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  Plantae
      Charophyta
        Streptophytina
            Equisetopsida
              Polypodiidae
                    Polypodiales
                            Pteridaceae
                                     Acrostichum
                                             Acrostichum alienum
                                             Acrostichum apodum
                                             Acrostichum appendiculatum
                                             Acrostichum aureum
                                                   [Acrostichum marginatum]
                                                   [Hemionitis arifolia]
                                             Acrostichum caudatum
                                             Acrostichum cervinum
                                             Acrostichum conforme
                                             Acrostichum crinitum
                                             Acrostichum crispatulum
                                             Acrostichum danaeifolium
                                                   [Acrostichum excelsum]
                                             Acrostichum feei
                                             Acrostichum flaccidum
                                             Acrostichum gorgoneum
                                             Acrostichum hybridum
                                             Acrostichum lanceolatum
                                             Acrostichum latifolium
                                             Acrostichum lomarioides
                                             Acrostichum nicotianifolium
                                             Acrostichum osmundaceum
                                             Acrostichum pallidum
                                             Acrostichum peltatum
                                             Acrostichum polyphyllum
                                             Acrostichum proliferum
                                             Acrostichum reticulatum
                                             Acrostichum scandens
                                             Acrostichum scolopendrifolium
                                             Acrostichum sorbifolium
                                             Acrostichum spatulatum
                                             Acrostichum speciosum
                                             Acrostichum squamosum
                                             Acrostichum squarrosum
                                             Acrostichum tricuspe
                                             Acrostichum variabile
                                             Acrostichum venustum
                                             Acrostichum vestitum
                                             Acrostichum virens
                                             Acrostichum viscosum
                                             Acrostichum wrightii
                                     Actiniopteris
                                             Actiniopteris radiata
                                     Adiantum
                                             Adiantum abscissum
                                                   [Adiantum brasiliense]
                                             Adiantum aethiopicum
                                                   [Adiantum aethiopicum f. assimile]
                                             Adiantum affine
                                             Adiantum aleuticum
                                                   [Adiantum pedatum ssp. aleuticum]
                                                   [Adiantum pedatum ssp. calderi]
                                                   [Adiantum pedatum ssp. subpumilum]
                                             Adiantum anceps
                                             Adiantum andicola
                                             Adiantum assimile
                                             Adiantum braunii
                                                   [Adiantum braunii var. cuneatum]
                                             Adiantum capillus
                                             Adiantum capillus-veneris
                                                   [Adiantum modestum]
                                               Adiantum capillus-veneris var. modestum
                                               Adiantum capillus-veneris var. protrusum
                                             Adiantum caudatum
                                                   [Adiantum flagelliferum]
                                             Adiantum chilense
                                               Adiantum chilense var. hirsutum
                                                     [Adiantum glanduliferum]
                                             Adiantum ciliatum
                                                   [Adiantum malesianum]
                                             Adiantum concinnum
                                             Adiantum confine
                                             Adiantum convolutum
                                             Adiantum crenatum
                                             Adiantum cristatum
                                             Adiantum cubense
                                             Adiantum cultratum
                                             Adiantum cuneatum
                                             Adiantum cunninghamii
                                             Adiantum cupreum
                                             Adiantum curvatum
                                             Adiantum decorum
                                             Adiantum deflectens
                                             Adiantum deltoideum
                                             Adiantum diaphanum
                                             Adiantum digitatum
                                             Adiantum dolosum
                                             Adiantum edgeworthii
                                             Adiantum emarginatum
                                             Adiantum excisum
                                             Adiantum flabellulatum
                                                   [Adiantum amoenum]
                                             Adiantum formosum
                                             Adiantum fragile
                                             Adiantum fructuosum
                                             Adiantum fulvum
                                             Adiantum galeottianum
                                             Adiantum glaucophyllum
                                             Adiantum gravesii
                                             Adiantum henslovianum
                                             Adiantum hispidulum
                                             Adiantum hosei
                                             Adiantum humile
                                                   [Adiantum killipii]
                                             Adiantum intermedium
                                             Adiantum jordanii
                                             Adiantum kaulfussii
                                             Adiantum latifolium
                                                   [Adiantum triangulatum]
                                             Adiantum lorentzii
                                             Adiantum lucidum
                                             Adiantum lunulatum
                                             Adiantum macrophyllum
                                             Adiantum marginatum
                                             Adiantum mariesii
                                             Adiantum melanoleucum
                                             Adiantum novae-caledoniae
                                             Adiantum obliquum
                                             Adiantum obtusum
                                             Adiantum patens
                                             Adiantum pectinatum
                                             Adiantum pedatum
                                                   Adiantum pedatum f. billingsae
                                               Adiantum pedatum var. aleuticum
                                               Adiantum pedatum var. pedatum
                                               Adiantum pedatum var. subpumilum
                                             Adiantum pedatum ssp. pseudocaudatum
                                             Adiantum peruvianum
                                             Adiantum petiolatum
                                             Adiantum philippense
                                             Adiantum poiretii
                                             Adiantum polyphyllum
                                             Adiantum pubescens
                                             Adiantum pulverulentum
                                             Adiantum pyramidale
                                             Adiantum raddianum
                                             Adiantum reniforme
                                               Adiantum reniforme var. asarifolium
                                                     [Adiantum asarifolium]
                                             Adiantum scalare
                                             Adiantum seemannii
                                             Adiantum soboliferum
                                                   [Adiantum alatum]
                                             Adiantum stenochlamys
                                                   [Adiantum opacum]
                                             Adiantum subcordatum
                                                   [Adiantum dilatatum]
                                             Adiantum sulphureum
                                             Adiantum tenerum
                                               Adiantum tenerum var. farleyense
                                                     [Adiantum farleyense]
                                             Adiantum tetraphyllum
                                             Adiantum thalictroides
                                             Adiantum tracyi
                                             Adiantum trapeziforme
                                                   [Adiantum rhomboideum]
                                             Adiantum tricholepis
                                             Adiantum venustum
                                             Adiantum villosum
                                             Adiantum viridimontanum
                                             Adiantum wilesianum
                                             Adiantum williamsii
                                             Adiantum wilsonii
                                                   [Adiantum wilsonii var. semicordatum]
                                     Aleuritopteris
                                             Aleuritopteris albomarginata
                                             Aleuritopteris argentea
                                               Aleuritopteris argentea var. obscura
                                                     [Aleuritopteris shensiensis]
                                             Aleuritopteris farinosa
                                                   [Cheilanthes farinosa]
                                             Aleuritopteris mexicana
                                                   [Cheilanthes mexicana]
                                     Anogramma
                                             Anogramma leptophylla
                                     Antrophyum
                                             Antrophyum callifolium
                                                   [Antrophyum alatum]
                                             Antrophyum coriaceum
                                             Antrophyum lanceolatum
                                             Antrophyum latifolium
                                             Antrophyum plantagineum
                                             Antrophyum reticulatum
                                     Argyrochosma
                                             Argyrochosma dealbata
                                                   [Cheilanthes dealbata]
                                                   [Notholaena dealbata]
                                                   [Pellaea dealbata]
                                             Argyrochosma delicatula
                                                   [Notholaena delicatula]
                                             Argyrochosma fendleri
                                                   [Cheilanthes cancellata]
                                                   [Notholaena fendleri]
                                                   [Pellaea fendleri]
                                             Argyrochosma incana
                                                   [Notholaena incana]
                                             Argyrochosma jonesii
                                                   [Cheilanthes jonesii]
                                                   [Notholaena jonesii]
                                                   [Pellaea jonesii]
                                             Argyrochosma limitanea
                                               Argyrochosma limitanea subsp. limitanea
                                               Argyrochosma limitanea ssp. limitanea
                                                     [Cheilanthes limitanea var. mexicana]
                                                     [Cheilanthes limitanea]
                                                     [Notholaena limitanea var. mexicana]
                                                     [Notholaena limitanea]
                                                     [Pellaea limitanea var. mexicana]
                                                     [Pellaea limitanea]
                                               Argyrochosma limitanea ssp. mexicana
                                                     [Notholaena limitanea ssp. mexicana]
                                             Argyrochosma lumholtzii
                                             Argyrochosma microphylla
                                                   [Cheilanthes parvifolia]
                                                   [Notholaena parvifolia]
                                                   [Pellaea microphylla]
                                             Argyrochosma nivea
                                                   [Notholaena nivea]
                                             Argyrochosma palmeri
                                                   [Notholaena palmeri]
                                             Argyrochosma tenera
                                                   [Notholaena tenera]
                                     Aspidotis
                                             Aspidotis californica
                                                   [Cheilanthes californica]
                                                   [Hypolepis californica]
                                             Aspidotis carlotta-halliae
                                                   [Cheilanthes carlotta-halliae]
                                             Aspidotis densa
                                                   [Cheilanthes siliquosa]
                                                   [Cryptogramma densa]
                                                   [Onychium densum]
                                                   [Pellaea densa]
                                     Astrolepis
                                             Astrolepis cochisensis
                                               Astrolepis cochisensis ssp. arizonica
                                               Astrolepis cochisensis ssp. chihuahuaensis
                                               Astrolepis cochisensis ssp. cochisensis
                                                     [Cheilanthes cochisensis]
                                                     [Notholaena cochisensis]
                                             Astrolepis integerrima
                                                   [Cheilanthes integerrima]
                                                   [Notholaena integerrima]
                                             Astrolepis sinuata
                                               Astrolepis sinuata ssp. mexicana
                                               Astrolepis sinuata ssp. sinuata
                                                     [Cheilanthes sinuata var. cochisensis]
                                                     [Cheilanthes sinuata]
                                                     [Notholaena sinuata var. cochisensis]
                                                     [Notholaena sinuata var. integerrima]
                                                     [Notholaena sinuata]
                                             Astrolepis windhamii
                                     Bommeria
                                             Bommeria ehrenbergiana
                                                   [Gymnogramma ehrenbergiana]
                                             Bommeria elegans
                                                   [Hemionitis elegans]
                                             Bommeria hispida
                                                   [Gymnogramma ehrenbergiana var. muralis]
                                                   [Gymnogramma hispida]
                                                   [Gymnopteris hispida]
                                             Bommeria pedata
                                     Ceratopteris
                                             Ceratopteris pteridoides
                                             Ceratopteris richardii
                                             Ceratopteris thalictroides
                                                   [Ceratopteris deltoidea]
                                                   [Ceratopteris siliquosa]
                                     Cheilanthes
                                             Cheilanthes aemula
                                             Cheilanthes alabamensis
                                                   [Pellaea alabamensis]
                                             Cheilanthes arizonica
                                             Cheilanthes bergiana
                                                   [Hypolepis bergiana]
                                             Cheilanthes bonariensis
                                                   [Notholaena aurea]
                                             Cheilanthes buchananii
                                                   [Notholaena buchananii]
                                             Cheilanthes capensis
                                                   [Adiantopsis capensis]
                                             Cheilanthes clevelandii
                                             Cheilanthes cooperae
                                             Cheilanthes covillei
                                             Cheilanthes depauperata
                                             Cheilanthes distans
                                             Cheilanthes eatonii
                                                   [Cheilanthes castanea]
                                             Cheilanthes feei
                                             Cheilanthes fendleri
                                             Cheilanthes fibrillosa
                                             Cheilanthes gracillima
                                               Cheilanthes gracillima var. aberrans
                                             Cheilanthes hirta
                                             Cheilanthes horridula
                                             Cheilanthes inaequalis
                                                   [Notholaena inaequalis]
                                             Cheilanthes intertexta
                                             Cheilanthes kaulfussii
                                             Cheilanthes lanosa
                                                   [Cheilanthes vestita]
                                             Cheilanthes lanuginosa
                                               Cheilanthes lanuginosa var. fibrillosa
                                             Cheilanthes lendigera
                                             Cheilanthes leucopoda
                                             Cheilanthes lindheimeri
                                             Cheilanthes microphylla
                                             Cheilanthes multifida
                                               Cheilanthes multifida subsp. multifida
                                                     [Cheilanthes bolusii]
                                             Cheilanthes newberryi
                                                   [Notholaena newberryi]
                                             Cheilanthes notholaenoides
                                             Cheilanthes nudiuscula
                                                   [Cheilanthes hirsuta]
                                                   [Notholaena sulcata]
                                             Cheilanthes parishii
                                             Cheilanthes parryi
                                                   [Notholaena parryi]
                                             Cheilanthes parviloba
                                                   [Cheilanthes hirta var. parviloba]
                                             Cheilanthes pringlei
                                             Cheilanthes pteridioides
                                                   [Cheilanthes odora]
                                             Cheilanthes tenuifolia
                                                   [Cheilanthes rupestris]
                                             Cheilanthes tomentosa
                                             Cheilanthes villosa
                                             Cheilanthes viscida
                                             Cheilanthes wootonii
                                             Cheilanthes wrightii
                                             Cheilanthes yavapensis
                              Cheilanthoideae
                                     Adiantopsis
                                             Adiantopsis chlorophylla
                                                   [Cheilanthes spectabilis]
                                             Adiantopsis paupercula
                                             Adiantopsis pedata
                                             Adiantopsis radiata
                                             Adiantopsis reesii
                                             Adiantopsis seemannii
                                                   [Cheilanthes seemannii]
                                     Calciphilopteris
                                             Calciphilopteris ludens
                                                   [Doryopteris ludens]
                                     Cheiloplecton
                                             Cheiloplecton rigidum
                                     Doryopteris
                                             Doryopteris decipiens
                                             Doryopteris kirkii
                                                   [Doryopteris concolor var. kirkii]
                                             Doryopteris nobilis
                                                   [Doryopteris patula var. latesinuata]
                                             Doryopteris palmata
                                             Doryopteris pedata
                                     Gaga
                                             Gaga chaerophylla
                                                   [Cheilanthes chaerophylla]
                                             Gaga cuneata
                                                   [Cheilanthes cuneata]
                                             Gaga decomposita
                                                   [Cheilanthes decomposita]
                                             Gaga hirsuta
                                                   [Cheilanthes crenulata]
                                                   [Cheilanthes pyramidalis]
                                                   [Cheilanthes rufescens]
                                             Gaga kaulfussii
                                                   [Cheilanthes viscosa]
                                             Gaga marginata
                                                   [Cheilanthes marginata]
                                     Lytoneuron
                                             Lytoneuron bradei
                                                   [Doryopteris bradei]
                                     Mildella
                                             Mildella fallax
                                                   [Mildella intramarginalis var. serratifolia]
                                             Mildella intramarginalis
                                                   [Cheilanthes intramarginalis]
                                     Oeosporangium
                                             Oeosporangium elegans
                                                   [Cheilanthes mysurensis]
                                     Paragymnopteris
                                             Paragymnopteris vestita
                                                   [Grammitis vestita]
                                     Cryptogramma
                                             Cryptogramma acrostichoides
                                                   [Allosorus acrostichoides]
                                                   [Cryptogramma crispa ssp. acrostichoides]
                                             Cryptogramma cascadensis
                                             Cryptogramma crispa
                                             Cryptogramma stelleri
                              Cryptogrammoideae
                                     Coniogramme
                                             Coniogramme fraxinea
                                             Coniogramme intermedia
                                             Coniogramme serrulata
                                                   [Grammitis caudata]
                                     Llavea
                                             Llavea cordifolia
                                     Gymnogramma
                                             Gymnogramma calomelanos
                                             Gymnogramma schizophylla
                                             Gymnogramma sulphurea
                                             Gymnogramma tomentosa
                                             Gymnogramma triangularis
                                     Gymnopteris
                                     Hemionitis
                                             Hemionitis palmata
                                             Hemionitis rufa
                                                   [Gymnogramma rufa]
                                     Litobrochia
                                             Litobrochia denticulata
                                     Myriopteris
                                             Myriopteris allosuroides
                                                   [Cheilanthes allosuroides]
                                             Myriopteris aurea
                                                   [Cheilanthes ferruginea]
                                                   [Notholaena bonariensis]
                                                   [Notholaena chiapensis]
                                             Myriopteris cucullans
                                                   [Cheilanthes micromera]
                                             Myriopteris lanosa
                                                   [Nephrodium lanosum]
                                             Myriopteris myriophylla
                                                   [Cheilanthes elegans]
                                                   [Cheilanthes myriophylla var. elegans]
                                                   [Cheilanthes myriophylla]
                                             Myriopteris peninsularis
                                               Myriopteris peninsularis subsp. insularis
                                                     [Cheilanthes peninsularis var. insularis]
                                               Myriopteris peninsularis subsp. peninsularis
                                                     [Cheilanthes peninsularis]
                                             Myriopteris scabra
                                                   [Cheilanthes aspera]
                                     Notholaena
                                             Notholaena affinis
                                                   [Notholaena angusta]
                                             Notholaena aliena
                                                   [Cheilanthes aliena]
                                             Notholaena aschenborniana
                                                   [Cheilanthes aschenborniana]
                                             Notholaena aurantiaca
                                             Notholaena brachypus
                                                   [Cheilanthes brachypus]
                                             Notholaena bryopoda
                                             Notholaena californica
                                               Notholaena californica ssp. californica
                                                     [Cheilanthes deserti]
                                                     [Notholaena californica ssp. nigrescens]
                                               Notholaena californica ssp. leucophylla
                                             Notholaena candida
                                             Notholaena copelandii
                                             Notholaena galeottii
                                                   [Notholaena arsenii]
                                                   [Notholaena hyalina]
                                             Notholaena grayi
                                               Notholaena grayi ssp. grayi
                                                     [Cheilanthes grayi]
                                               Notholaena grayi ssp. sonorensis
                                             Notholaena greggii
                                                   [Cheilanthes greggii]
                                                   [Notholaena pringlei]
                                             Notholaena hookeri
                                             Notholaena jaliscana
                                                   [Cheilanthes palmeri]
                                             Notholaena lemmonii
                                                   [Cheilanthes lemmonii]
                                             Notholaena leonina
                                             Notholaena nealleyi
                                                   [Cheilanthes nealleyi]
                                             Notholaena neglecta
                                                   [Cheilanthes neglecta]
                                             Notholaena ochracea
                                                   [Cheilanthes aurantiaca]
                                             Notholaena rigida
                                             Notholaena schaffneri
                                             Notholaena standleyi
                                                   [Cheilanthes hookeri]
                                                   [Cheilanthes standleyi]
                                             Notholaena trichomanoides
                                                   [Notholaena ferruginea]
                              Parkerioideae
                                     Pellaea
                                             Pellaea andromedifolia
                                               Pellaea andromedifolia var. pubescens
                                               Pellaea andromedifolia var. rubens
                                             Pellaea angulosa
                                             Pellaea atropurpurea
                                               Pellaea atropurpurea var. bushii
                                               Pellaea atropurpurea var. simplex
                                             Pellaea brachyptera
                                             Pellaea breweri
                                             Pellaea bridgesii
                                             Pellaea cordifolia
                                                   [Pellaea cardiomorpha]
                                                   [Pellaea cordata]
                                             Pellaea gastonyi
                                             Pellaea glabella
                                               Pellaea glabella subsp. glabella
                                               Pellaea glabella var. missouriensis
                                               Pellaea glabella var. nana
                                               Pellaea glabella var. occidentalis
                                               Pellaea glabella var. simplex
                                               Pellaea glabella ssp. glabella
                                               Pellaea glabella ssp. missouriensis
                                               Pellaea glabella ssp. occidentalis
                                                     [Pellaea occidentalis]
                                               Pellaea glabella ssp. simplex
                                                     [Pellaea occidentalis ssp. simplex]
                                                     [Pellaea suksdorfiana]
                                               Pellaea glabella var. glabella
                                             Pellaea glaciogena
                                             Pellaea gracilis
                                             Pellaea hastata
                                             Pellaea intermedia
                                             Pellaea lyngholmii
                                             Pellaea mucronata
                                               Pellaea mucronata subsp. mucronata
                                                     [Allosorus mucronatus]
                                               Pellaea mucronata var. californica
                                               Pellaea mucronata var. mucronata
                                               Pellaea mucronata ssp. californica
                                                     [Pellaea compacta]
                                               Pellaea mucronata ssp. mucronata
                                                     [Pellaea longimucronata]
                                             Pellaea ornithopus
                                             Pellaea ovata
                                             Pellaea rotundifolia
                                                   [Platyloma rotundifolia]
                                             Pellaea ternifolia
                                               Pellaea ternifolia var. wrightiana
                                               Pellaea ternifolia ssp. arizonica
                                               Pellaea ternifolia ssp. ternifolia
                                               Pellaea ternifolia ssp. villosa
                                             Pellaea tripinnata
                                             Pellaea truncata
                                             Pellaea viridis
                                             Pellaea wrightiana
                                     Pentagramma
                                             Pentagramma pallida
                                                   [Pityrogramma pallida]
                                             Pentagramma triangularis
                                               Pentagramma triangularis ssp. maxonii
                                               Pentagramma triangularis ssp. semipallida
                                                     [Pityrogramma semipallida]
                                               Pentagramma triangularis ssp. triangularis
                                                     [Pityrogramma triangularis var. maxonii]
                                                     [Pityrogramma triangularis var. pallida]
                                                     [Pityrogramma triangularis var. semipallida]
                                                     [Pityrogramma triangularis var. viridis]
                                                     [Pityrogramma triangularis var. viscosa]
                                                     [Pityrogramma triangularis]
                                               Pentagramma triangularis ssp. viscosa
                                                     [Pityrogramma viscosa]
                                     Pityrogramma
                                             Pityrogramma calomelanos
                                                   [Gymnogramma distans]
                                             Pityrogramma chrysoconia
                                             Pityrogramma chrysophylla
                                                   [Gymnogramma chrysophylla]
                                             Pityrogramma dealbata
                                                   [Gymnogramma dealbata]
                                             Pityrogramma ebenea
                                                   [Gymnogramma peruviana]
                                             Pityrogramma lehmannii
                                                   [Gymnogramma lehmannii]
                                             Pityrogramma tartarea
                                             Pityrogramma trifoliata
                                                   [Trismeria trifoliata]
                                     Polytaenium
                                             Polytaenium cajenense
                                                   [Antrophyum cayennense]
                                                   [Antrophyum subsessile]
                                             Polytaenium lineatum
                                                   [Antrophyum lineatum]
                              Pteridoideae
                                     Austrogramme
                                           [Aspleniopsis]
                                             Austrogramme decipiens
                                                   [Aspleniopsis decipiens]
                                     Cerosora
                                             Cerosora argentea
                                                   [Gymnogramma argentea]
                                                   [Pityrogramma argentea]
                                     Cosentinia
                                             Cosentinia vellea
                                               Cosentinia vellea subsp. vellea
                                                     [Notholaena lanuginosa]
                                     Gastoniella
                                             Gastoniella chaerophylla
                                                   [Anogramma chaerophylla]
                                                   [Gymnogramma chaerophylla]
                                     Jamesonia
                                             Jamesonia canescens
                                                   [Jamesonia imbricata var. canescens]
                                             Jamesonia flabellata
                                                   [Gymnogramma flabellata]
                                     Syngramma
                                           [Craspedodictyum]
                                     Tryonia
                                             Tryonia myriophylla
                                                   [Gymnogramma villosa]
                                     Pteris
                                           [Anopteris]
                                           [Ochropteris]
                                             Pteris aquilina
                                               Pteris aquilina var. caudata
                                               Pteris aquilina var. pseudocaudata
                                               Pteris aquilina var. esculenta
                                             Pteris argyraea
                                             Pteris atropurpurea
                                             Pteris bahamensis
                                             Pteris comans
                                             Pteris crenata
                                             Pteris cretica
                                               Pteris cretica var. albolineata
                                               Pteris cretica var. cretica
                                             Pteris delchampsii
                                             Pteris excelsa
                                             Pteris grandifolia
                                             Pteris hexagona
                                                   [Anopteris heterophylla]
                                                   [Anopteris hexagona]
                                             Pteris incisa
                                             Pteris irregularis
                                             Pteris longifolia
                                                   [Pycnodoria longifolia]
                                               Pteris longifolia var. bahamensis
                                             Pteris macilenta
                                             Pteris multifida
                                             Pteris plumula
                                             Pteris quadriaurita
                                             Pteris scabra
                                                   [Pteris arguta]
                                             Pteris serrulata
                                             Pteris tremula
                                             Pteris tripartita
                                             Pteris vittata
                                     Pycnodoria
                                     Scoliosorus
                                             Scoliosorus ensiformis
                                                   [Antrophyum ensiforme]
                                                   [Antrophyum galeottii]
                                     Taenitis
                                             Taenitis blechnoides
                                     Trismeria
                                     Vittaria
                                             Vittaria appalachiana
                                             Vittaria elongata
                                             Vittaria lineata
                                             Vittaria remota
                              Vittarioideae
                                     Ananthacorus
                                             Ananthacorus angustifolius
                                     Antrophyopsis
                                             Antrophyopsis gigantea
                                                   [Antrophyum giganteum]
                                     Hecistopteris
                                             Hecistopteris pumila
                                                   [Gymnogramma pumila]
                                     Vaginularia
                                             Vaginularia trichoidea
                                                   [Monogramma trichoidea]
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