| Thelypteris abbiattii C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris abbottiana (Maxon) Ching | Synonym |  | TRO |  | 
	
		| Thelypteris abdita Proctor | Unresolved |  | TRO |  | 
	
		| Thelypteris abortiva C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris abrupta (Desv.) Proctor | Accepted |  | TRO |  | 
	
		| Thelypteris acanthocarpa C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris achalensis (Hieron.) Abbiatti | Accepted |  | TRO |  | 
	
		| Thelypteris acrostichoides Nieuwl. | Unresolved |  | IPNI |  | 
	
		| Thelypteris aculeata A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris acuminata (Houtt.) C.V. Morton | Accepted |  | TRO |  | 
	
		| Thelypteris acuminata var. kuliangensis (Ching) K. Iwats. | Synonym |  | TRO |  | 
	
		| Thelypteris acunae C. Sánchez & Zavaro | Unresolved |  | TRO |  | 
	
		| Thelypteris adenophora C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris adenostegia C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris adscendens Ching | Synonym |  | TRO |  | 
	
		| Thelypteris aequatorialis (Copel.) C.F. Reed | Synonym |  | TRO |  | 
	
		| Thelypteris affinis C.V.Morton | Unresolved |  | IPNI |  | 
	
		| Thelypteris afra C.F. Reed | Unresolved |  | TRO |  | 
	
		| Thelypteris afzelii (C. Chr.) Tardieu | Synonym |  | TRO |  | 
	
		| Thelypteris alan-smithiana L.D. Gómez | Accepted |  | TRO |  | 
	
		| Thelypteris alata C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris alatella C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris albicaulis (Fée) A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris albidipilosa C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris albociliata (Copel.) C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris albosetosa C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris alfredii (Rosenst.) Ching | Synonym |  | TRO |  | 
	
		| Thelypteris altissima Voster | Accepted |  | TRO |  | 
	
		| Thelypteris altitudinis Ponce | Unresolved |  | IPNI |  | 
	
		| Thelypteris amambayensis Ponce | Accepted |  | TRO |  | 
	
		| Thelypteris amazonica Salino & R.S.Fern. | Unresolved |  | IPNI |  | 
	
		| Thelypteris amboinensis C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris amphioxypteris (Sodiro) A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris ancyriothrix (Rosenst.) A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris andicola A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris andina (C.V. Morton) C.V. Morton | Synonym |  | TRO |  | 
	
		| Thelypteris andreana (Sodiro) C.V. Morton | Accepted |  | TRO |  | 
	
		| Thelypteris aneitensis C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris angulariloba Ching | Accepted |  | TRO |  | 
	
		| Thelypteris angusta C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris angustifolia (Willd.) Proctor | Accepted |  | TRO |  | 
	
		| Thelypteris angustifrons (Miq.) Ching | Synonym |  | TRO |  | 
	
		| Thelypteris angustipes C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris angustipinnata C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris anjenabensis C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris anoptera C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris antillana Proctor | Unresolved |  | IPNI |  | 
	
		| Thelypteris aoristisora C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris appendiculata C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris appendiculoides Fraser-Jenk. | Unresolved |  | IPNI |  | 
	
		| Thelypteris appressa A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris aquatilis C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris aquatiloides C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris araucariensis Ponce | Unresolved |  | IPNI |  | 
	
		| Thelypteris arborea (Brause) A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris arborescens (Humb. & Bonpl. ex Willd.) C.V. Morton | Accepted |  | TRO |  | 
	
		| Thelypteris arbuscula (Willd.) K. Iwats. | Synonym |  | TRO |  | 
	
		| Thelypteris arcana (Maxon & C.V. Morton) C.V. Morton | Accepted |  | TRO |  | 
	
		| Thelypteris archboldiae C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris archboldii C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris arcuata C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris arenosa A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris arfakiana C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris argentina (Hieron.) Abbiatti | Accepted |  | TRO |  | 
	
		| Thelypteris arguta Moxley | Unresolved |  | TRO |  | 
	
		| Thelypteris arida (D. Don) C.V. Morton | Synonym |  | TRO |  | 
	
		| Thelypteris aristata C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris aristeguietae (Vareschi) A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris arrecta A.R. Sm. | Unresolved |  | TRO |  | 
	
		| Thelypteris arthrothrix C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris arthurii Fraser-Jenk. | Unresolved |  | IPNI |  | 
	
		| Thelypteris articulata Tagawa & K.Iwats. | Unresolved |  | IPNI |  | 
	
		| Thelypteris aspera (C. Presl) K. Iwats. | Synonym |  | TRO |  | 
	
		| Thelypteris aspidioides (Willd.) R.M. Tryon | Accepted |  | TRO |  | 
	
		| Thelypteris aspidioides var. subhastata (C. Chr.) C.F. Reed | Synonym |  | TRO |  | 
	
		| Thelypteris asplenioides (Sw.) Proctor | Accepted |  | TRO |  | 
	
		| Thelypteris assamica (Bedd.) C.F. Reed | Synonym |  | TRO |  | 
	
		| Thelypteris assurgens (Maxon) R.M. Tryon | Synonym |  | TRO |  | 
	
		| Thelypteris asterothrix (Fée) Proctor | Synonym |  | TRO |  | 
	
		| Thelypteris asterothrix var. bibrachiata (Jenman) Proctor | Synonym |  | TRO |  | 
	
		| Thelypteris asymetrica C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris atasripii C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris atrorubens (Mett. ex Kuhn) A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris atrospinosa C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris atrovirens (C. Chr.) C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris attenuata C.V.Morton | Unresolved |  | IPNI |  | 
	
		| Thelypteris augescens (Link) Munz & I.M. Johnst. | Accepted |  | TRO |  | 
	
		| Thelypteris augescens var. augescens | Synonym |  | TRO |  | 
	
		| Thelypteris augescens var. lindheimeri (A. Braun ex C. Chr.) R.P. St. John | Accepted |  | TRO |  | 
	
		| Thelypteris aureo-viridis (Rosenst.) C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris aureola A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris auriculata (J. Sm.) K. Iwats. | Synonym |  | TRO |  | 
	
		| Thelypteris auriculifera Ching | Unresolved |  | IPNI |  | 
	
		| Thelypteris aurita (Hook.) Ching | Accepted |  | TRO |  | 
	
		| Thelypteris austera C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris austrophilippina C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris aymarae A.R. Sm. & M. Kessler | Accepted |  | TRO |  | 
	
		| Thelypteris badia Ching | Unresolved |  | IPNI |  | 
	
		| Thelypteris bakeri (Harr.) C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris balansae C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris balbisii (Spreng.) Ching | Accepted |  | TRO |  | 
	
		| Thelypteris banaensis Tardieu & C.Chr. | Unresolved |  | IPNI |  | 
	
		| Thelypteris bangii (C. Chr.) R.M. Tryon | Synonym |  | TRO |  | 
	
		| Thelypteris baramensis Ching | Unresolved |  | IPNI |  | 
	
		| Thelypteris bartlettii C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris barvae A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris basiattenuata (Jenman) Proctor | Accepted |  | TRO |  | 
	
		| Thelypteris basisceletica C.S | Unresolved |  | IPNI |  | 
	
		| Thelypteris batacorum C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris batjanensis C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris beccariana C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris beckeriana F.B.Matos, A.R.Sm. & Labiak | Unresolved |  | IPNI |  | 
	
		| Thelypteris beddomei (Baker) Ching | Synonym |  | TRO |  | 
	
		| Thelypteris belensis C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris benguetensis (Copel.) C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris bergiana (Schltdl.) Ching | Synonym |  | TRO |  | 
	
		| Thelypteris berlinii A.R. Sm. | Unresolved |  | TRO |  | 
	
		| Thelypteris berroi C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris biaurita C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris bibrachiata (Jenman) Proctor | Accepted |  | TRO |  | 
	
		| Thelypteris bicolor C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris biformata (Rosenst.) R.M. Tryon | Accepted |  | TRO |  | 
	
		| Thelypteris binervata A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris biolleyi (Christ) Proctor | Accepted |  | TRO |  | 
	
		| Thelypteris bipinnata C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris blanda (Fée) C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris blastophora Reed | Unresolved |  | TRO |  | 
	
		| Thelypteris blepharis A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris blumei Panigrahi | Unresolved |  | TRO |  | 
	
		| Thelypteris boholensis C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris boliviensis (C.V. Morton) C.V. Morton | Synonym |  | TRO |  | 
	
		| Thelypteris bonapartii (Rosenst.) Alston | Accepted |  | TRO |  | 
	
		| Thelypteris boninensis K.Iwats. | Unresolved |  | IPNI |  | 
	
		| Thelypteris boottii Nieuwl. | Unresolved |  | TRO |  | 
	
		| Thelypteris boqueronensis (Hieron.) R.M. Tryon | Synonym |  | TRO |  | 
	
		| Thelypteris bordenii (Christ) C.F. Reed | Synonym |  | TRO |  | 
	
		| Thelypteris borneensis C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris boydiae K. Iwats. | Accepted |  | TRO |  | 
	
		| Thelypteris brachyodus (Kunze) Ching | Synonym |  | TRO |  | 
	
		| Thelypteris brachypoda (Baker) C.V. Morton | Accepted |  | TRO |  | 
	
		| Thelypteris brachypus (Sodiro) R.M. Tryon & A.F. Tryon | Accepted |  | TRO |  | 
	
		| Thelypteris brackenridgei C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris bradei (Christ) C.F. Reed | Synonym |  | TRO |  | 
	
		| Thelypteris brasiliensis C.V.Morton | Unresolved |  | IPNI |  | 
	
		| Thelypteris brassii C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris brausei (Hieron.) Alston | Accepted |  | TRO |  | 
	
		| Thelypteris brevisora (Rosenst.) Ponce | Synonym |  | TRO |  | 
	
		| Thelypteris brittonae Alain | Accepted |  | TRO |  | 
	
		| Thelypteris brooksii C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris browniana Ponce | Accepted |  | TRO |  | 
	
		| Thelypteris brunnea Ching | Unresolved |  | IPNI |  | 
	
		| Thelypteris brunnea var. glabrata (C.B. Clarke) Ching | Synonym |  | TRO |  | 
	
		| Thelypteris brunnea var. hirtirachis (C. Chr.) Ching | Synonym |  | TRO |  | 
	
		| Thelypteris brunnea var. pallida Ching | Synonym |  | TRO |  | 
	
		| Thelypteris brunnescens C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris buchtienii A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris bukoensis Ching | Unresolved |  | IPNI |  | 
	
		| Thelypteris bunnemeyeri C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris burkartii Abbiatti | Unresolved |  | IPNI |  | 
	
		| Thelypteris burksiorum J.E. Watkins & Farrar | Synonym |  | TRO |  | 
	
		| Thelypteris burmanica C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris cabrerae Abbiatti | Unresolved |  | IPNI |  | 
	
		| Thelypteris calcarata (Blume) Ching | Accepted |  | TRO |  | 
	
		| Thelypteris callensii C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris callosa K.Iwats. | Unresolved |  | IPNI |  | 
	
		| Thelypteris calva (Copel.) C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris calvata Ching | Accepted |  | TRO |  | 
	
		| Thelypteris calvescens (Ching) C.F. Reed | Synonym |  | TRO |  | 
	
		| Thelypteris calypso L.D. Gómez | Accepted |  | TRO |  | 
	
		| Thelypteris campii A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris cana (Baker) Ching | Synonym |  | TRO |  | 
	
		| Thelypteris canadasii (Sodiro) Alston | Accepted |  | TRO |  | 
	
		| Thelypteris canescens K.Iwats. | Unresolved |  | IPNI |  | 
	
		| Thelypteris canlaonensis C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris caribaea (Jenman) C.V. Morton | Synonym |  | TRO |  | 
	
		| Thelypteris carolinensis Fosberg | Unresolved |  | IPNI |  | 
	
		| Thelypteris castanea (Tagawa) Ching | Synonym |  | TRO |  | 
	
		| Thelypteris catamarcensis de la Sota | Synonym |  | TRO |  | 
	
		| Thelypteris cataractorum C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris caucaensis (Hieron.) Alston | Accepted |  | TRO |  | 
	
		| Thelypteris caudata (Ching) C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris caudiculata C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris caudipinna Ching | Accepted |  | TRO |  | 
	
		| Thelypteris cavitensis C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris celebica C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris cesatiana C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris chaerophylloides (Poir.) Proctor | Synonym |  | TRO |  | 
	
		| Thelypteris chamaeotaria C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris chandrae Fraser-Jenk. | Unresolved |  | TRO |  | 
	
		| Thelypteris chaparensis A.R. Sm. & M. Kessler | Accepted |  | TRO |  | 
	
		| Thelypteris chaseana Schelpe | Accepted |  | TRO |  | 
	
		| Thelypteris cheilanthoides (Kunze) Proctor | Accepted |  | TRO |  | 
	
		| Thelypteris cheilanthoides var. cheilanthoides | Synonym |  | TRO |  | 
	
		| Thelypteris cheilanthoides var. resinosofoetida (Hook.) Proctor | Synonym |  | TRO |  | 
	
		| Thelypteris chimboracensis A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris chinensis Ching | Synonym |  | TRO |  | 
	
		| Thelypteris chiriquiana A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris chlamydophora Ching | Unresolved |  | IPNI |  | 
	
		| Thelypteris chocoensis A.R. Sm. & Lellinger | Accepted |  | TRO |  | 
	
		| Thelypteris christensenii (Christ ex C. Chr.) C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris christii C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris chrysodioides (Fée) C.V. Morton | Accepted |  | TRO |  | 
	
		| Thelypteris chrysoloba Ching | Unresolved |  | IPNI |  | 
	
		| Thelypteris chunii Ching | Accepted |  | TRO |  | 
	
		| Thelypteris ciliata (Wall. ex Benth.) Ching | Accepted |  | TRO |  | 
	
		| Thelypteris cinerea (Sodiro) A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris clarkei C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris clemensiae C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris clintoniana (D.C. Eaton) House | Accepted |  | TRO |  | 
	
		| Thelypteris clivalis A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris clypeata (Maxon & C.V. Morton) K.U. Kramer | Accepted |  | TRO |  | 
	
		| Thelypteris clypeolutata (Desv.) Proctor | Synonym |  | TRO |  | 
	
		| Thelypteris coalescens C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris coarctata (Kunze) R.M. Tryon | Synonym |  | TRO |  | 
	
		| Thelypteris cocleana A.R. Sm. & Lellinger | Accepted |  | TRO |  | 
	
		| Thelypteris cocos A.R. Sm. & Lellinger | Accepted |  | TRO |  | 
	
		| Thelypteris columbiana (C. Chr.) C.V. Morton | Synonym |  | TRO |  | 
	
		| Thelypteris comosa (C.V. Morton) C.V. Morton | Accepted |  | TRO |  | 
	
		| Thelypteris compacta C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris comptula A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris concinna (Willd.) Ching | Accepted |  | TRO |  | 
	
		| Thelypteris concinna var. elongata (E. Fourn.) C.F. Reed | Synonym |  | TRO |  | 
	
		| Thelypteris conferta C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris confluens (Thunb.) C.V. Morton | Accepted |  | TRO |  | 
	
		| Thelypteris conformis (Sodiro) A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris confusa C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris connexa (Kuhn ex Baker) C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris consanguinea (Fée) Proctor | Accepted |  | TRO |  | 
	
		| Thelypteris consimilis Proctor | Unresolved |  | IPNI |  | 
	
		| Thelypteris consobrina (Maxon & C.V. Morton) R.M. Tryon | Accepted |  | TRO |  | 
	
		| Thelypteris conspersa (Schrad.) A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris contermina (Willd.) C.F. Reed | Synonym |  | TRO |  | 
	
		| Thelypteris conterminoides C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris contigua C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris cooleyi Proctor | Unresolved |  | IPNI |  | 
	
		| Thelypteris copelandii C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris corazonensis (Baker) A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris cordata (Fée) Proctor | Accepted |  | TRO |  | 
	
		| Thelypteris cordata var. imitata (C. Chr.) Proctor | Accepted |  | TRO |  | 
	
		| Thelypteris coriacea Ching | Unresolved |  | IPNI |  | 
	
		| Thelypteris cornuta (Maxon) Ching | Accepted |  | TRO |  | 
	
		| Thelypteris correllii A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris costaricensis A. Rojas | Unresolved |  | TRO |  | 
	
		| Thelypteris costata C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris costulisora C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris crassa C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris crassifolia (Blume) Ching | Synonym |  | TRO |  | 
	
		| Thelypteris crassifolia var. motleyana (Hook.) Ching | Synonym |  | TRO |  | 
	
		| Thelypteris crassipila Caluff & C.S | Unresolved |  | IPNI |  | 
	
		| Thelypteris crassiuscula (C. Chr. & Maxon) Lellinger | Accepted |  | TRO |  | 
	
		| Thelypteris crenata A.R. Sm. & Lellinger | Accepted |  | TRO |  | 
	
		| Thelypteris cretacea A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris crinipes (Hook.) K. Iwats. | Synonym |  | TRO |  | 
	
		| Thelypteris cristata Nieuwl. | Unresolved |  | TRO |  | 
	
		| Thelypteris croatii A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris cruciata (Willd.) Tardieu | Synonym |  | TRO |  | 
	
		| Thelypteris crypta (Underw. & Maxon) C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris ctenitoides A.R. Sm. | Unresolved |  | TRO |  | 
	
		| Thelypteris cumingiana (Kunze) C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris cuneata (C. Chr.) C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris curta (Christ) C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris cuspidata K.Iwats. | Unresolved |  | IPNI |  | 
	
		| Thelypteris cutiataensis Salino | Unresolved |  | IPNI |  | 
	
		| Thelypteris cyatheoides Fosberg | Accepted |  | TRO |  | 
	
		| Thelypteris cyclolepis Tagawa | Unresolved |  | IPNI |  | 
	
		| Thelypteris cylindrothrix (Rosenst.) K. Iwats. | Synonym |  | TRO |  | 
	
		| Thelypteris cyrtocaulos C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris cyrtomioides C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris cystopteroides (D.C. Eaton) Ching | Synonym |  | TRO |  | 
	
		| Thelypteris darwinii L.D. Gómez | Synonym |  | TRO |  | 
	
		| Thelypteris dassanayakei Fraser-Jenk. | Unresolved |  | IPNI |  | 
	
		| Thelypteris dasypoda C.V.Morton | Unresolved |  | IPNI |  | 
	
		| Thelypteris dayi B.K.Nayar & S.Kaur | Unresolved |  | IPNI |  | 
	
		| Thelypteris debilis C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris decadens C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris decipiens (Clarke) Ching | Synonym |  | TRO |  | 
	
		| Thelypteris decora (Domin) C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris decrescens Proctor | Unresolved |  | TRO |  | 
	
		| Thelypteris decurrentialata C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris decursive-pinnata (H.C. Hall) Ching | Accepted |  | TRO |  | 
	
		| Thelypteris decurtata (Kunze) de la Sota | Accepted |  | TRO |  | 
	
		| Thelypteris decurtata subsp. decurtata | Synonym |  | TRO |  | 
	
		| Thelypteris decurtata subsp. platense (Weath.) de la Sota | Accepted |  | TRO |  | 
	
		| Thelypteris decussata (L.) Proctor | Accepted |  | TRO |  | 
	
		| Thelypteris decussata var. brasiliensis (C. Chr.) A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris decussata var. decussata | Synonym |  | TRO |  | 
	
		| Thelypteris decussata var. velutina (Sodiro) A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris decussata f. velutina (Sodiro) C.F. Reed | Synonym |  | TRO |  | 
	
		| Thelypteris deflexa (C. Presl) R.M. Tryon | Accepted |  | TRO |  | 
	
		| Thelypteris degeneri C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris dejecta C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris delasotae A.R. Sm. & Lellinger | Accepted |  | TRO |  | 
	
		| Thelypteris delicatula (Fée) Proctor | Synonym |  | TRO |  | 
	
		| Thelypteris deltiptera C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris deltoidea (Sw.) Proctor | Accepted |  | TRO |  | 
	
		| Thelypteris demerarana (Baker) C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris demissa A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris densa (Maxon) R.M. Tryon | Synonym |  | TRO |  | 
	
		| Thelypteris densisora C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris densisora Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris × dentarida Fraser-Jenk. | Unresolved |  | TRO |  | 
	
		| Thelypteris dentata (Forssk.) E.P. St. John | Synonym |  | TRO |  | 
	
		| Thelypteris dentata var. violascens (Link) C.F. Reed | Synonym |  | TRO |  | 
	
		| Thelypteris denudata C.S | Unresolved |  | IPNI |  | 
	
		| Thelypteris depilata A.R. Sm. | Unresolved |  | TRO |  | 
	
		| Thelypteris devolvens C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris diaphana (Brause) Ching | Synonym |  | TRO |  | 
	
		| Thelypteris dicarpa C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris dichrotricha C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris dichrotrichoides C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris dicksonioides Ching | Unresolved |  | IPNI |  | 
	
		| Thelypteris dicranogramma C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris dictyoclinoides (Ching) C.M. Kuo | Synonym |  | TRO |  | 
	
		| Thelypteris didymochlaenoides (Ching) Ching | Accepted |  | TRO |  | 
	
		| Thelypteris didymosora C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris dilatata (Hoffm.) House | Accepted |  | TRO |  | 
	
		| Thelypteris diminuta C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris dimorpha C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris diplazioides (Moritz ex Mett.) Ching | Accepted |  | TRO |  | 
	
		| Thelypteris diplazoides Proctor | Unresolved |  | IPNI |  | 
	
		| Thelypteris dissimulans C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris distans C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris distincta C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris divergens C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris diversiloba C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris diversisora C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris diversivenosa (Alderw.) Ching | Accepted |  | TRO |  | 
	
		| Thelypteris dodsonii A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris doodioides C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris dryopteris (L.) Sloss. | Synonym |  | TRO |  | 
	
		| Thelypteris dryopteroidea C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris duclouxii (Christ) Ching | Accepted |  | TRO |  | 
	
		| Thelypteris dudleyi A.R. Sm. | Unresolved |  | TRO |  | 
	
		| Thelypteris dumetorum (Maxon) R.M. Tryon | Synonym |  | TRO |  | 
	
		| Thelypteris duplosetosa C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris dura C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris dutrae Ponce | Synonym |  | TRO |  | 
	
		| Thelypteris ecallosa C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris echinata C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris echinospora C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris edanyoi C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris eggersii (Hieron.) C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris ekmanii A.R. Sm. ex Lellinger | Unresolved |  | TRO |  | 
	
		| Thelypteris elata Schelpe | Unresolved |  | IPNI |  | 
	
		| Thelypteris elegantula (Sodiro) Alston | Accepted |  | TRO |  | 
	
		| Thelypteris elliptica C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris elmerorum C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris elwesii (Baker) Ching | Synonym |  | TRO |  | 
	
		| Thelypteris engelii (Hieron.) C.V. Morton | Synonym |  | TRO |  | 
	
		| Thelypteris engleriana (Brause) C.F. Reed | Synonym |  | TRO |  | 
	
		| Thelypteris enigmatica A.R. Sm. | Unresolved |  | TRO |  | 
	
		| Thelypteris ensifera (Tagawa) K. Iwats. | Synonym |  | TRO |  | 
	
		| Thelypteris ensiformis (C. Chr.) R.M. Tryon | Accepted |  | TRO |  | 
	
		| Thelypteris ensipinna Ching | Unresolved |  | IPNI |  | 
	
		| Thelypteris epaleata C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris equitans (Christ) C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris erecta C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris eriosora (Fée) Ponce | Accepted |  | TRO |  | 
	
		| Thelypteris erubescens (Wall. ex Hook.) Ching | Accepted |  | TRO |  | 
	
		| Thelypteris × erubesquirolica W.C.Shieh & J.L.Tsai | Unresolved |  | IPNI |  | 
	
		| Thelypteris erubesquirolica W.C. Shieh & J.L. Tsai | Accepted |  | TRO |  | 
	
		| Thelypteris erythrothrix A.R. Sm. | Unresolved |  | TRO |  | 
	
		| Thelypteris espinosae (Hicken) R. Rodr. | Synonym |  | TRO |  | 
	
		| Thelypteris esquirolii (Christ) Ching | Accepted |  | TRO |  | 
	
		| Thelypteris euchlora (Sodiro) C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris euchlora var. inaequans (C. Chr.) C.F. Reed | Synonym |  | TRO |  | 
	
		| Thelypteris eugracilis C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris euphlebia (Ching) C.F. Reed | Synonym |  | TRO |  | 
	
		| Thelypteris eurostotricha C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris euryphylla C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris euthythrix A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris evoluta (Clarke & Baker) Tagawa & K. Iwats. | Synonym |  | TRO |  | 
	
		| Thelypteris exigua C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris exindusiata W.H.Wagner | Unresolved |  | IPNI |  | 
	
		| Thelypteris exsculpta K.Iwats. | Unresolved |  | IPNI |  | 
	
		| Thelypteris extensa (Blume) C.V. Morton | Accepted |  | TRO |  | 
	
		| Thelypteris exuta A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris fadenii Fosberg & Sachet | Unresolved |  | TRO |  | 
	
		| Thelypteris falcata (Liebm.) R.M. Tryon | Accepted |  | TRO |  | 
	
		| Thelypteris falcatipinnula C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris falcatula C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris falciloba (Hook.) Ching | Synonym |  | TRO |  | 
	
		| Thelypteris farinosa C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris fasciculata (E. Fourn.) Ching | Synonym |  | TRO |  | 
	
		| Thelypteris fasciola A.R. Sm. & M. Kessler | Accepted |  | TRO |  | 
	
		| Thelypteris fatuhivensis Ching | Unresolved |  | IPNI |  | 
	
		| Thelypteris fayorum A.R. Sm. & M. Kessler | Accepted |  | TRO |  | 
	
		| Thelypteris feei Moxley | Synonym |  | TRO |  | 
	
		| Thelypteris fendleri (D.C. Eaton) C.F. Reed | Synonym |  | TRO |  | 
	
		| Thelypteris ferox K.Iwats. | Unresolved |  | IPNI |  | 
	
		| Thelypteris filix-mas Nieuwl. | Unresolved |  | TRO |  | 
	
		| Thelypteris finisterrae C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris firma (Baker ex Jenman) Proctor | Accepted |  | TRO |  | 
	
		| Thelypteris firmula K.Iwats. | Unresolved |  | IPNI |  | 
	
		| Thelypteris flaccida (Blume) Ching | Synonym |  | TRO |  | 
	
		| Thelypteris flavo-virens (Rosenst.) C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris flexilis (Christ) Ching | Accepted |  | TRO |  | 
	
		| Thelypteris fluminalis A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris forsteri C.V.Morton | Accepted |  | TRO |  | 
	
		| Thelypteris foxii C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris fragilis Alston | Unresolved |  | IPNI |  | 
	
		| Thelypteris fragrans Nieuwl. | Unresolved |  | TRO |  | 
	
		| Thelypteris francoana (E. Fourn.) C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris fraseri (Mett. ex Kuhn) A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris friesii Schelpe | Unresolved |  | IPNI |  | 
	
		| Thelypteris frigida (Christ) A.R. Sm. & Lellinger | Accepted |  | TRO |  | 
	
		| Thelypteris fukienensis (Ching) C.F. Reed | Synonym |  | TRO |  | 
	
		| Thelypteris fulgens Ching | Unresolved |  | IPNI |  | 
	
		| Thelypteris funckii (Mett.) Alston | Accepted |  | TRO |  | 
	
		| Thelypteris funesta (Kunze) Alston | Synonym |  | TRO |  | 
	
		| Thelypteris furfuracea A.R. Sm. | Unresolved |  | TRO |  | 
	
		| Thelypteris furva (C.V. Morton) R.M. Tryon | Accepted |  | TRO |  | 
	
		| Thelypteris galanderi (Hieron.) Abbiatti | Synonym |  | TRO |  | 
	
		| Thelypteris gamblei Fraser-Jenk. | Unresolved |  | IPNI |  | 
	
		| Thelypteris gardneri Panigrahi | Unresolved |  | IPNI |  | 
	
		| Thelypteris gardneriana (Baker) C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris gemmulifera (Hieron.) A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris germaniana (Fée) Proctor | Accepted |  | TRO |  | 
	
		| Thelypteris ghiesbreghtii (Hook.) C.V. Morton | Accepted |  | TRO |  | 
	
		| Thelypteris gigantea (Mett.) R.M. Tryon | Accepted |  | TRO |  | 
	
		| Thelypteris glabra Ching | Unresolved |  | IPNI |  | 
	
		| Thelypteris glabrata T | Synonym |  | TRO |  | 
	
		| Thelypteris glandafra Viane | Unresolved |  | IPNI |  | 
	
		| Thelypteris glandulifera C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris glanduligera (Kunze) Ching | Synonym |  | TRO |  | 
	
		| Thelypteris glanduligera var. elatior (D.C. Eaton) Sa. Kurata | Unresolved |  | TRO |  | 
	
		| Thelypteris glanduligera var. hyalostegia (Copel.) H. Itô | Unresolved |  | TRO |  | 
	
		| Thelypteris glandulosa (Desv.) Proctor | Accepted |  | TRO |  | 
	
		| Thelypteris glandulosa var. brachyodus (Kunze) A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris glandulosa var. glandulosa | Synonym |  | TRO |  | 
	
		| Thelypteris glandulosa-lanosa R.M.Tryon | Unresolved |  | IPNI |  | 
	
		| Thelypteris glandulosolanosa (C. Chr.) R.M. Tryon | Accepted |  | TRO |  | 
	
		| Thelypteris glaucescens Ching | Unresolved |  | IPNI |  | 
	
		| Thelypteris glaziovii C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris gleichenioides (Christ) Lellinger | Synonym |  | TRO |  | 
	
		| Thelypteris globulifera C.F.Reed | Accepted |  | TRO |  | 
	
		| Thelypteris glutinosa (C. Chr.) C.V. Morton | Accepted |  | TRO |  | 
	
		| Thelypteris goedenii (Rosenst.) C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris goggilodus Small | Unresolved |  | IPNI |  | 
	
		| Thelypteris × gogoii Fraser-Jenk. | Unresolved |  | IPNI |  | 
	
		| Thelypteris goldiana Nieuwl. | Unresolved |  | TRO |  | 
	
		| Thelypteris gomeziana A.R. Sm. & Lellinger | Accepted |  | TRO |  | 
	
		| Thelypteris gongylodes (Schkuhr) Kuntze ex Small | Synonym |  | TRO |  | 
	
		| Thelypteris gonophora (Weath.) A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris × gorkhalensis Fraser-Jenk. | Unresolved |  | TRO |  | 
	
		| Thelypteris gracilenta (Jenman) Proctor | Accepted |  | TRO |  | 
	
		| Thelypteris gracilescens (Blume) Ching | Synonym |  | TRO |  | 
	
		| Thelypteris gracilis (Heward) Proctor | Accepted |  | TRO |  | 
	
		| Thelypteris grammitoides (Christ) Ching | Accepted |  | TRO |  | 
	
		| Thelypteris grandis A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris grandis var. aequatorialis (C. Chr.) A.R. Sm. | Synonym |  | TRO |  | 
	
		| Thelypteris grandis var. grandis | Synonym |  | TRO |  | 
	
		| Thelypteris grandis var. kunzeana (Hook.) A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris grandis var. pallescens (C. Chr.) A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris grantii Ching | Unresolved |  | IPNI |  | 
	
		| Thelypteris granulosa C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris grayumii A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris gregaria C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris gretheri B.C.Stone | Unresolved |  | IPNI |  | 
	
		| Thelypteris griffithianus Panigrahi | Unresolved |  | IPNI |  | 
	
		| Thelypteris griffithii (Mett.) C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris griffithii var. wilfordii (Hook.) C.M. Kuo | Accepted |  | TRO |  | 
	
		| Thelypteris grisea (Baker) Ching | Accepted |  | TRO |  | 
	
		| Thelypteris grunowii C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris guadalupensis (Wikstr.) Proctor | Accepted |  | TRO |  | 
	
		| Thelypteris guamensis Fosberg & Sachet | Unresolved |  | IPNI |  | 
	
		| Thelypteris gueintziana Schelpe | Unresolved |  | IPNI |  | 
	
		| Thelypteris guentheri Ching | Unresolved |  | IPNI |  | 
	
		| Thelypteris guienziana (Mett.) Schelpe | Accepted |  | TRO |  | 
	
		| Thelypteris guineensis Alston | Unresolved |  | IPNI |  | 
	
		| Thelypteris gustavii C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris guyanensis (Fée) C.V. Morton | Synonym |  | TRO |  | 
	
		| Thelypteris gymnocarpa (Copel.) C.V. Morton | Accepted |  | TRO |  | 
	
		| Thelypteris gymnopoda C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris gymnopoda K.Iwats. & M.Kato | Unresolved |  | IPNI |  | 
	
		| Thelypteris gymnopteridifrons (Hayata) C.M. Kuo | Synonym |  | TRO |  | 
	
		| Thelypteris gymnosora Ponce | Unresolved |  | IPNI |  | 
	
		| Thelypteris haenkeana C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris halconensis C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris hallieri C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris hamifera C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris handroi C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris harcourtii (Domin) Ching | Synonym |  | TRO |  | 
	
		| Thelypteris harrisii Proctor | Unresolved |  | TRO |  | 
	
		| Thelypteris harrisonii C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris harveyi (Mett. ex Kuhn) Proctor | Synonym |  | TRO |  | 
	
		| Thelypteris hastata (Fée) Proctor | Accepted |  | TRO |  | 
	
		| Thelypteris hastatopinnata C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris hatchii A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris hatschbachii A.R.Sm. | Unresolved |  | IPNI |  | 
	
		| Thelypteris hattorii (H. Itô) Tagawa | Synonym |  | TRO |  | 
	
		| Thelypteris hawaiiensis C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris heimeri C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris heineri C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris henriquesii Tardieu | Unresolved |  | IPNI |  | 
	
		| Thelypteris herbacea Holttum | Unresolved |  | TRO |  | 
	
		| Thelypteris herzogii (Rosenst.) R.M. Tryon | Synonym |  | TRO |  | 
	
		| Thelypteris heterocarpa (Blume) C.V. Morton | Synonym |  | TRO |  | 
	
		| Thelypteris heteroclita (Desv.) Ching | Synonym |  | TRO |  | 
	
		| Thelypteris heterophlebia C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris heterophylla K.Iwats. | Unresolved |  | IPNI |  | 
	
		| Thelypteris heteroptera (Desv.) Tardieu | Synonym |  | TRO |  | 
	
		| Thelypteris hewittii C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris hexagonoptera (Michx.) Weath. | Synonym |  | TRO |  | 
	
		| Thelypteris hickenii C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris hieronymusii (C. Chr.) C.F. Reed | Synonym |  | TRO |  | 
	
		| Thelypteris hildae Proctor | Unresolved |  | TRO |  | 
	
		| Thelypteris hillii C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris hilsenbergii Panigrahi | Unresolved |  | IPNI |  | 
	
		| Thelypteris hilsenbergii Schelpe | Unresolved |  | IPNI |  | 
	
		| Thelypteris himalaica (Ching) C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris hirsutipes (C.B. Clarke) Ching | Accepted |  | TRO |  | 
	
		| Thelypteris hirtisora (C. Chr.) K. Iwats. | Synonym |  | TRO |  | 
	
		| Thelypteris hirtopilosa C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris hispida C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris hispidifolia C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris hispidula (Decne.) C.F. Reed | Unresolved |  | TRO |  | 
	
		| Thelypteris hispidula var. inconstans (C. Chr.) Proctor | Unresolved |  | TRO |  | 
	
		| Thelypteris hispidula var. versicolor (R.P. St. John) Lellinger | Unresolved |  | TRO |  | 
	
		| Thelypteris hokouensis (Ching) C.F. Reed | Synonym |  | TRO |  | 
	
		| Thelypteris holodictya K.U. Kramer | Accepted |  | TRO |  | 
	
		| Thelypteris hondurensis L.D. Gómez | Accepted |  | TRO |  | 
	
		| Thelypteris horridipes C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris hosei K.Iwats. | Unresolved |  | IPNI |  | 
	
		| Thelypteris hostmannii (Klotzsch) C.V. Morton | Synonym |  | TRO |  | 
	
		| Thelypteris hottensis A.R.Sm. | Unresolved |  | IPNI |  | 
	
		| Thelypteris houi (Ching) C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris hudsoniana C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris hunsteiniana C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris hutchisonii A.R. Sm. | Unresolved |  | TRO |  | 
	
		| Thelypteris hydrophila (Fée) Proctor | Accepted |  | TRO |  | 
	
		| Thelypteris iguapensis (C. Chr.) Salino | Accepted |  | TRO |  | 
	
		| Thelypteris illicita (Christ) C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris imbricata (Liebm.) C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris imitata Alain | Unresolved |  | IPNI |  | 
	
		| Thelypteris immersa (Blume) Ching | Synonym |  | TRO |  | 
	
		| Thelypteris imponens C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris impressa (Desv.) C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris inabonensis Proctor | Unresolved |  | TRO |  | 
	
		| Thelypteris inaequans (C. Chr.) Lellinger | Accepted |  | TRO |  | 
	
		| Thelypteris inaequilateralis A.R. Sm. & M. Kessler | Accepted |  | TRO |  | 
	
		| Thelypteris incerta C.F. Reed | Unresolved |  | TRO |  | 
	
		| Thelypteris × incesta W.H.Wagner | Unresolved |  | IPNI |  | 
	
		| Thelypteris incisa Alston | Unresolved |  | TRO |  | 
	
		| Thelypteris inclusa C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris inconspicua Ching | Unresolved |  | IPNI |  | 
	
		| Thelypteris indica (Alderw.) C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris indochinensis (Christ) Ching | Accepted |  | TRO |  | 
	
		| Thelypteris × inexspectata Fraser-Jenk. | Unresolved |  | TRO |  | 
	
		| Thelypteris insignis (Mett.) Ching | Accepted |  | TRO |  | 
	
		| Thelypteris insularis (K. Iwats.) K. Iwats. | Synonym |  | TRO |  | 
	
		| Thelypteris intermedia (Muhl. ex Willd.) House | Accepted |  | TRO |  | 
	
		| Thelypteris interrupta (Willd.) K. Iwats. | Synonym |  | TRO |  | 
	
		| Thelypteris invisa Proctor | Accepted |  | TRO |  | 
	
		| Thelypteris invisa var. aequatorialis (C. Chr.) C.V. Morton | Synonym |  | TRO |  | 
	
		| Thelypteris invisa var. kunzeana (Hook.) C.V. Morton | Synonym |  | TRO |  | 
	
		| Thelypteris invisa var. pallescens (C. Chr.) C.V. Morton | Synonym |  | TRO |  | 
	
		| Thelypteris irayensis C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris ireneae (Brade) Lellinger | Accepted |  | TRO |  | 
	
		| Thelypteris iridescens C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris jacobsii C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris × jaculodentata Fraser-Jenk. | Unresolved |  | TRO |  | 
	
		| Thelypteris jaculosa (Christ) Panigrahi | Synonym |  | TRO |  | 
	
		| Thelypteris jamesonii (Hook.) R.M. Tryon | Accepted |  | TRO |  | 
	
		| Thelypteris japonica (Baker) Ching | Synonym |  | TRO |  | 
	
		| Thelypteris japonica var. formosa Nakaike | Synonym |  | TRO |  | 
	
		| Thelypteris japonica var. glabrata Ching | Synonym |  | TRO |  | 
	
		| Thelypteris japonica var. musashiensis Hiyama | Synonym |  | TRO |  | 
	
		| Thelypteris japonica f. viridescens (Makino) H. Itô | Synonym |  | TRO |  | 
	
		| Thelypteris jarucoensis Maxon ex Caluff & C.S | Unresolved |  | IPNI |  | 
	
		| Thelypteris jerdonii C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris jimenezii (Maxon & C. Chr.) C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris juergensii C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris jujuyensis de la Sota | Accepted |  | TRO |  | 
	
		| Thelypteris juruensis (C. Chr.) R.M. Tryon & D.S. Conant | Accepted |  | TRO |  | 
	
		| Thelypteris × kashmiriana Fraser-Jenk. | Unresolved |  | TRO |  | 
	
		| Thelypteris keysseriana C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris khamptorum Holttum in Holttum & P.Chandra | Unresolved |  | IPNI |  | 
	
		| Thelypteris khasiensis Ching | Unresolved |  | TRO |  | 
	
		| Thelypteris killipii A.R. Sm. & Lellinger | Accepted |  | TRO |  | 
	
		| Thelypteris kingii C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris klossii (Ridl.) Ching | Synonym |  | TRO |  | 
	
		| Thelypteris knysnaensis N.C. Anthony & Schelpe | Accepted |  | TRO |  | 
	
		| Thelypteris kotoensis (Hayata) K. Iwats. | Synonym |  | TRO |  | 
	
		| Thelypteris krayanensis K.Iwats. & M.Kato | Unresolved |  | IPNI |  | 
	
		| Thelypteris × kumaunica Fraser-Jenk. | Unresolved |  | IPNI |  | 
	
		| Thelypteris kunthii (Desv.) C.V. Morton | Accepted |  | TRO |  | 
	
		| Thelypteris kunzeana Ching | Unresolved |  | IPNI |  | 
	
		| Thelypteris kunzei (Fée) C.F. Reed | Synonym |  | TRO |  | 
	
		| Thelypteris kurzii Fraser-Jenk. | Unresolved |  | IPNI |  | 
	
		| Thelypteris kusaiana C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris kusukusensis (Hayata) C.M. Kuo | Accepted |  | TRO |  | 
	
		| Thelypteris laete-strigosa K.Iwats. in H.Hara | Unresolved |  | IPNI |  | 
	
		| Thelypteris laevigata (Mett. ex Kuhn) R.M. Tryon | Accepted |  | TRO |  | 
	
		| Thelypteris laevis C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris lakhimpurensis (Rosenst.) K. Iwats. | Synonym |  | TRO |  | 
	
		| Thelypteris lancea A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris lanceola C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris lanipes (C. Chr.) Alston | Synonym |  | TRO |  | 
	
		| Thelypteris lanosa (C. Chr.) A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris larutensis Tagawa & K.Iwats. | Unresolved |  | IPNI |  | 
	
		| Thelypteris latebrosa C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris laterepens R.Stewart in Nasir & Ali | Unresolved |  | IPNI |  | 
	
		| Thelypteris latifolia C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris latiloba Ching | Synonym |  | TRO |  | 
	
		| Thelypteris latipinna (Benth.) K. Iwats. | Synonym |  | TRO |  | 
	
		| Thelypteris lauterbachii (Brause) C.F. Reed | Synonym |  | TRO |  | 
	
		| Thelypteris laxa (Franch. & Sav.) Ching | Synonym |  | TRO |  | 
	
		| Thelypteris lebeufii Panigrahi | Unresolved |  | IPNI |  | 
	
		| Thelypteris leoniae A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris leonina Maxon ex Caluff & C.S | Unresolved |  | IPNI |  | 
	
		| Thelypteris lepidopoda (C. Chr. & Tardieu) C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris lepidula (Hieron.) Alston | Accepted |  | TRO |  | 
	
		| Thelypteris leprieurii (Hook.) R.M. Tryon | Accepted |  | TRO |  | 
	
		| Thelypteris leprieurii var. costalis (Baker) A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris leprieurii var. incana (C. Chr.) A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris leprieurii var. leprieurii | Synonym |  | TRO |  | 
	
		| Thelypteris leptocladia (Fée) Proctor | Accepted |  | TRO |  | 
	
		| Thelypteris leptogrammoides C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris leucadenia (Copel.) C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris leucolepis (C. Presl) Ching | Synonym |  | TRO |  | 
	
		| Thelypteris leuconeuron Schelpe | Unresolved |  | IPNI |  | 
	
		| Thelypteris leucophlebia (Christ) C.F. Reed | Synonym |  | TRO |  | 
	
		| Thelypteris leucothrix (C. Chr.) R.M. Tryon | Synonym |  | TRO |  | 
	
		| Thelypteris leveillei (Christ) C.M. Kuo | Accepted |  | TRO |  | 
	
		| Thelypteris levingei (C.B. Clarke) Ching | Accepted |  | TRO |  | 
	
		| Thelypteris levyi (E. Fourn.) C.V. Morton | Accepted |  | TRO |  | 
	
		| Thelypteris ligulata Ching | Unresolved |  | IPNI |  | 
	
		| Thelypteris limaensis (Copel.) C.F. Reed | Synonym |  | TRO |  | 
	
		| Thelypteris limbata (Sw.) Proctor | Synonym |  | TRO |  | 
	
		| Thelypteris limbosperma (All.) H.P. Fuchs | Accepted |  | TRO |  | 
	
		| Thelypteris × lindheimeri Wherry | Unresolved |  | IPNI |  | 
	
		| Thelypteris × lindheimeri C.Chr. | Unresolved |  | IPNI |  | 
	
		| Thelypteris lindigii Alston | Unresolved |  | IPNI |  | 
	
		| Thelypteris lindmanii (C. Chr.) C.F. Reed | Synonym |  | TRO |  | 
	
		| Thelypteris lineata K.Iwats. | Unresolved |  | IPNI |  | 
	
		| Thelypteris lingulata (C. Chr.) C.V. Morton | Accepted |  | TRO |  | 
	
		| Thelypteris × linii Fraser-Jenk. | Unresolved |  | IPNI |  | 
	
		| Thelypteris linkiana (C. Presl) R.M. Tryon | Accepted |  | TRO |  | 
	
		| Thelypteris linnaeana C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris lithophylla C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris littoralis Salino | Unresolved |  | IPNI |  | 
	
		| Thelypteris liukiuensis (Christ) K. Iwats. | Synonym |  | TRO |  | 
	
		| Thelypteris lobangensis C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris lobata C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris loheriana C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris lomatosora (Copel.) C.F. Reed | Synonym |  | TRO |  | 
	
		| Thelypteris lonchodes (D.C. Eaton) Ching | Synonym |  | TRO |  | 
	
		| Thelypteris longbawanensis K.Iwats. & M.Kato | Unresolved |  | IPNI |  | 
	
		| Thelypteris longicaulis (Baker) C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris longicuspis (Baker) Schelpe | Synonym |  | TRO |  | 
	
		| Thelypteris longifolia (Desv.) R.M. Tryon | Accepted |  | TRO |  | 
	
		| Thelypteris longifolia f. glandulosa (Maxon & C.V. Morton) C.V. Morton | Synonym |  | TRO |  | 
	
		| Thelypteris longipes (Blume) C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris longipetiolata (K. Iwats.) K. Iwats. | Synonym |  | TRO |  | 
	
		| Thelypteris longipilosa (Sodiro) C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris longisora A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris longissima C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris loreae A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris lorentzii (Hieron.) Abbiatti | Synonym |  | TRO |  | 
	
		| Thelypteris loretensis A.R. Sm. | Unresolved |  | TRO |  | 
	
		| Thelypteris loyalii Fraser-Jenk. | Unresolved |  | IPNI |  | 
	
		| Thelypteris lucida C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris lugubriformis (Rosenst.) R.M. Tryon | Accepted |  | TRO |  | 
	
		| Thelypteris lugubris (Mett.) R.M. Tryon & A.F. Tryon | Accepted |  | TRO |  | 
	
		| Thelypteris lumbricoides A.R. Sm. & M. Kessler | Accepted |  | TRO |  | 
	
		| Thelypteris lunaniana (Heward) Proctor | Accepted |  | TRO |  | 
	
		| Thelypteris lurida (Jenman ex Underw. & Maxon) Proctor | Synonym |  | TRO |  | 
	
		| Thelypteris lurida f. leucochaetis (Sloss.) Proctor | Unresolved |  | TRO |  | 
	
		| Thelypteris luzonica C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris macbridei (C. Chr. & Maxon) R.M. Tryon | Synonym |  | TRO |  | 
	
		| Thelypteris macgregorii Ching | Unresolved |  | IPNI |  | 
	
		| Thelypteris macilenta E.P. St. John | Synonym |  | TRO |  | 
	
		| Thelypteris macra A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris macradenia (Sodiro) C.V. Morton | Synonym |  | TRO |  | 
	
		| Thelypteris macrophylla (Kunze) C.V. Morton | Accepted |  | TRO |  | 
	
		| Thelypteris macroptera C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris macropus C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris macrorhizoma E.P. St. John | Synonym |  | TRO |  | 
	
		| Thelypteris macrotis (Hook.) R.M. Tryon | Synonym |  | TRO |  | 
	
		| Thelypteris madagascariensis (Fée) Schelpe | Synonym |  | TRO |  | 
	
		| Thelypteris madidiensis A.R. Sm. & M. Kessler | Accepted |  | TRO |  | 
	
		| Thelypteris maemonensis B.C.Stone | Unresolved |  | IPNI |  | 
	
		| Thelypteris magna C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris magnifica C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris malabariensis Panigrahi | Unresolved |  | IPNI |  | 
	
		| Thelypteris malangae (C. Chr.) C.V. Morton | Accepted |  | TRO |  | 
	
		| Thelypteris malangae var. sitiorum (Jenman) Proctor | Accepted |  | TRO |  | 
	
		| Thelypteris malayensis C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris malodora C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris mapiriensis (Rosenst.) Alston | Synonym |  | TRO |  | 
	
		| Thelypteris margaretae Ching | Unresolved |  | IPNI |  | 
	
		| Thelypteris marginalis Nieuwl. | Unresolved |  | TRO |  | 
	
		| Thelypteris marquesensis Lorence & K.R.Wood | Unresolved |  | IPNI |  | 
	
		| Thelypteris martinezii A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris mascarensis C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris matutumensis C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris mauensis C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris mauritiana C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris maxima K.Iwats. & M.Kato | Unresolved |  | IPNI |  | 
	
		| Thelypteris maxoniana A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris meeboldii C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris megacuspis C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris megalocarpa (Alderw.) Ching | Accepted |  | TRO |  | 
	
		| Thelypteris megalodus (Schkuhr) Proctor | Synonym |  | TRO |  | 
	
		| Thelypteris megaphylla K.Iwats. | Unresolved |  | IPNI |  | 
	
		| Thelypteris megaphylloides C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris melanochlaena (C. Chr.) C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris melanophlebia C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris membranacea (Mett.) R.M. Tryon | Accepted |  | TRO |  | 
	
		| Thelypteris membranifera C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris menisciicarpa K.Iwats. | Unresolved |  | IPNI |  | 
	
		| Thelypteris meniscioides (Liebm.) C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris mercurii (A. Braun ex Hieron.) C.F. Reed | Synonym |  | TRO |  | 
	
		| Thelypteris merrillii C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris mertensioides (C. Chr.) C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris mesocarpa C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris metcalfei C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris metteniana Ching | Accepted |  | TRO |  | 
	
		| Thelypteris mettenii Abbiatti | Unresolved |  | IPNI |  | 
	
		| Thelypteris mexiae (Copel. ex C. Chr.) Ching | Accepted |  | TRO |  | 
	
		| Thelypteris micans C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris microauriculata K.Iwats. & M.Kato | Unresolved |  | IPNI |  | 
	
		| Thelypteris microbasis Tardieu | Unresolved |  | TRO |  | 
	
		| Thelypteris microcarpa (Alderw.) Ching | Accepted |  | TRO |  | 
	
		| Thelypteris microloncha C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris microsora C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris micula A.R. Sm. | Unresolved |  | TRO |  | 
	
		| Thelypteris millei (C. Chr.) C.F. Reed | Synonym |  | TRO |  | 
	
		| Thelypteris mindanaensis (Christ) C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris minensis Abbiatti | Unresolved |  | IPNI |  | 
	
		| Thelypteris minima A.R. Sm. & M. Kessler | Accepted |  | TRO |  | 
	
		| Thelypteris minor (C. Chr.) A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris minuscula C.V.Morton | Unresolved |  | IPNI |  | 
	
		| Thelypteris minutissima Caluff & C.S | Unresolved |  | IPNI |  | 
	
		| Thelypteris minutula C.V. Morton | Accepted |  | TRO |  | 
	
		| Thelypteris mixta (Rosenst.) C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris miyagii Nakato, Sahashi & M.Kato | Unresolved |  | IPNI |  | 
	
		| Thelypteris mollicella Ching | Unresolved |  | IPNI |  | 
	
		| Thelypteris mollicula (Kunze ex Link) Ching | Synonym |  | TRO |  | 
	
		| Thelypteris mollis (Mett.) R.M. Tryon | Accepted |  | TRO |  | 
	
		| Thelypteris mollissima Thapa | Unresolved |  | IPNI |  | 
	
		| Thelypteris molliuscula (Kuhn) K. Iwats. | Synonym |  | TRO |  | 
	
		| Thelypteris mombachensis L.D. Gómez | Accepted |  | TRO |  | 
	
		| Thelypteris moniliformis K.Iwats. | Unresolved |  | IPNI |  | 
	
		| Thelypteris monosora (C. Presl) Salino | Accepted |  | TRO |  | 
	
		| Thelypteris montana Salino | Unresolved |  | IPNI |  | 
	
		| Thelypteris morobensis C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris mortonii A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris mosenii (C. Chr.) C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris motleyana Holttum | Unresolved |  | IPNI |  | 
	
		| Thelypteris multiauriculata C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris multiformis (C. Chr.) C.F. Reed | Synonym |  | TRO |  | 
	
		| Thelypteris multifrons (C. Chr.) Ching | Synonym |  | TRO |  | 
	
		| Thelypteris multigemmifera Salino | Unresolved |  | IPNI |  | 
	
		| Thelypteris multijugis C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris multilineata (Wall. ex Hook.) C.V. Morton | Accepted |  | TRO |  | 
	
		| Thelypteris multiseta (Baker) Ching | Synonym |  | TRO |  | 
	
		| Thelypteris multisora (C. Chr.) C.F. Reed | Synonym |  | TRO |  | 
	
		| Thelypteris munchii A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris munda Ching | Unresolved |  | IPNI |  | 
	
		| Thelypteris muricata C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris musashiensis Nakato | Unresolved |  | TRO |  | 
	
		| Thelypteris muscicola Proctor | Unresolved |  | IPNI |  | 
	
		| Thelypteris mutabilis C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris muzensis (Hieron.) Alston | Accepted |  | TRO |  | 
	
		| Thelypteris myriosora C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris namaphila Proctor | Unresolved |  | TRO |  | 
	
		| Thelypteris namburensis C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris nana A. Rojas | Unresolved |  | TRO |  | 
	
		| Thelypteris × nareshii Fraser-Jenk. | Unresolved |  | IPNI |  | 
	
		| Thelypteris navarrensis (Christ) Proctor | Synonym |  | TRO |  | 
	
		| Thelypteris neglecta Ching | Unresolved |  | IPNI |  | 
	
		| Thelypteris negligens (Jenman) Proctor | Accepted |  | TRO |  | 
	
		| Thelypteris nemoralis Ching | Accepted |  | TRO |  | 
	
		| Thelypteris neoauriculata (Ching) Ching | Accepted |  | TRO |  | 
	
		| Thelypteris nepalensis Fraser-Jenk. | Unresolved |  | TRO |  | 
	
		| Thelypteris nephelium A.R. Sm. & M. Kessler | Accepted |  | TRO |  | 
	
		| Thelypteris nephrodioides (Klotzsch) Proctor | Accepted |  | TRO |  | 
	
		| Thelypteris nephrolepioides C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris nervosa (Klotzsch) R.M. Tryon | Synonym |  | TRO |  | 
	
		| Thelypteris nesiotica (Maxon & C.V. Morton) C.V. Morton | Accepted |  | TRO |  | 
	
		| Thelypteris nevadensis (Baker) Clute ex C.V. Morton | Accepted |  | TRO |  | 
	
		| Thelypteris nicaraguensis (E. Fourn.) C.V. Morton | Accepted |  | TRO |  | 
	
		| Thelypteris nigrescentia (Jenman) C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris nimbata Proctor | Unresolved |  | IPNI |  | 
	
		| Thelypteris nipponica (Franch. & Sav.) Ching | Synonym |  | TRO |  | 
	
		| Thelypteris nipponica var. borealis (Hara) Hara | Synonym |  | TRO |  | 
	
		| Thelypteris nitens (Desv.) R.M. Tryon | Accepted |  | TRO |  | 
	
		| Thelypteris nitida K.Iwats. & M.Kato | Unresolved |  | IPNI |  | 
	
		| Thelypteris nitidula C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris nockiana (Jenman) Proctor | Synonym |  | TRO |  | 
	
		| Thelypteris normalis (C. Chr.) Moxley | Synonym |  | TRO |  | 
	
		| Thelypteris normalis var. harperi (C. Chr.) Wherry | Unresolved |  | TRO |  | 
	
		| Thelypteris notabilis Ching | Unresolved |  | IPNI |  | 
	
		| Thelypteris novaeana (Brade) Ponce | Accepted |  | TRO |  | 
	
		| Thelypteris novaehiberniae Holttum | Unresolved |  | IPNI |  | 
	
		| Thelypteris noveboracensis (L.) Nieuwl. | Accepted |  | TRO |  | 
	
		| Thelypteris novoguineensis C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris nubicola de la Sota | Accepted |  | TRO |  | 
	
		| Thelypteris nubigena A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris nudata (Roxb.) C.V. Morton | Accepted |  | TRO |  | 
	
		| Thelypteris nuna Ching | Unresolved |  | IPNI |  | 
	
		| Thelypteris nymphalis (G. Forst.) C.F. Reed | Synonym |  | TRO |  | 
	
		| Thelypteris oaxacana A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris obliquata Ching | Unresolved |  | IPNI |  | 
	
		| Thelypteris obliterata (Sw.) Proctor | Accepted |  | TRO |  | 
	
		| Thelypteris oblonga C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris obstructa C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris obtusata Ching | Unresolved |  | IPNI |  | 
	
		| Thelypteris obtusifolia C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris obtusiloba Fraser-Jenk. | Unresolved |  | IPNI |  | 
	
		| Thelypteris occulta C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris ochropteroides (Baker) Proctor | Synonym |  | TRO |  | 
	
		| Thelypteris ochthodes (Kunze) Ching | Synonym |  | TRO |  | 
	
		| Thelypteris odontosora Ching | Unresolved |  | IPNI |  | 
	
		| Thelypteris ogasawarensis (Nakai) H. Itô ex Honda | Synonym |  | TRO |  | 
	
		| Thelypteris oligocarpa (Humb. & Bonpl. ex Willd.) Ching | Accepted |  | TRO |  | 
	
		| Thelypteris oligocarpa var. crassistipitata (Hieron.) C.F. Reed | Synonym |  | TRO |  | 
	
		| Thelypteris oligodictya C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris oligolepia (Alderw.) Ching | Synonym |  | TRO |  | 
	
		| Thelypteris oligophlebia Ching | Accepted |  | TRO |  | 
	
		| Thelypteris oligophlebia var. elegans (Koidz.) Ching | Synonym |  | TRO |  | 
	
		| Thelypteris oligophlebia var. lasiocarpa (Hayata) H. Itô | Synonym |  | TRO |  | 
	
		| Thelypteris oligophylla Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris oligophylla Proctor | Unresolved |  | IPNI |  | 
	
		| Thelypteris omeiensis (Baker) Ching | Accepted |  | TRO |  | 
	
		| Thelypteris omeigensis (Ching) C.F. Reed | Synonym |  | TRO |  | 
	
		| Thelypteris oosora C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris opaca C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris ophiorhizoma A.R. Sm. & Lellinger | Accepted |  | TRO |  | 
	
		| Thelypteris ophiura C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris opposita (Vahl) Ching | Accepted |  | TRO |  | 
	
		| Thelypteris opposita var. rivulorum (Raddi) C.V. Morton | Synonym |  | TRO |  | 
	
		| Thelypteris oppositifolia C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris oppositiformis (C. Chr.) Ching | Synonym |  | TRO |  | 
	
		| Thelypteris oppositipinna (Alderw.) Ching | Synonym |  | TRO |  | 
	
		| Thelypteris opulenta (Kaulf.) Fosberg | Synonym |  | TRO |  | 
	
		| Thelypteris orbicularis (C. Chr.) C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris oregana (C. Chr.) H. St. John | Accepted |  | TRO |  | 
	
		| Thelypteris oreopteris Sloss. | Synonym |  | TRO |  | 
	
		| Thelypteris organensis Ching | Unresolved |  | IPNI |  | 
	
		| Thelypteris ornata (J. Sm.) Ching | Accepted |  | TRO |  | 
	
		| Thelypteris ornatipes Fraser-Jenk. | Unresolved |  | IPNI |  | 
	
		| Thelypteris oroniensis L.D. Gómez | Accepted |  | TRO |  | 
	
		| Thelypteris ortegae A.R. Sm. | Unresolved |  | TRO |  | 
	
		| Thelypteris orthocaulis C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris ovata R.P. St. John | Accepted |  | TRO |  | 
	
		| Thelypteris ovata var. lindheimeri (C. Chr.) A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris ovata var. ovata | Synonym |  | TRO |  | 
	
		| Thelypteris oviedoae C. Sánchez & Zavaro | Unresolved |  | TRO |  | 
	
		| Thelypteris oxyoura C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris pachyrhachis (Kunze ex Mett.) Ching | Accepted |  | TRO |  | 
	
		| Thelypteris pachyrhachis var. bogotensis (C. Chr.) Alston | Accepted |  | TRO |  | 
	
		| Thelypteris pachyrhachis var. pachyrhachis | Synonym |  | TRO |  | 
	
		| Thelypteris pachyrhachis var. sprucei (Baker) A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris pacifica C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris palauensis C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris palawanensis C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris paleacea A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris paleata (Copel.) Holttum | Accepted |  | TRO |  | 
	
		| Thelypteris pallescens Ching | Unresolved |  | IPNI |  | 
	
		| Thelypteris × palmeri W.H.Wagner | Unresolved |  | IPNI |  | 
	
		| Thelypteris palmeri W.H. Wagner | Unresolved |  | TRO |  | 
	
		| Thelypteris paludosa (Blume) K. Iwats. | Synonym |  | TRO |  | 
	
		| Thelypteris palustris (A. Gray) Schott | Synonym |  | TRO |  | 
	
		| Thelypteris palustris var. haleana Fernald | Synonym |  | TRO |  | 
	
		| Thelypteris palustris var. pubescens (G. Lawson) Fernald | Unresolved |  | TRO |  | 
	
		| Thelypteris palustris var. pufferae (A.A. Eaton) Fernald | Synonym |  | TRO |  | 
	
		| Thelypteris palustris f. pufferae (A.A. Eaton) L.B. Sm. | Synonym |  | TRO |  | 
	
		| Thelypteris palustris var. squamigera Tardieu | Synonym |  | TRO |  | 
	
		| Thelypteris panamensis (C. Presl) E.P. St. John | Synonym |  | TRO |  | 
	
		| Thelypteris papilio (C. Hope) K. Iwats. | Synonym |  | TRO |  | 
	
		| Thelypteris × papilioides Fraser-Jenk. | Unresolved |  | TRO |  | 
	
		| Thelypteris papyracea C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris × parahispidula Fraser-Jenk. | Unresolved |  | IPNI |  | 
	
		| Thelypteris paranaensis Salino | Unresolved |  | IPNI |  | 
	
		| Thelypteris paraphysata C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris parasitica Tardieu | Unresolved |  | TRO |  | 
	
		| Thelypteris parathelypteris (Christ) Ching | Accepted |  | TRO |  | 
	
		| Thelypteris paripinnata C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris parishii Panigrahi | Unresolved |  | IPNI |  | 
	
		| Thelypteris parva A.R. Sm. & M. Kessler | Accepted |  | TRO |  | 
	
		| Thelypteris patens (Sw.) Small | Accepted |  | TRO |  | 
	
		| Thelypteris patens var. dependens (C. Chr.) Proctor | Accepted |  | TRO |  | 
	
		| Thelypteris patens var. patens | Synonym |  | TRO |  | 
	
		| Thelypteris patens var. scabriuscula (C. Presl) A.R. Sm. | Synonym |  | TRO |  | 
	
		| Thelypteris patens var. smithiana Ponce | Accepted |  | TRO |  | 
	
		| Thelypteris pauciflora C.F. Reed | Unresolved |  | TRO |  | 
	
		| Thelypteris paucijuga (Klotzsch) A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris paucinervata C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris paucinervata Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris paucipinnata (Donn. Sm.) C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris pavoniana (Klotzsch) R.M. Tryon | Accepted |  | TRO |  | 
	
		| Thelypteris pectiniformis (C. Chr.) Ching | Accepted |  | TRO |  | 
	
		| Thelypteris peliliuensis Fosberg | Unresolved |  | IPNI |  | 
	
		| Thelypteris pellita (Willd.) Proctor & Lourteig | Accepted |  | TRO |  | 
	
		| Thelypteris pelludia A.R. Sm. & M. Kessler | Accepted |  | TRO |  | 
	
		| Thelypteris peltata C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris peltochlamys C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris penangiana (Hook.) C.F. Reed | Synonym |  | TRO |  | 
	
		| Thelypteris pennata (Poir.) C.V. Morton | Accepted |  | TRO |  | 
	
		| Thelypteris pennellii A.R.Sm. | Unresolved |  | IPNI |  | 
	
		| Thelypteris pennigera Allan | Unresolved |  | IPNI |  | 
	
		| Thelypteris pentaphylla C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris peradenia A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris perakensis C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris perglandulifera C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris peripae (Sodiro) C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris peripaeoides L.D. Gómez | Synonym |  | TRO |  | 
	
		| Thelypteris perpilifera C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris perpubescens C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris perstrigosa (Maxon) Ching | Accepted |  | TRO |  | 
	
		| Thelypteris peruviana (Rosenst.) R.M. Tryon | Accepted |  | TRO |  | 
	
		| Thelypteris petelotii Ching | Synonym |  | TRO |  | 
	
		| Thelypteris petiolata K.Iwats. & M.Kato | Unresolved |  | IPNI |  | 
	
		| Thelypteris petrophila C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris phacelothrix (C. Chr. & Rosenst.) R.M. Tryon | Accepted |  | TRO |  | 
	
		| Thelypteris phegopteris (L.) Sloss. ex Rydb. | Accepted |  | TRO |  | 
	
		| Thelypteris phegopteris var. cruciata (Kaulf.) Ching | Accepted |  | TRO |  | 
	
		| Thelypteris philippina Ching | Unresolved |  | IPNI |  | 
	
		| Thelypteris physematioides C.V.Morton | Unresolved |  | IPNI |  | 
	
		| Thelypteris physematioides Morton | Unresolved |  | IPNI |  | 
	
		| Thelypteris piedrensis (C. Chr.) C.V. Morton | Accepted |  | TRO |  | 
	
		| Thelypteris pilonensis A.R. Sm. & M. Kessler | Accepted |  | TRO |  | 
	
		| Thelypteris pilosa (M. Martens & Galeotti) Crawford | Accepted |  | TRO |  | 
	
		| Thelypteris pilosa var. alabamensis Crawford | Accepted |  | TRO |  | 
	
		| Thelypteris pilosa var. major (E. Fourn.) Crawford | Synonym |  | TRO |  | 
	
		| Thelypteris pilosissima C.V. Morton | Accepted |  | TRO |  | 
	
		| Thelypteris pilosiuscula C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris pilosohispida (Hook.) Alston | Accepted |  | TRO |  | 
	
		| Thelypteris pilososquamata C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris pilosula (Klotzsch & H. Karst. ex Mett.) R.M. Tryon | Accepted |  | TRO |  | 
	
		| Thelypteris pinnata (Copel.) Ching | Accepted |  | TRO |  | 
	
		| Thelypteris pinnatifida A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris pittieri C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris pittsfordensis Vict. | Unresolved |  | IPNI |  | 
	
		| Thelypteris platensis Abbiatti | Unresolved |  | IPNI |  | 
	
		| Thelypteris platypes Ponce | Unresolved |  | IPNI |  | 
	
		| Thelypteris platyptera C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris pleiophylla Ponce | Unresolved |  | IPNI |  | 
	
		| Thelypteris plumosa C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris plurifolia C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris podotricha Ponce | Unresolved |  | IPNI |  | 
	
		| Thelypteris poecilophlebia C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris poiteana (Bory) Proctor | Accepted |  | TRO |  | 
	
		| Thelypteris polycarpa K.Iwats. | Unresolved |  | IPNI |  | 
	
		| Thelypteris polyotis C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris polyphlebia (C. Chr.) C.V. Morton | Accepted |  | TRO |  | 
	
		| Thelypteris polyphylla (Copel.) C.F. Reed | Synonym |  | TRO |  | 
	
		| Thelypteris polypodioides (Raddi) C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris polyptera C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris ponapeana C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris porphyricola Ching | Unresolved |  | IPNI |  | 
	
		| Thelypteris porphyrophlebia (Christ) C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris pozoi (Lag.) C.V. Morton | Synonym |  | TRO |  | 
	
		| Thelypteris pozoi subsp. himalaica (Ching) C.V. Morton | Synonym |  | TRO |  | 
	
		| Thelypteris pozoi subsp. mollissima (Fisch. ex Kunze) C.V. Morton | Synonym |  | TRO |  | 
	
		| Thelypteris praetermissa (Maxon) A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris praetervisa A.R.Sm. | Unresolved |  | IPNI |  | 
	
		| Thelypteris prenticei Alston | Unresolved |  | IPNI |  | 
	
		| Thelypteris prismatica Schelpe | Unresolved |  | IPNI |  | 
	
		| Thelypteris proboscidea A.R. Sm. | Unresolved |  | TRO |  | 
	
		| Thelypteris procera (D. Don) Fraser-Jenk. | Accepted |  | TRO |  | 
	
		| Thelypteris proctorii A.R. Sm. & Lellinger | Accepted |  | TRO |  | 
	
		| Thelypteris procurrens (Mett.) C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris producta (Kaulf.) C.F. Reed | Synonym |  | TRO |  | 
	
		| Thelypteris prolatipedis Lellinger | Accepted |  | TRO |  | 
	
		| Thelypteris prolifera Voster | Synonym |  | TRO |  | 
	
		| Thelypteris prolifera (Retz.) C.F. Reed | Synonym |  | TRO |  | 
	
		| Thelypteris prolixa (Willd.) Tardieu | Synonym |  | TRO |  | 
	
		| Thelypteris prominula C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris protecta C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris pseudarfakiana C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris pseudo-amboinensis (Rosenst.) Panigrahi | Accepted |  | TRO |  | 
	
		| Thelypteris pseudoaspidioides L.D. Gómez | Synonym |  | TRO |  | 
	
		| Thelypteris pseudogueintziana Alston | Unresolved |  | TRO |  | 
	
		| Thelypteris pseudohirsuta (Rosenst.) C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris × pseudoliukiuensis Seriz. | Unresolved |  | IPNI |  | 
	
		| Thelypteris pseudoparasitica C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris pseudoreptans C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris pseudosancta (C. Chr.) C.F. Reed | Synonym |  | TRO |  | 
	
		| Thelypteris pseudostenobasis C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris ptarmica (Kunze ex Mett.) C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris ptarmiciformis (C. Chr. & Rosenst. ex Rosenst.) C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris pterifolia (Mett. ex Kuhn) C.F. Reed | Synonym |  | TRO |  | 
	
		| Thelypteris pteroidea (Klotzsch) R.M. Tryon | Accepted |  | TRO |  | 
	
		| Thelypteris pterospora C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris puberula (Baker) C.V. Morton | Accepted |  | TRO |  | 
	
		| Thelypteris puberula var. puberula | Synonym |  | TRO |  | 
	
		| Thelypteris pubescens (L.) Proctor | Synonym |  | TRO |  | 
	
		| Thelypteris pubirachis (Baker) C.F. Reed | Synonym |  | TRO |  | 
	
		| Thelypteris pulcher Schelpe | Unresolved |  | IPNI |  | 
	
		| Thelypteris pulchra Schelpe | Accepted |  | TRO |  | 
	
		| Thelypteris pusilla (Mett.) Ching | Accepted |  | TRO |  | 
	
		| Thelypteris pustulosa (Copel.) C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris pyrrhorachis (Kunze) B.K. Nayar & S. Kaur | Accepted |  | TRO |  | 
	
		| Thelypteris pyrrhorhachis C.M.Kuo | Unresolved |  | IPNI |  | 
	
		| Thelypteris pyrrorhachis Kunze | Unresolved |  | TRO |  | 
	
		| Thelypteris quadrangularis (Fée) Schelpe | Unresolved |  | TRO |  | 
	
		| Thelypteris quadrangularis var. inconstans (C. Chr.) A.R. Sm. | Synonym |  | TRO |  | 
	
		| Thelypteris quadrangularis var. versicolor (R.P. St. John) A.R. Sm. | Synonym |  | TRO |  | 
	
		| Thelypteris quadriaurita C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris quadriquetra Ching | Unresolved |  | IPNI |  | 
	
		| Thelypteris quaylei Ching | Unresolved |  | IPNI |  | 
	
		| Thelypteris quelpaertensis (Christ) Ching | Accepted |  | TRO |  | 
	
		| Thelypteris quelpaertensis var. quelpaertensis | Synonym |  | TRO |  | 
	
		| Thelypteris raddii (Rosenst.) Ponce | Accepted |  | TRO |  | 
	
		| Thelypteris ramosii C.M.Kuo | Unresolved |  | IPNI |  | 
	
		| Thelypteris rampans (Baker) C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris randallii Maxon & C.V. Morton | Unresolved |  | TRO |  | 
	
		| Thelypteris ratnapurae Fraser-Jenk. | Unresolved |  | IPNI |  | 
	
		| Thelypteris rectangularis (Zoll.) B.K. Nayar & S. Kaur | Accepted |  | TRO |  | 
	
		| Thelypteris recumbens (Rosenst.) C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris reducta Small | Synonym |  | TRO |  | 
	
		| Thelypteris redunca A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris reederi C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris refracta (Fisch. & Mey. ex Kunze) C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris regis C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris regnelliana (C. Chr.) Ponce | Accepted |  | TRO |  | 
	
		| Thelypteris remote-pinnata Alston in K | Unresolved |  | IPNI |  | 
	
		| Thelypteris remotipinna C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris remotipinnata (Bonap.) Alston | Synonym |  | TRO |  | 
	
		| Thelypteris repanda C.V.Morton | Unresolved |  | IPNI |  | 
	
		| Thelypteris repanda Tagawa & K.Iwats. | Unresolved |  | IPNI |  | 
	
		| Thelypteris repandula C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris repens (C. Hope) Ching | Synonym |  | TRO |  | 
	
		| Thelypteris reptans C.V. Morton | Accepted |  | TRO |  | 
	
		| Thelypteris reptans var. tenera (Fée) Proctor | Accepted |  | TRO |  | 
	
		| Thelypteris resiliens (Maxon) A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris resinifera (Desv.) Proctor | Accepted |  | TRO |  | 
	
		| Thelypteris resinifera var. caribaea (Jenman) Proctor | Accepted |  | TRO |  | 
	
		| Thelypteris resinifera var. proxima (C. Chr.) A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris resinifera var. resinifera | Synonym |  | TRO |  | 
	
		| Thelypteris resinosofoetida (Hook.) Ching | Synonym |  | TRO |  | 
	
		| Thelypteris reticulata (L.) Proctor | Accepted |  | TRO |  | 
	
		| Thelypteris retroflexa (L.) Proctor & Lourteig | Accepted |  | TRO |  | 
	
		| Thelypteris retrorsa (Sodiro) A.R. Sm. | Synonym |  | TRO |  | 
	
		| Thelypteris retusa C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris rhachiflexuosa Riba | Accepted |  | TRO |  | 
	
		| Thelypteris rheophyta Proctor | Unresolved |  | TRO |  | 
	
		| Thelypteris rhombea C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris rigescens (Sodiro) A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris rigida C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris rigidifolia Ching | Unresolved |  | IPNI |  | 
	
		| Thelypteris rimbachii (Rosenst.) C.F. Reed | Synonym |  | TRO |  | 
	
		| Thelypteris riograndensis (Lindm.) C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris riopardensis C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris rioverdensis (C. Chr.) Ponce | Accepted |  | TRO |  | 
	
		| Thelypteris riparia C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris rivulariformis (Rosenst.) C.F. Reed | Synonym |  | TRO |  | 
	
		| Thelypteris rivularioides (Fée) Abbiatti | Accepted |  | TRO |  | 
	
		| Thelypteris rivularioides var. arechavaletae (Hieron.) Abbiatti | Synonym |  | TRO |  | 
	
		| Thelypteris rivularioides var. pseudomontana (Hieron.) Abbiatti | Synonym |  | TRO |  | 
	
		| Thelypteris robertiana (Hoffm.) Sloss. ex Rydb. | Synonym |  | TRO |  | 
	
		| Thelypteris robinsonii (Ridl.) Ching | Accepted |  | TRO |  | 
	
		| Thelypteris rodigasiana C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris roemeriana C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris rolandii (C. Chr.) R.M. Tryon | Accepted |  | TRO |  | 
	
		| Thelypteris roraimensis (Baker) C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris rosei (Maxon) R.M. Tryon | Accepted |  | TRO |  | 
	
		| Thelypteris rosenstockii (C. Chr.) R.M. Tryon | Accepted |  | TRO |  | 
	
		| Thelypteris rosulata A.R. Sm. & M. Kessler | Accepted |  | TRO |  | 
	
		| Thelypteris rotumaensis C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris rubicunda K.Iwats. | Unresolved |  | IPNI |  | 
	
		| Thelypteris rubida K.Iwats. | Unresolved |  | IPNI |  | 
	
		| Thelypteris rubra (Ching) K. Iwats. | Accepted |  | TRO |  | 
	
		| Thelypteris rubrinervis K.Iwats. | Unresolved |  | IPNI |  | 
	
		| Thelypteris rudiformis (C. Chr.) A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris rudis (Kunze) Proctor | Accepted |  | TRO |  | 
	
		| Thelypteris rufa (Poir.) A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris rufostraminea (Christ) Ching | Accepted |  | TRO |  | 
	
		| Thelypteris ruiziana (Klotzsch) A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris rupestris (Klotzsch) C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris rupi-insularis Fosberg | Unresolved |  | IPNI |  | 
	
		| Thelypteris rupicola Hosok. | Unresolved |  | TRO |  | 
	
		| Thelypteris rurutensis C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris rusbyi (C. Chr.) R.M. Tryon | Accepted |  | TRO |  | 
	
		| Thelypteris rustica (Fée) Proctor | Accepted |  | TRO |  | 
	
		| Thelypteris sagittata (Sw.) Proctor | Synonym |  | TRO |  | 
	
		| Thelypteris sagittifolia C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris sagittifolioides C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris sakayensis C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris salicifolia C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris salzmannii (Fée) C.V. Morton | Accepted |  | TRO |  | 
	
		| Thelypteris samarensis C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris sambasensis K.Iwats. & M.Kato | Unresolved |  | IPNI |  | 
	
		| Thelypteris sambiranensis C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris sampsonii K.Iwats. | Unresolved |  | IPNI |  | 
	
		| Thelypteris sancta (L.) Ching | Accepted |  | TRO |  | 
	
		| Thelypteris sancta var. magna (Jenman) Proctor | Accepted |  | TRO |  | 
	
		| Thelypteris sanctae-catharinae Ponce | Unresolved |  | IPNI |  | 
	
		| Thelypteris sanctiformis (C. Chr.) C.F. Reed | Synonym |  | TRO |  | 
	
		| Thelypteris sandwicensis Fosb. | Unresolved |  | IPNI |  | 
	
		| Thelypteris sapechoana A.R. Sm. & M. Kessler | Accepted |  | TRO |  | 
	
		| Thelypteris savaiensis C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris saxatilis R.P. St. John | Synonym |  | TRO |  | 
	
		| Thelypteris saxicola C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris scaberula (Ching) C.F. Reed | Synonym |  | TRO |  | 
	
		| Thelypteris scabra Lellinger | Accepted |  | TRO |  | 
	
		| Thelypteris scalaris (Christ) Alston | Accepted |  | TRO |  | 
	
		| Thelypteris scallanii (Christ) C.V. Morton | Accepted |  | TRO |  | 
	
		| Thelypteris scalpturoides C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris scariosa C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris schaffneri (Fée) C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris schippii (Weath.) A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris schizotis (Hook.) M. Kessler & A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris schomburgkii A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris schunkei A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris schwackeana Salino | Unresolved |  | IPNI |  | 
	
		| Thelypteris sclerophylla (Poepp. ex Spreng.) C.V. Morton | Accepted |  | TRO |  | 
	
		| Thelypteris sclerophylla var. jamaicensis (Baker ex Jenman) Proctor | Accepted |  | TRO |  | 
	
		| Thelypteris scolopendrioides (L.) Proctor | Accepted |  | TRO |  | 
	
		| Thelypteris seemannii (J. Sm.) A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris semihastata (Kunze) Ching | Accepted |  | TRO |  | 
	
		| Thelypteris semilunata (Sodiro) A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris semirii Salino & Melo | Accepted |  | TRO |  | 
	
		| Thelypteris semisagittata C.V.Morton | Unresolved |  | IPNI |  | 
	
		| Thelypteris sericea (J. Scott ex Bedd.) C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris serra (Sw.) R.P. St. John | Accepted |  | TRO |  | 
	
		| Thelypteris serrata (Cav.) Alston | Accepted |  | TRO |  | 
	
		| Thelypteris serrra Small | Unresolved |  | IPNI |  | 
	
		| Thelypteris serrulata (Sw.) Proctor | Accepted |  | TRO |  | 
	
		| Thelypteris serrutula Ching | Synonym |  | TRO |  | 
	
		| Thelypteris sessilipinna C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris setigera (Blume) Ching | Synonym |  | TRO |  | 
	
		| Thelypteris setosula C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris setulosa A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris sevillana C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris shaferi Duek | Unresolved |  | IPNI |  | 
	
		| Thelypteris siambonensis (Hieron.) Hieron. | Synonym |  | TRO |  | 
	
		| Thelypteris siamensis Tagawa & K.Iwats. | Unresolved |  | IPNI |  | 
	
		| Thelypteris sikkimensis C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris silvatica C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris simaoensis Ching & Chu H. Wang | Unresolved |  | TRO |  | 
	
		| Thelypteris simillima K.Iwats. | Unresolved |  | IPNI |  | 
	
		| Thelypteris simozawae Tagawa | Synonym |  | TRO |  | 
	
		| Thelypteris simplex (Hook.) K. Iwats. | Synonym |  | TRO |  | 
	
		| Thelypteris simplicifolia C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris simulans Ching | Synonym |  | TRO |  | 
	
		| Thelypteris simulata (Davenp.) Nieuwl. | Accepted |  | TRO |  | 
	
		| Thelypteris singalaensis (Baker) Ching | Synonym |  | TRO |  | 
	
		| Thelypteris sintenisii C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris skinneri (Hook.) C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris sledgei Fraser-Jenk. | Unresolved |  | IPNI |  | 
	
		| Thelypteris sodiroi C.F. Reed | Synonym |  | TRO |  | 
	
		| Thelypteris sogerensis C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris soridepressa Salino & V.A.O.Dittrich | Unresolved |  | IPNI |  | 
	
		| Thelypteris spekei Ching | Unresolved |  | IPNI |  | 
	
		| Thelypteris spenceri C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris spinosa C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris spinulosa Nieuwl. | Unresolved |  | TRO |  | 
	
		| Thelypteris spinulosa var. fructuosa (Gilbert) Fernald | Unresolved |  | TRO |  | 
	
		| Thelypteris sprengelii Proctor | Unresolved |  | IPNI |  | 
	
		| Thelypteris sprucei (Baker) Ching | Synonym |  | TRO |  | 
	
		| Thelypteris squamaestipes Ching | Unresolved |  | IPNI |  | 
	
		| Thelypteris squamigera (Schltdl.) Ching | Synonym |  | TRO |  | 
	
		| Thelypteris squamipes (Copel.) C.F. Reed | Synonym |  | TRO |  | 
	
		| Thelypteris squamistipes (Ching) Ching | Synonym |  | TRO |  | 
	
		| Thelypteris squamulosa (Schltdl.) Ching | Accepted |  | TRO |  | 
	
		| Thelypteris srilankensis Panigrahi | Unresolved |  | IPNI |  | 
	
		| Thelypteris standleyi (Maxon & C.V. Morton) R.M. Tryon | Accepted |  | TRO |  | 
	
		| Thelypteris stegnogramma C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris stegnogrammoides Fosb. | Unresolved |  | IPNI |  | 
	
		| Thelypteris stegnogrammopsis C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris stellatopilosa C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris stenobasis Ching | Unresolved |  | IPNI |  | 
	
		| Thelypteris stenodonta C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris stenolepis (Baker) C.F. Reed | Synonym |  | TRO |  | 
	
		| Thelypteris stenophylla C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris stenopodum Panigrahi | Unresolved |  | IPNI |  | 
	
		| Thelypteris stephanii A.R. Sm. & M. Kessler | Accepted |  | TRO |  | 
	
		| Thelypteris stereophylla (Alderw.) Ching | Synonym |  | TRO |  | 
	
		| Thelypteris steyermarkii A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris stierii (Rosenst.) C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris stipellata K.Iwats. | Unresolved |  | IPNI |  | 
	
		| Thelypteris stipitata Fraser-Jenk. | Unresolved |  | IPNI |  | 
	
		| Thelypteris stokesii C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris stolzeana A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris straminea Reed | Accepted |  | TRO |  | 
	
		| Thelypteris striata Schelpe | Unresolved |  | TRO |  | 
	
		| Thelypteris strigillosa A.R. Sm. & Lellinger | Accepted |  | TRO |  | 
	
		| Thelypteris strigosa (Willd.) Tardieu | Synonym |  | TRO |  | 
	
		| Thelypteris strigosissima C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris struthiopteroides (C. Chr.) C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris subalpina C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris subandina (C. Chr. & Rosenst.) R.M. Tryon | Synonym |  | TRO |  | 
	
		| Thelypteris subappendiculata C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris subarida (Tatew. & Tagawa) C.F. Reed | Synonym |  | TRO |  | 
	
		| Thelypteris subattenuata C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris subaurita (Tagawa) Ching | Accepted |  | TRO |  | 
	
		| Thelypteris subcuneata C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris subdimorpha C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris subelata (Baker) K. Iwats. | Synonym |  | TRO |  | 
	
		| Thelypteris subfalcinella C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris subglanduligera Ching | Unresolved |  | TRO |  | 
	
		| Thelypteris subimmersa Ching | Synonym |  | TRO |  | 
	
		| Thelypteris subintegra (Baker) C.F. Reed | Synonym |  | TRO |  | 
	
		| Thelypteris submarginalis Small | Accepted |  | TRO |  | 
	
		| Thelypteris subnigra Ching | Unresolved |  | IPNI |  | 
	
		| Thelypteris subobliquata (Hook.) Ching | Accepted |  | TRO |  | 
	
		| Thelypteris subochthodes Ching | Accepted |  | TRO |  | 
	
		| Thelypteris subpectinata C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris subpennigera (C. Chr.) C.F. Reed | Synonym |  | TRO |  | 
	
		| Thelypteris subpubescens (Blume) K. Iwats. | Synonym |  | TRO |  | 
	
		| Thelypteris subrudis C. Chr. | Unresolved |  | TRO |  | 
	
		| Thelypteris subscandens A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris subsimilis C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris subtetragona (Link) E.P. St. John | Synonym |  | TRO |  | 
	
		| Thelypteris subtilis A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris subtruncata Panigrahi | Unresolved |  | IPNI |  | 
	
		| Thelypteris subulifolia Ching | Unresolved |  | IPNI |  | 
	
		| Thelypteris subvillosa Ching | Unresolved |  | IPNI |  | 
	
		| Thelypteris × subviridifrons Seriz. | Unresolved |  | IPNI |  | 
	
		| Thelypteris sulfurea (E.D. Br.) C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris sumatrana (Alderw.) Tagawa & K. Iwats. | Accepted |  | TRO |  | 
	
		| Thelypteris superba C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris supernitens C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris supina (Sodiro) A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris supranitens (Christ) C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris supraspinigera C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris suprastrigosa (Rosenst.) C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris × tabaquitensis C.D.Adams & Baksh.-Com. | Unresolved |  | IPNI |  | 
	
		| Thelypteris tablana (Christ) A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris tablaziensis (C. Chr.) Alston | Synonym |  | TRO |  | 
	
		| Thelypteris taiwanensis (C. Chr.) K. Iwats. | Synonym |  | TRO |  | 
	
		| Thelypteris tamandarei (Rosenst.) Ponce | Accepted |  | TRO |  | 
	
		| Thelypteris tannensis C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris tapantensis A.R. Sm. & Lellinger | Accepted |  | TRO |  | 
	
		| Thelypteris taprobanica Panigrahi | Unresolved |  | IPNI |  | 
	
		| Thelypteris tatei (Maxon & C.V. Morton) C.V. Morton | Synonym |  | TRO |  | 
	
		| Thelypteris tenebrica (Jenman) Proctor | Accepted |  | TRO |  | 
	
		| Thelypteris tenera (Roxb.) Fraser-Jenk. | Accepted |  | TRO |  | 
	
		| Thelypteris tenerifrons Ching | Unresolved |  | IPNI |  | 
	
		| Thelypteris tenerrima C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris tephrophylla C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris terminans Tagawa & K. Iwats. | Unresolved |  | TRO |  | 
	
		| Thelypteris terrestris C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris tetragona (Sw.) Small | Accepted |  | TRO |  | 
	
		| Thelypteris tetragona var. guadalupensis (Fée) K.U. Kramer | Synonym |  | TRO |  | 
	
		| Thelypteris teuscheri C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris thelypterioides (Michx.) Holub | Accepted |  | TRO |  | 
	
		| Thelypteris thelypteris Nieuwl. | Unresolved |  | IPNI |  | 
	
		| Thelypteris thibetica B.K.Nayar & S.Kaur | Unresolved |  | IPNI |  | 
	
		| Thelypteris thomsonii (Jenman) Proctor | Accepted |  | TRO |  | 
	
		| Thelypteris thwaitesii C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris todayensis C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris toganetra A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris tomentosa (Thouars) Tardieu | Accepted |  | TRO |  | 
	
		| Thelypteris tonkinensis (C. Chr.) Ching | Accepted |  | TRO |  | 
	
		| Thelypteris toppingii K.Iwats. | Unresolved |  | IPNI |  | 
	
		| Thelypteris torresiana (Gaudich.) Alston | Synonym |  | TRO |  | 
	
		| Thelypteris torresiana var. calvata (Baker) K. Iwats. | Synonym |  | TRO |  | 
	
		| Thelypteris totta (Thunb.) Schelpe | Accepted |  | TRO |  | 
	
		| Thelypteris totta var. hirsuta (Mett.) C.V. Morton | Synonym |  | TRO |  | 
	
		| Thelypteris totta var. longipinna (C. Chr.) C.V. Morton | Accepted |  | TRO |  | 
	
		| Thelypteris totta f. paucipilosus (H. Itô) C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris tottoides (Hayata ex H. Itô) C.V. Morton | Synonym |  | TRO |  | 
	
		| Thelypteris transversaria C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris trelawniensis Proctor | Unresolved |  | TRO |  | 
	
		| Thelypteris trianae Alston | Unresolved |  | IPNI |  | 
	
		| Thelypteris trichopoda K.Iwats. & M.Kato | Unresolved |  | IPNI |  | 
	
		| Thelypteris triphylla (Sw.) K. Iwats. | Synonym |  | TRO |  | 
	
		| Thelypteris triphylla var. parishii (Bedd.) K. Iwats. | Synonym |  | TRO |  | 
	
		| Thelypteris tristis (Kunze) R.M. Tryon | Accepted |  | TRO |  | 
	
		| Thelypteris truncata (Poir.) K. Iwats. | Accepted |  | TRO |  | 
	
		| Thelypteris truncata f. kwashotensis (Hayata) C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris truncata f. laevifrons (Hayata) C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris truncata f. sublaevifrons (Tagawa) C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris tryonorum A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris tsaratananensis (C. Chr.) Ching | Synonym |  | TRO |  | 
	
		| Thelypteris tuberculata Ching | Unresolved |  | IPNI |  | 
	
		| Thelypteris tuberculifera (C. Chr.) Ching | Accepted |  | TRO |  | 
	
		| Thelypteris tuerckheimii (Donn. Sm.) C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris turrialbae (Rosenst.) C.V. Morton | Accepted |  | TRO |  | 
	
		| Thelypteris tuxtlensis T. Krömer, Acebey & A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris ugoensis C.F. Reed | Unresolved |  | TRO |  | 
	
		| Thelypteris uliginosa (Kunze) Ching | Accepted |  | TRO |  | 
	
		| Thelypteris uliginosa var. calvata (Baker) K. Iwats. | Synonym |  | TRO |  | 
	
		| Thelypteris uliginosa var. elegans (Koidz.) K. Iwats. | Synonym |  | TRO |  | 
	
		| Thelypteris unca R.P. St. John | Synonym |  | TRO |  | 
	
		| Thelypteris uncinata A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris underwoodiana (Maxon) Ching | Accepted |  | TRO |  | 
	
		| Thelypteris uniauriculata C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris unidentata (Bedd.) Holttum | Synonym |  | TRO |  | 
	
		| Thelypteris unita C.V. Morton | Synonym |  | TRO |  | 
	
		| Thelypteris uraiensis (Rosenst.) Ching | Synonym |  | TRO |  | 
	
		| Thelypteris urbanii (Sodiro) A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris urdanetensis C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris urens (Rosenst.) C.F. Reed | Synonym |  | TRO |  | 
	
		| Thelypteris urophylla (Mett.) K. Iwats. | Accepted |  | TRO |  | 
	
		| Thelypteris utanagensis (Hieron.) C.F. Reed | Synonym |  | TRO |  | 
	
		| Thelypteris valdepilosa (Baker) C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris valida Tagawa & K.Iwats. | Unresolved |  | IPNI |  | 
	
		| Thelypteris varians (Fée) C.F. Reed | Synonym |  | TRO |  | 
	
		| Thelypteris × varievenulosa Viane | Unresolved |  | IPNI |  | 
	
		| Thelypteris varievestita C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris vattuonei (Hicken) Abbiatti | Synonym |  | TRO |  | 
	
		| Thelypteris velata C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris venturae A.R. Sm. | Accepted |  | TRO |  | 
	
		| Thelypteris venulosa C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris venusta (Heward) Proctor | Synonym |  | TRO |  | 
	
		| Thelypteris venusta var. usitata (Jenman) Proctor | Unresolved |  | TRO |  | 
	
		| Thelypteris verecunda Proctor | Unresolved |  | TRO |  | 
	
		| Thelypteris vernicosa A.R. Sm. & Lellinger | Accepted |  | TRO |  | 
	
		| Thelypteris verrucosa Ching | Unresolved |  | TRO |  | 
	
		| Thelypteris verruculosa C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris × versicolor R.P. St. John (pro. sp.) | Accepted |  | TRO |  | 
	
		| Thelypteris vestigiata C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris villana L.D. Gómez | Accepted |  | TRO |  | 
	
		| Thelypteris villosa (Link) C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris villosipes Ching | Unresolved |  | IPNI |  | 
	
		| Thelypteris vinosicarpa Ching | Unresolved |  | IPNI |  | 
	
		| Thelypteris viridifrons Tagawa | Synonym |  | TRO |  | 
	
		| Thelypteris viridis C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris viscosa (Baker) Ching | Synonym |  | TRO |  | 
	
		| Thelypteris vivipara (Raddi) C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris vulcanica (Baker) C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris wagneri Fosberg & Sachet | Unresolved |  | IPNI |  | 
	
		| Thelypteris wagneri Fosb. & Sachet | Unresolved |  | IPNI |  | 
	
		| Thelypteris wailele Flynn | Unresolved |  | IPNI |  | 
	
		| Thelypteris wantotensis C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris warburgii B.C.Stone | Unresolved |  | IPNI |  | 
	
		| Thelypteris wariensis C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris warmingii (C. Chr.) R.M. Tryon | Accepted |  | TRO |  | 
	
		| Thelypteris weberi (Copel.) C.F. Reed | Accepted |  | TRO |  | 
	
		| Thelypteris × wildemanii Viane | Unresolved |  | IPNI |  | 
	
		| Thelypteris williamsii Ching | Unresolved |  | IPNI |  | 
	
		| Thelypteris wollastonii Ching | Unresolved |  | IPNI |  | 
	
		| Thelypteris wrightii (Mett. ex D.C. Eaton) C.F. Reed | Synonym |  | TRO |  | 
	
		| Thelypteris xiphioides C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris xylodes (Kunze) Ching | Accepted |  | TRO |  | 
	
		| Thelypteris yaucoensis Proctor | Unresolved |  | TRO |  | 
	
		| Thelypteris yungensis A.R. Sm. & M. Kessler | Accepted |  | TRO |  | 
	
		| Thelypteris yunkweiensis Ching | Accepted |  | TRO |  | 
	
		| Thelypteris zambesiaca (Baker) Tardieu | Synonym |  | TRO |  | 
	
		| Thelypteris zambesiaca var. aequibasis (C. Chr.) Tardieu | Synonym |  | TRO |  | 
	
		| Thelypteris zamboangensis C.F.Reed | Unresolved |  | IPNI |  | 
	
		| Thelypteris zeylanica Ching | Unresolved |  | TRO |  | 
	
		| Thelypteris zurquiana A.R. Sm. & Lellinger | Accepted |  | TRO |  |