
                                             <i>Notholaena tomentosa</i>
                                             <i>Notholaena trichomanoides</i>
                                                   [Chrysochosma trichomanoides]
                                             <i>Notholaena vellea</i>
                                             <i>Notholaena weatherbiana</i>
                                     <i>Ochropteris</i>
                                     <i>Oeosporangium</i>
                                             <i>Oeosporangium belangeri</i>
                                                   [Cheilanthes belangeri]
                                                   [Cheilanthes varians]
                                                   [Pteris caespitosa]
                                             <i>Oeosporangium chusanum</i>
                                                   [Cheilanthes chusana]
                                             <i>Oeosporangium coriaceum</i>
                                             <i>Oeosporangium elegans</i>
                                                   [Cheilanthes mysurensis]
                                                   [Cheilanthes opposita]
                                             <i>Oeosporangium guanchicum</i>
                                             <i>Oeosporangium hancockii</i>
                                                   [Cheilanthes taliensis]
                                             <i>Oeosporangium hispanicum</i>
                                                   [Cheilanthes hispanica]
                                             <i>Oeosporangium insigne</i>
                                                   [Cheilanthes insignis]
                                             <i>Oeosporangium kuhnii</i>
                                                   [Aleuritopteris kuhnii]
                                                   [Cheilanthes brandtii]
                                                   [Cheilanthes kuhnii var. brandtii]
                                                   [Cheilanthes kuhnii]
                                             <i>Oeosporangium nudiusculum</i>
                                                   [Cheilanthes javensis]
                                             <i>Oeosporangium patulum</i>
                                             <i>Oeosporangium persica</i>
                                                   [Cheilanthes szovitsii]
                                             <i>Oeosporangium pteridioides</i>
                                               <i>Oeosporangium pteridioides subsp. acrosticum</i>
                                                     [Cheilanthes acrostica]
                                                     [Cheilanthes odora]
                                               <i>Oeosporangium pteridioides subsp. pteridioides</i>
                                                     [Cheilanthes maderensis]
                                                     [Hemionitis pteridioides]
                                             <i>Oeosporangium pulchellum</i>
                                                   [Cheilanthes pulchella]
                                             <i>Oeosporangium stramineum</i>
                                             <i>Oeosporangium subvillosum</i>
                                                   [Aleuritopteris subvillosa]
                                                   [Cheilanthes subvillosa]
                                             <i>Oeosporangium thwaitesii</i>
                                                   [Cheilanthes thwaitesii]
                                             <i>Oeosporangium tinaei</i>
                                                   [Cheilanthes tinaei]
                                             <i>Oeosporangium velutinum</i>
                                                   [Notholaena velutina]
                                             <i>Oeosporangium viride</i>
                                                   [Pteris viridis]
                                     <i>Oetosis</i>
                                     <i>Onychium</i>
                                             <i>Onychium cryptogrammoides</i>
                                             <i>Onychium densum</i>
                                             <i>Onychium divaricatum</i>
                                                   [Onychium melanolepis]
                                             <i>Onychium japonicum</i>
                                                   [Pteris japonica]
                                               <i>Onychium japonicum var. lucidum</i>
                                             <i>Onychium lucidum</i>
                                                   [Onychium contiguum]
                                             <i>Onychium plumosum</i>
                                             <i>Onychium siliculosum</i>
                                                   [Acrostichum viviparum]
                                                   [Lomaria aurea]
                                                   [Onychium auratum]
                                             <i>Onychium tenuifrons</i>
                                     <i>Ormopteris</i>
                                             <i>Ormopteris crenata</i>
                                                   [Pellaea crenata]
                                             <i>Ormopteris gleichenioides</i>
                                                   [Cassebeera gleichenioides]
                                             <i>Ormopteris pinnata</i>
                                                   [Cassebeera pinnata]
                                             <i>Ormopteris riedelii</i>
                                                   [Pellaea riedelii]
                                     <i>Paraceterach</i>
                                             <i>Paraceterach muelleri</i>
                                             <i>Paraceterach vestita</i>
                                     <i>Paragymnopteris</i>
                                             <i>Paragymnopteris bipinnata</i>
                                             <i>Paragymnopteris delavayi</i>
                                             <i>Paragymnopteris marantae</i>
                                               <i>Paragymnopteris marantae subsp. marantae</i>
                                                     [Cheilanthes marantae var. cupripaleacea]
                                                     [Cheilanthes marantae]
                                                     [Gymnogramma marantae]
                                                     [Paraceterach marantae]
                                               <i>Paragymnopteris marantae subsp. subcordata</i>
                                                     [Cheilanthes marantae subsp. subcordata]
                                             <i>Paragymnopteris sargentii</i>
                                             <i>Paragymnopteris vestita</i>
                                                   [Grammitis vestita]
                                                   [Gymnogramma vestita]
                                                   [Gymnopteris vestita]
                                     <i>Parahemionitis</i>
                              Parkerioideae
                                     <i>Pellaea</i>
                                           [Pteridella]
                                             <i>Pellaea allosuroides</i>
                                             <i>Pellaea andromedifolia</i>
                                                   [Pellaea andromedifolia f. pubescens]
                                               <i>Pellaea andromedifolia var. andromedifolia</i>
                                               <i>Pellaea andromedifolia var. pubescens</i>
                                               <i>Pellaea andromedifolia var. rubens</i>
                                             <i>Pellaea angolensis</i>
                                             <i>Pellaea angulosa</i>
                                                   [Pteris articulata]
                                             <i>Pellaea arsenii</i>
                                             <i>Pellaea atropurpurea</i>
                                                   [Allosorus atropurpureus]
                                                   [Hemionitis atropurpurea]
                                               <i>Pellaea atropurpurea var. atropurpurea</i>
                                               <i>Pellaea atropurpurea var. bushii</i>
                                             <i>Pellaea boivinii</i>
                                             <i>Pellaea brachyptera</i>
                                                   [Pellaea bella]
                                             <i>Pellaea breweri</i>
                                             <i>Pellaea bridgesii</i>
                                             <i>Pellaea calomelanos</i>
                                               <i>Pellaea calomelanos var. swynnertoniana</i>
                                                     [Pellaea swynnertoniana]
                                             <i>Pellaea compacta</i>
                                             <i>Pellaea cordifolia</i>
                                                   [Pellaea cardiomorpha]
                                                   [Pellaea cordata]
                                                   [Pellaea sagittata var. cordata]
                                             <i>Pellaea cymbiformis</i>
                                             <i>Pellaea dealbata</i>
                                             <i>Pellaea densa</i>
                                             <i>Pellaea doniana</i>
                                             <i>Pellaea dura</i>
                                               <i>Pellaea dura var. dura</i>
                                               <i>Pellaea dura var. holstii</i>
                                                     [Pellaea holstii]
                                                     [Pteridella holstii]
                                               <i>Pellaea dura var. latipinna</i>
                                               <i>Pellaea dura var. schweinfurthii</i>
                                                     [Pellaea schweinfurthii]
                                                     [Pteridella schweinfurthii]
                                             <i>Pellaea falcata</i>
                                                   [Allosorus falcatus]
                                                   [Pteris falcata]
                                             <i>Pellaea flavescens</i>
                                             <i>Pellaea gastonyi</i>
                                             <i>Pellaea glabella</i>
                                               <i>Pellaea glabella glabella</i>
                                               <i>Pellaea glabella subsp. glabella</i>
                                               <i>Pellaea glabella subsp. missouriensis</i>
                                                     [Pellaea glabella var. missouriensis]
                                               <i>Pellaea glabella subsp. occidentalis</i>
                                                     [Pellaea atropurpurea var. occidentalis]
                                               <i>Pellaea glabella subsp. simplex</i>
                                                     [Pellaea atropurpurea var. simplex]
                                                     [Pellaea glabella var. simplex]
                                                     [Pellaea occidentalis subsp. simplex]
                                                     [Pellaea suksdorfiana]
                                               <i>Pellaea glabella var. glabella</i>
                                               <i>Pellaea glabella var. nana</i>
                                               <i>Pellaea glabella var. occidentalis</i>
                                             <i>Pellaea glauca</i>
                                                   [Acrostichum glaucum]
                                                   [Cheilanthes glauca]
                                                   [Hemionitis glauca]
                                             <i>Pellaea gleichenioides</i>
                                             <i>Pellaea hastata</i>
                                             <i>Pellaea intermedia</i>
                                                   [Pellaea intermedia f. pubescens]
                                                   [Pellaea intermedia var. pubescens]
                                             <i>Pellaea intramarginalis</i>
                                             <i>Pellaea involuta</i>
                                             <i>Pellaea leucomelas</i>
                                             <i>Pellaea longipilosa</i>
                                             <i>Pellaea lyngholmii</i>
                                             <i>Pellaea mucronata</i>
                                                   [Pellaea macronata]
                                               <i>Pellaea mucronata subsp. californica</i>
                                                     [Pellaea wrightiana var. compacta]
                                               <i>Pellaea mucronata subsp. mucronata</i>
                                                     [Allosorus mucronatus]
                                                     [Pellaea wrightiana var. longimucronata]
                                               <i>Pellaea mucronata var. californica</i>
                                               <i>Pellaea mucronata var. mucronata</i>
                                             <i>Pellaea muelleri</i>
                                             <i>Pellaea nana</i>
                                                   [Pellaea falcata var. nana]
                                             <i>Pellaea nitidula</i>
                                             <i>Pellaea nivea</i>
                                             <i>Pellaea notabilis</i>
                                             <i>Pellaea oaxacana</i>
                                             <i>Pellaea occidentalis</i>
                                             <i>Pellaea ornithopus</i>
                                             <i>Pellaea ovata</i>
                                                   [Hemionitis ovata]
                                                   [Pellaea flexuosa]
                                             <i>Pellaea paradoxa</i>
                                             <i>Pellaea pectiniformis</i>
                                             <i>Pellaea pinnata</i>
                                             <i>Pellaea pringlei</i>
                                             <i>Pellaea prolifera</i>
                                             <i>Pellaea pteroides</i>
                                             <i>Pellaea pumila</i>
                                             <i>Pellaea regnelliana</i>
                                                   [Cheilanthes regnelliana]
                                             <i>Pellaea reynoldsii</i>
                                                   [Paraceterach reynoldsii]
                                             <i>Pellaea ribae</i>
                                             <i>Pellaea riedellii</i>
                                             <i>Pellaea rigida</i>
                                             <i>Pellaea rotundifolia</i>
                                                   [Pteris rotundifolia]
                                             <i>Pellaea sagittata</i>
                                                   [Hemionitis emperatricella]
                                                   [Pellaea sagittata var. sagittata]
                                             <i>Pellaea schippersii</i>
                                             <i>Pellaea seemannii</i>
                                             <i>Pellaea ternifolia</i>
                                               <i>Pellaea ternifolia subsp. arizonica</i>
                                               <i>Pellaea ternifolia subsp. brandegeei</i>
                                               <i>Pellaea ternifolia subsp. ternifolia</i>
                                                     [Hemionitis ternifolia]
                                                     [Pteris ternifolia]
                                               <i>Pellaea ternifolia subsp. villosa</i>
                                               <i>Pellaea ternifolia var. ternifolia</i>
                                             <i>Pellaea ternifolia x wrightiana</i>
                                             <i>Pellaea truncata</i>
                                                   [Pellaea longimucronata]
                                             <i>Pellaea villosa</i>
                                             <i>Pellaea viridis</i>
                                             <i>Pellaea wrightiana</i>
                                                   [Pellaea ternifolia var. wrightiana]
                                             <i>Pellaea x glaciogena</i>
                                             <i>Pellaea x wagneri</i>
                                             <i>Pellaea zygophylla</i>
                                                   [Pteris zygophylla]
                                     <i>Pentagramma</i>
                                             <i>Pentagramma glanduloviscida</i>
                                             <i>Pentagramma maxonii</i>
                                             <i>Pentagramma pallida</i>
                                             <i>Pentagramma rebmanii</i>
                                             <i>Pentagramma triangularis</i>
                                                   [Pityrogramma triangularis var. viridis]
                                                   [Pityrogramma triangularis]
                                               <i>Pentagramma triangularis subsp. triangularis</i>
                                                     [Ceropteris triangularis]
                                                     [Gymnopteris triangularis]
                                               <i>Pentagramma triangularis triangularis</i>
                                               <i>Pentagramma triangularis var. maxonii</i>
                                                     [Pentagramma triangularis subsp. maxonii]
                                                     [Pityrogramma triangularis var. maxonii]
                                               <i>Pentagramma triangularis var. rebmanii</i>
                                                     [Pentagramma triangularis subsp. rebmanii]
                                               <i>Pentagramma triangularis var. semipallida</i>
                                                     [Pentagramma triangularis subsp. semipallida]
                                               <i>Pentagramma triangularis var. triangularis</i>
                                               <i>Pentagramma triangularis var. viscosa</i>
                                                     [Pentagramma triangularis subsp. viscosa]
                                                     [Pityrogramma triangularis var. viscosa]
                                                     [Pityrogramma viscosa]
                                             <i>Pentagramma viscosa</i>
                                                   [Gymnogramma viscosa]
                                     <i>Pityrogramma</i>
                                             <i>Pityrogramma argentea</i>
                                             <i>Pityrogramma auriantica</i>
                                                   [Gymnogramma aurantiaca]
                                             <i>Pityrogramma austroamericana</i>
                                             <i>Pityrogramma calomelanos</i>
                                                   [Ceropteris serrata]
                                                   [Gymnogramma calomelanos var. aureoflava]
                                                   [Gymnogramma distans]
                                               <i>Pityrogramma calomelanos var. aureoflava</i>
                                               <i>Pityrogramma calomelanos var. austroamericana</i>
                                               <i>Pityrogramma calomelanos var. calomelanos</i>
                                             <i>Pityrogramma chrysoconia</i>
                                                   [Pityrogramma decomposita]
                                                   [Pityrogramma ornithopteris]
                                             <i>Pityrogramma chrysophylla</i>
                                                   [Gymnogramma calomelanos var. chrysophylla]
                                                   [Gymnogramma chrysophylla]
                                               <i>Pityrogramma chrysophylla var. gabrielae</i>
                                               <i>Pityrogramma chrysophylla var. subflexuosa</i>
                                             <i>Pityrogramma dealbata</i>
                                             <i>Pityrogramma ebenea</i>
                                                   [Gymnogramma peruviana]
                                                   [Pityrogramma tartarea var. tartarea]
                                                   [Pityrogramma tartarea]
                                                   [Pityrogramma tripinnata]
                                               <i>Pityrogramma ebenea var. aurata</i>
                                                     [Pityrogramma presliana]
                                                     [Pityrogramma tartarea var. aurata]
                                             <i>Pityrogramma euchrysa</i>
                                                   [Pityrogramma chrysophylla var. euchrysa]
                                             <i>Pityrogramma ferruginea</i>
                                             <i>Pityrogramma humbertii</i>
                                               <i>Pityrogramma humbertii var. elongata</i>
                                             <i>Pityrogramma hybrida</i>
                                             <i>Pityrogramma lehmannii</i>
                                                   [Gymnogramma lehmannii]
                                             <i>Pityrogramma ochracea</i>
                                                   [Ceropteris ochracea]
                                                   [Pityrogramma adiantoides]
                                                   [Pityrogramma calomelanos var. ochracea]
                                             <i>Pityrogramma pallida</i>
                                                   [Pityrogramma triangularis var. pallida]
                                             <i>Pityrogramma peruviana</i>
                                             <i>Pityrogramma pulchella</i>
                                             <i>Pityrogramma rupicola</i>
                                             <i>Pityrogramma schaffneri</i>
                                             <i>Pityrogramma schizophylla</i>
                                                   [Gymnogramma schizophylla]
                                             <i>Pityrogramma semipallida</i>
                                                   [Pityrogramma triangularis var. semipallida]
                                             <i>Pityrogramma subflexuosa</i>
                                             <i>Pityrogramma sulphurea</i>
                                                   [Ceropteris sulphurea]
                                             <i>Pityrogramma triangulata</i>
                                                   [Ceropteris triangulata]
                                             <i>Pityrogramma trifoliata</i>
                                                   [Gymnogramma trifoliata]
                                             <i>Pityrogramma williamsii</i>
                                             <i>Pityrogramma x mackenneyi</i>
                                     <i>Platyzoma</i>
                                     <i>Polytaenium</i>
                                             <i>Polytaenium cajenense</i>
                                                   [Antrophyum brasilianum]
                                                   [Antrophyum cayennense]
                                                   [Antrophyum lacantunense]
                                                   [Antrophyum spathulatum]
                                                   [Antrophyum subsessile]
                                                   [Hemionitis brasiliana]
                                                   [Polytaenium brasilianum]
                                             <i>Polytaenium chlorosporum</i>
                                             <i>Polytaenium citrifolium</i>
                                             <i>Polytaenium discoideum</i>
                                             <i>Polytaenium dussianum</i>
                                                   [Antrophyum dussianum]
                                             <i>Polytaenium feei</i>
                                                   [Antrophyum feei]
                                                   [Polytaenium elongatum]
                                             <i>Polytaenium guayanense</i>
                                             <i>Polytaenium intramarginale</i>
                                             <i>Polytaenium lanceolatum</i>
                                             <i>Polytaenium lineatum</i>
                                             <i>Polytaenium ophioglossoides</i>
                                                   [Antrophyum ophioglossoides]
                                             <i>Polytaenium urbanii</i>
                                     <i>Pomatophytum</i>
                                             <i>Pomatophytum pocillatum</i>
                                     <i>Psilogramme</i>
                                             <i>Psilogramme hispidulus</i>
                                             <i>Psilogramme portoricensis</i>
                                     <i>Pteridanetium</i>
                              Pteridoideae
                                     <i>Cerosora</i>
                                             <i>Cerosora argentea</i>
                                                   [Gymnogramma argentea]
                                                   [Gymnogramma rosea]
                                               <i>Cerosora argentea var. aurea</i>
                                                     [Gymnogramma aurea]
                                                     [Pityrogramma aurea]
                                             <i>Cerosora microphylla</i>
                                                   [Gymnogramma microphylla]
                                     <i>Pteris</i>
                                             <i>Pteris actiniopteroides</i>
                                             <i>Pteris aculeata</i>
                                             <i>Pteris albersii</i>
                                               <i>Pteris albersii subsp. albersii</i>
                                               <i>Pteris albersii subsp. mufidiensis</i>
                                               <i>Pteris albersii subsp. uaraguenssensis</i>
                                             <i>Pteris altissima</i>
                                                   [Pteris elata]
                                                   [Pteris kunzeana]
                                                   [Pteris palustris]
                                             <i>Pteris amoena</i>
                                                   [Pteris nakasimae]
                                                   [Pteris purpureorachis]
                                             <i>Pteris angustata</i>
                                             <i>Pteris angustipinna</i>
                                             <i>Pteris anopteris</i>
                                             <i>Pteris arborea</i>
                                                   [Pteris spinosa]
                                             <i>Pteris argentea</i>
                                             <i>Pteris arguta</i>
                                             <i>Pteris argyraea</i>
                                             <i>Pteris arisanensis</i>
                                             <i>Pteris armata</i>
                                             <i>Pteris aspericaulis</i>
                                             <i>Pteris atropurpurea</i>
                                             <i>Pteris atrovirens</i>
                                                   [Pteris spinulifera]
                                                   <i>Pteris atrovirens f. atrovirens</i>
                                                   <i>Pteris atrovirens f. laevicosta</i>
                                             <i>Pteris auquieri</i>
                                             <i>Pteris bahamensis</i>
                                                   [Pycnodoria bahamensis]
                                                   [Pycnodoria pinetorum]
                                             <i>Pteris balansae</i>
                                             <i>Pteris barombiensis</i>
                                             <i>Pteris bavazzanoi</i>
                                             <i>Pteris bella</i>
                                             <i>Pteris berteroana</i>
                                             <i>Pteris biaurita</i>
                                               <i>Pteris biaurita subsp. fornicata</i>
                                               <i>Pteris biaurita subsp. walkeriana</i>
                                             <i>Pteris blumeana</i>
                                             <i>Pteris boliviensis</i>
                                             <i>Pteris brasiliensis</i>
                                             <i>Pteris brassii</i>
                                             <i>Pteris brevis</i>
                                             <i>Pteris buchananii</i>
                                             <i>Pteris burtonii</i>
                                             <i>Pteris cadieri</i>
                                             <i>Pteris calocarpa</i>
                                             <i>Pteris camerooniana</i>
                                             <i>Pteris catoptera</i>
                                             <i>Pteris chiapensis</i>
                                             <i>Pteris chilensis</i>
                                             <i>Pteris chrysocarpa</i>
                                             <i>Pteris ciliaris</i>
                                             <i>Pteris clemensiae</i>
                                             <i>Pteris comans</i>
                                                   [Pteris endlicheriana]
                                             <i>Pteris commutata</i>
                                             <i>Pteris consanguinea</i>
                                             <i>Pteris coriacea</i>
                                             <i>Pteris crassipes</i>
                                             <i>Pteris crenata</i>
                                             <i>Pteris cretica</i>
                                               <i>Pteris cretica subsp. cretica</i>
                                                     [Pteris cretica var. intermedia]
                                                     [Pycnodoria cretica]
                                               <i>Pteris cretica subsp. laeta</i>
                                               <i>Pteris cretica var. albolineata</i>
                                               <i>Pteris cretica var. cretica</i>
                                               <i>Pteris cretica var. laeta</i>
                                             <i>Pteris dactylina</i>
                                             <i>Pteris dalhousiae</i>
                                             <i>Pteris dataensis</i>
                                             <i>Pteris decrescens</i>
                                             <i>Pteris decurrens</i>
                                                   [Pteris horizontalis]
                                             <i>Pteris deflexa</i>
                                             <i>Pteris delchampsii</i>
                                             <i>Pteris deltea</i>
                                             <i>Pteris deltodon</i>
                                                   [Pteris trifoliata]
                                             <i>Pteris deltoidea</i>
                                             <i>Pteris dentata</i>
                                               <i>Pteris dentata subsp. flabellata</i>
                                             <i>Pteris denticulata</i>
                                             <i>Pteris dimorpha</i>
                                             <i>Pteris dispar</i>
                                             <i>Pteris distans</i>
                                             <i>Pteris dixitii</i>
                                             <i>Pteris edanyoi</i>
                                             <i>Pteris ekemae</i>
                                             <i>Pteris elmeri</i>
                                             <i>Pteris elongatiloba</i>
                                             <i>Pteris emodi</i>
                                                   [Pteris vittata subsp. emodi]
                                             <i>Pteris endoneura</i>
                                             <i>Pteris ensiformis</i>
                                               <i>Pteris ensiformis var. merrillii</i>
                                               <i>Pteris ensiformis var. victoriae</i>
                                                     [Pteris victoriae]
                                             <i>Pteris erosa</i>
                                             <i>Pteris excelsa</i>
                                             <i>Pteris fauriei</i>
                                                   [Pteris fauriei var. fauriei]
                                                   [Pteris khasiana subsp. fauriei]
                                             <i>Pteris finotii</i>
                                             <i>Pteris flabellata</i>
                                             <i>Pteris formosana</i>
                                             <i>Pteris fraseri</i>
                                             <i>Pteris friesii</i>
                                             <i>Pteris gallinopes</i>
                                             <i>Pteris gigantea</i>
                                             <i>Pteris glaucovirens</i>
                                             <i>Pteris grandifolia</i>
                                             <i>Pteris grevilleana</i>
                                               <i>Pteris grevilleana subsp. grevilleana</i>
                                                     [Pteris ensiformis var. grevilleana]
                                             <i>Pteris haenkeana</i>
                                             <i>Pteris hamulosa</i>
                                                   [Pteris acanthoneura]
                                                   [Pteris quadriaurita var. hamulosa]
                                             <i>Pteris henryi</i>
                                             <i>Pteris heteroclita</i>
                                             <i>Pteris heteromorpha</i>
                                             <i>Pteris hexagona</i>
                                                   [Adiantum hexagona]
                                                   [Anopteris heterophylla]
                                                   [Onychium strictum]
                                                   [Pteris heterophylla]
                                               <i>Pteris hexagona var. multifida</i>
                                             <i>Pteris hillebrandii</i>
                                             <i>Pteris hirsuta</i>
                                             <i>Pteris hispaniolica</i>
                                             <i>Pteris hookeriana</i>
                                             <i>Pteris humbertii</i>
                                             <i>Pteris inaequalis</i>
                                             <i>Pteris incompleta</i>
                                             <i>Pteris inermis</i>
                                             <i>Pteris insignis</i>
                                             <i>Pteris intricata</i>
                                             <i>Pteris irregularis</i>
                                             <i>Pteris kawabatae</i>
                                             <i>Pteris keysseri</i>
                                             <i>Pteris khasiana</i>
                                             <i>Pteris kidoi</i>
                                             <i>Pteris kiuschiuensis</i>
                                             <i>Pteris kivuensis</i>
                                             <i>Pteris laciniata</i>
                                             <i>Pteris laeta</i>
                                             <i>Pteris laevis</i>
                                                   [Pteris subundulata]
                                             <i>Pteris lastii</i>
                                             <i>Pteris lechleri</i>
                                                   [Pteris sericea]
                                             <i>Pteris leptophylla</i>
                                                   [Pteris semidentata]
                                             <i>Pteris lidgatei</i>
                                             <i>Pteris ligulata</i>
                                             <i>Pteris linearis</i>
                                                   [Pteris nemoralis]
                                             <i>Pteris litoralis</i>
                                             <i>Pteris livida</i>
                                             <i>Pteris longifolia</i>
                                               <i>Pteris longifolia var. bahamensis</i>
                                             <i>Pteris longipes</i>
                                             <i>Pteris longipinna</i>
                                             <i>Pteris longipinnula</i>
                                             <i>Pteris lydgatei</i>
                                                   [Pteris lidgatii]
                                             <i>Pteris macgregorii</i>
                                             <i>Pteris macilenta</i>
                                                   [Pteris pendula]
                                             <i>Pteris macrophylla</i>
                                             <i>Pteris madagascarica</i>
                                             <i>Pteris marattiaefolia</i>
                                             <i>Pteris melanocaulon</i>
                                             <i>Pteris mertensioides</i>
                                               <i>Pteris mertensioides subsp. mertensioides</i>
                                                     [Pteris decussata]
                                             <i>Pteris micracantha</i>
                                             <i>Pteris microlepis</i>
                                             <i>Pteris mildbraedii</i>
                                             <i>Pteris mkomaziensis</i>
                                             <i>Pteris moluccana</i>
                                             <i>Pteris montis-wilhelminae</i>
                                             <i>Pteris mucronulata</i>
                                             <i>Pteris multifida</i>
                                             <i>Pteris muricata</i>
                                             <i>Pteris muricatopedata</i>
                                             <i>Pteris muricella</i>
                                             <i>Pteris mutilata</i>
                                             <i>Pteris natiensis</i>
                                             <i>Pteris navarrensis</i>
                                             <i>Pteris nervosa</i>
                                             <i>Pteris normalis</i>
                                                   [Pteris scabristipes]
                                             <i>Pteris novae-caledoniae</i>
                                             <i>Pteris oppositipinnata</i>
                                                   [Pteris asperula]
                                             <i>Pteris orizabae</i>
                                                   [Litobrochia setifera]
                                                   [Pteris apicalis]
                                             <i>Pteris oshimensis</i>
                                             <i>Pteris pachysora</i>
                                             <i>Pteris pacifica</i>
                                             <i>Pteris paleacea</i>
                                             <i>Pteris pallens</i>
                                                   [Ochropteris pallens]
                                             <i>Pteris palmata</i>
                                             <i>Pteris papuana</i>
                                                   [Pteris opaca]
                                             <i>Pteris parkeri</i>
                                                   [Pteris nipponica]
                                             <i>Pteris patens</i>
                                             <i>Pteris paucinervata</i>
                                             <i>Pteris pearcei</i>
                                             <i>Pteris pedata</i>
                                             <i>Pteris pedicellata</i>
                                             <i>Pteris pediformis</i>
                                             <i>Pteris pellucens</i>
                                                   [Pteris philippinensis]
                                             <i>Pteris pellucida</i>
                                             <i>Pteris platyzomopsis</i>
                                                   [Platyzoma microphyllum]
                                             <i>Pteris plumbea</i>
                                             <i>Pteris plumula</i>
                                             <i>Pteris podophylla</i>
                                                   [Pteris inflexa]
                                                   [Pteris trialata]
                                               <i>Pteris podophylla var. rufopubescens</i>
                                             <i>Pteris polita</i>
                                             <i>Pteris praestantissima</i>
                                             <i>Pteris praetermissa</i>
                                             <i>Pteris preusii</i>
                                             <i>Pteris preussii</i>
                                             <i>Pteris prolifera</i>
                                             <i>Pteris propinqua</i>
                                             <i>Pteris pseudolonchitis</i>
                                             <i>Pteris pseudopellucida</i>
                                             <i>Pteris pteridioides</i>
                                             <i>Pteris puberula</i>
                                             <i>Pteris pulchra</i>
                                                   [Pteris arborescens]
                                                   [Pteris mexicana]
                                             <i>Pteris pungens</i>
                                             <i>Pteris purdoniana</i>
                                             <i>Pteris quadriaurita</i>
                                             <i>Pteris ramosii</i>
                                             <i>Pteris rangiferina</i>
                                             <i>Pteris reducta</i>
                                             <i>Pteris repens</i>
                                                   [Afropteris repens]
                                             <i>Pteris roseolilacina</i>
                                             <i>Pteris ryukyuensis</i>
                                             <i>Pteris sagittifolia</i>
                                             <i>Pteris saxatilis</i>
                                             <i>Pteris scabra</i>
                                                   [Pteris mascarenensis]
                                             <i>Pteris scabripes</i>
                                             <i>Pteris scabririgens</i>
                                             <i>Pteris schlechteri</i>
                                             <i>Pteris semiadnata</i>
                                             <i>Pteris semipinnata</i>
                                                   [Pteris dimidiata]
                                             <i>Pteris serrulata</i>
                                             <i>Pteris setulosocostulata</i>
                                             <i>Pteris similis</i>
                                             <i>Pteris speciosa</i>
                                             <i>Pteris spinescens</i>
                                             <i>Pteris splendens</i>
                                             <i>Pteris squamipes</i>
                                             <i>Pteris stenophylla</i>
                                             <i>Pteris stridens</i>
                                             <i>Pteris subindivisa</i>
                                             <i>Pteris subquinata</i>
                                             <i>Pteris sulcata</i>
                                             <i>Pteris swartziana</i>
                                             <i>Pteris taiwanensis</i>
                                                   [Pteris wallichiana var. magna]
                                             <i>Pteris terminalis</i>
                                                   [Pteris inaequalis var. aequata]
                                                   [Pteris torricelliana]
                                             <i>Pteris togoensis</i>
                                                   [Pteris paucipinnata]
                                             <i>Pteris transparens</i>
                                                   [Pteris nuda]
                                             <i>Pteris tremula</i>
                                             <i>Pteris tricolor</i>
                                             <i>Pteris tripartita</i>
                                                   [Pteris marginata]
                                                   [Pteris milneana]
                                             <i>Pteris umbrosa</i>
                                             <i>Pteris usambarensis</i>
                                             <i>Pteris vaupelii</i>
                                             <i>Pteris venulosa</i>
                                             <i>Pteris venusta</i>
                                             <i>Pteris vermae</i>
                                                   [Pteris vittata subsp. vermae]
                                             <i>Pteris vieillardii</i>
                                             <i>Pteris vitiensis</i>
                                             <i>Pteris vittata</i>
                                                   [Pteris costata]
                                                   [Pycnodoria vittata]
                                               <i>Pteris vittata subsp. vittata</i>
                                             <i>Pteris wallichiana</i>
                                               <i>Pteris wallichiana var. samoensis</i>
                                             <i>Pteris warburgii</i>
                                             <i>Pteris websteri</i>
                                             <i>Pteris werneri</i>
                                             <i>Pteris whitfordii</i>
                                             <i>Pteris woodwardioides</i>
                                             <i>Pteris wulaiensis</i>
                                             <i>Pteris x delchampsii</i>
                                             <i>Pteris x hillebrandii</i>
                                             <i>Pteris zippelii</i>
                                     <i>Pteropsis</i>
                                     <i>Pterozonium</i>
                                             <i>Pterozonium brevifrons</i>
                                             <i>Pterozonium cyclophyllum</i>
                                             <i>Pterozonium cyclosorum</i>
                                             <i>Pterozonium elaphoglossoides</i>
                                             <i>Pterozonium lineare</i>
                                             <i>Pterozonium maguirei</i>
                                             <i>Pterozonium paraphysatum</i>
                                             <i>Pterozonium reniforme</i>
                                             <i>Pterozonium retroflexum</i>
                                             <i>Pterozonium scopulinum</i>
                                             <i>Pterozonium spectabile</i>
                                             <i>Pterozonium steyermarkii</i>
                                             <i>Pterozonium terrestre</i>
                                     <i>Pycnodoria</i>
                                     <i>Radiovittaria</i>
                                             <i>Radiovittaria gardneriana</i>
                                                   [Vittaria gardneriana]
                                             <i>Radiovittaria minima</i>
                                                   [Vittaria minima]
                                             <i>Radiovittaria moritziana</i>
                                             <i>Radiovittaria remota</i>
                                             <i>Radiovittaria ruiziana</i>
                                                   [Vittaria ruiziana]
                                             <i>Radiovittaria stipitata</i>
                                     <i>Ragatelus</i>
                                     <i>Saffordia</i>
                                     <i>Schizostege</i>
                                             <i>Schizostege lydgatei</i>
                                     <i>Scoliosorus</i>
                                             <i>Scoliosorus ensiformis</i>
                                                   [Antrophyum galeottii]
                                                   [Polytaenium ensiforme]
                                     <i>Syngramma</i>
                                             <i>Syngramma alismifolia</i>
                                             <i>Syngramma borneensis</i>
                                             <i>Syngramma cartilagidens</i>
                                             <i>Syngramma coriacea</i>
                                             <i>Syngramma grandis</i>
                                             <i>Syngramma magnifica</i>
                                             <i>Syngramma quinata</i>
                                                   [Syngramma schlechteri]
                                             <i>Syngramma vittiformis</i>
                                             <i>Syngramma wallichii</i>
                                     <i>Taenitis</i>
                                             <i>Taenitis blechnoides</i>
                                             <i>Taenitis brooksii</i>
                                             <i>Taenitis cordata</i>
                                             <i>Taenitis dimorpha</i>
                                             <i>Taenitis hookeri</i>
                                             <i>Taenitis intermedia</i>
                                             <i>Taenitis interrupta</i>
                                             <i>Taenitis lanceolata</i>
                                             <i>Taenitis obtusa</i>
                                             <i>Taenitis pinnata</i>
                                                   [Gymnogramma pinnata]
                                                   [Syngramma pinnata]
                                               <i>Taenitis pinnata var. brachysora</i>
                                               <i>Taenitis pinnata var. pinnata</i>
                                               <i>Taenitis pinnata var. polypodioides</i>
                                             <i>Taenitis requiniana</i>
                                     <i>Trachypteris</i>
                                             <i>Trachypteris induta</i>
                                             <i>Trachypteris pinnata</i>
                                     <i>Trismeria</i>
                                             <i>Trismeria trifoliata</i>
                                     <i>Tryonia</i>
                                             <i>Tryonia myriophylla</i>
                                                   [Gymnogramma glaziovii]
                                                   [Jamesonia glaziovii]
                                             <i>Tryonia schwackeana</i>
                                     <i>Vaginularia</i>
                                             <i>Vaginularia acrocarpa</i>
                                                   [Monogramma acrocarpa]
                                             <i>Vaginularia emarginata</i>
                                             <i>Vaginularia junghuhnii</i>
                                                   [Monogramma junghuhnii]
                                             <i>Vaginularia paradoxa</i>
                                                   [Monogramma paradoxa]
                                             <i>Vaginularia trichoidea</i>
                                     <i>Vittaria</i>
                                             <i>Vittaria appalachiana</i>
                                             <i>Vittaria bradeorum</i>
                                             <i>Vittaria costata</i>
                                             <i>Vittaria dimorpha</i>
                                             <i>Vittaria elongata</i>
                                                   [Haplopteris elongata]
                                                   [Oetosis elongata]
                                                   [Vittaria hildebrandtii]
                                                   [Vittaria sthuhlmannii]
                                             <i>Vittaria filipes</i>
                                             <i>Vittaria flavicosta</i>
                                             <i>Vittaria flexuosa</i>
                                             <i>Vittaria fudzinoi</i>
                                             <i>Vittaria graminifolia</i>
                                                   [Vittaria filifolia]
                                             <i>Vittaria incurvata</i>
                                             <i>Vittaria intramarginalis</i>
                                             <i>Vittaria isoetifolia</i>
                                                   [Oetosis isoetifolia]
                                                   [Vittaria gueinzii]
                                                   [Vittaria longidentata]
                                                   [Vittaria sarmetosa]
                                                   [Vittaria tenera]
                                             <i>Vittaria lineata</i>
                                                   [Vittaria costaricensis]
                                                   [Vittaria deppeana]
                                             <i>Vittaria longipes</i>
                                             <i>Vittaria merrillii</i>
                                             <i>Vittaria owariensis</i>
                                                   [Haplopteris owariensis]
                                             <i>Vittaria reekmansii</i>
                                             <i>Vittaria remota</i>
                                             <i>Vittaria rigida</i>
                                             <i>Vittaria schaeferi</i>
                                             <i>Vittaria stipitata</i>
                              Vittarioideae

Problematic Rooting (351641)
                                               <i>Paraceterach marantae subsp. marantae</i>
                                               <i>Paraceterach marantae subsp. subcordata</i>

Problematic Rooting (408796)
                                               <i>Vittaria guineensis var. camerooniana</i>
                                               <i>Vittaria guineensis var. guineensis</i>
                                                     [Pteris guineensis]
                                                     [Vittaria congoensis]
                                                     [Vittaria guineensis var. cancellata]
                                               <i>Vittaria guineensis var. orientalis</i>

Problematic Rooting (67433)
                                               <i>Pityrogramma tartarea var. jamesonii</i>
                                                     [Pityrogramma jamesonii]