| Diplazium aberrans Maxon & C.V. Morton | Accepted |  | TRO | 
	
		| Diplazium aboreum (Willd.) C. Presl | Synonym |  | TRO | 
	
		| Diplazium acanthopus C.Chr. | Unresolved |  | IPNI | 
	
		| Diplazium accedens Blume | Synonym |  | TRO | 
	
		| Diplazium acrocarpum Rosenst. | Unresolved |  | IPNI | 
	
		| Diplazium acrostichoides (Sw.) Butters | Synonym |  | TRO | 
	
		| Diplazium acrotis H. Christ | Synonym |  | TRO | 
	
		| Diplazium actuale Fée | Synonym |  | TRO | 
	
		| Diplazium aculeatum Alderw. | Unresolved |  | IPNI | 
	
		| Diplazium acuminatum Lodd. | Synonym |  | TRO | 
	
		| Diplazium acutale Fée | Synonym |  | TRO | 
	
		| Diplazium aemulum Underw. & Maxon | Unresolved |  | IPNI | 
	
		| Diplazium aequibasale C.Chr. | Unresolved |  | IPNI | 
	
		| Diplazium affine J.Sm. | Unresolved |  | IPNI | 
	
		| Diplazium agyokuense Tagawa | Accepted |  | TRO | 
	
		| Diplazium albidosquamatum Alderw. | Unresolved |  | IPNI | 
	
		| Diplazium alienum (Mett.) Hieron. | Accepted |  | TRO | 
	
		| Diplazium alismifolium C. Presl | Synonym |  | TRO | 
	
		| Diplazium allantodioides Ching | Synonym |  | TRO | 
	
		| Diplazium allantoideum M.G. Price | Unresolved |  | TRO | 
	
		| Diplazium allorgei Tardieu | Synonym |  | TRO | 
	
		| Diplazium alsophilum Maxon | Unresolved |  | IPNI | 
	
		| Diplazium alternifolium Blume | Unresolved |  | IPNI | 
	
		| Diplazium altissimum (Jenman) C. Chr. | Accepted |  | TRO | 
	
		| Diplazium altum (Copel.) C. Chr. | Accepted |  | TRO | 
	
		| Diplazium amamianum Tagawa | Accepted |  | TRO | 
	
		| Diplazium ambiguum Raddi | Accepted |  | TRO | 
	
		| Diplazium ambiguum (Sw.) Hook. | Synonym |  | TRO | 
	
		| Diplazium ambiguum var. ambiguum | Accepted |  | TRO | 
	
		| Diplazium amplifrons Alderw. | Unresolved |  | IPNI | 
	
		| Diplazium amplissimum Diels | Unresolved |  | IPNI | 
	
		| Diplazium amplum Liebm. | Synonym |  | TRO | 
	
		| Diplazium andapense (Tardieu) Rakotondr. | Accepted |  | TRO | 
	
		| Diplazium andicola (Stolze) M. Kessler & A.R. Sm. | Accepted |  | TRO | 
	
		| Diplazium andinum (L. Pacheco & R.C. Moran) M. Kessler & A.R. Sm. | Accepted |  | TRO | 
	
		| Diplazium angelopolitanum Rosenst. | Unresolved |  | IPNI | 
	
		| Diplazium angulosum C. Chr. | Accepted |  | TRO | 
	
		| Diplazium angustatum Amann | Unresolved |  | IPNI | 
	
		| Diplazium angustifolium (Michx.) Butters | Synonym |  | TRO | 
	
		| Diplazium angustifrons C.Presl | Unresolved |  | IPNI | 
	
		| Diplazium angustipinna Holttum | Unresolved |  | IPNI | 
	
		| Diplazium angustisquamatum (Holttum) Parris | Accepted |  | TRO | 
	
		| Diplazium annetii Jeanp. | Synonym |  | TRO | 
	
		| Diplazium anthraxacolepis Fée | Unresolved |  | TRO | 
	
		| Diplazium antioquiense A. Rojas | Unresolved |  | TRO | 
	
		| Diplazium apatelium Alderw. | Unresolved |  | IPNI | 
	
		| Diplazium aphanoneuron Ohwi | Synonym |  | TRO | 
	
		| Diplazium apicisorum Panigrahi & Sarn.Singh | Unresolved |  | IPNI | 
	
		| Diplazium apollinaris L'Herm. ex Fée | Unresolved |  | IPNI | 
	
		| Diplazium arayae A. Rojas | Unresolved |  | TRO | 
	
		| Diplazium arborescens Sw. | Synonym |  | TRO | 
	
		| Diplazium arboreum var. unilobum (Poir.) Kuhn | Unresolved |  | TRO | 
	
		| Diplazium aridum H. Christ | Synonym |  | TRO | 
	
		| Diplazium arisanense Hayata | Synonym |  | TRO | 
	
		| Diplazium armatum Holttum | Unresolved |  | IPNI | 
	
		| Diplazium arnottii Brack. | Unresolved |  | IPNI | 
	
		| Diplazium asperulum Alderw. | Unresolved |  | IPNI | 
	
		| Diplazium asperum Blume | Synonym |  | TRO | 
	
		| Diplazium aspidioides Klf.; Pr. | Unresolved |  | IPNI | 
	
		| Diplazium asplenioides (Kunze) PRESL | Synonym |  | TRO | 
	
		| Diplazium assimile Bedd. | Unresolved |  | TRO | 
	
		| Diplazium asterothrix C.Chr. | Unresolved |  | IPNI | 
	
		| Diplazium athyrioides T. Moore | Unresolved |  | TRO | 
	
		| Diplazium atirrense (Donn. Sm.) Lellinger | Accepted |  | TRO | 
	
		| Diplazium atirrense var. lobulatum C.D. Adams | Synonym |  | TRO | 
	
		| Diplazium atratum Christ | Unresolved |  | IPNI | 
	
		| Diplazium atropurpureum Rosenst. | Unresolved |  | IPNI | 
	
		| Diplazium atrosquamosum C.Chr. | Unresolved |  | IPNI | 
	
		| Diplazium atroviride C.V.Morton | Unresolved |  | IPNI | 
	
		| Diplazium auriculatum Kaulf. | Unresolved |  | IPNI | 
	
		| Diplazium australe (R. Br.) N.A. Wakef. | Accepted |  | TRO | 
	
		| Diplazium austrosylvaticum Fraser-Jenk. & Benniamin | Unresolved |  | TRO | 
	
		| Diplazium avitaguense Hieron. | Accepted |  | TRO | 
	
		| Diplazium axillare Ching | Unresolved |  | TRO | 
	
		| Diplazium bakerianum Domin | Synonym |  | TRO | 
	
		| Diplazium ballivianii Rosenst. | Unresolved |  | TRO | 
	
		| Diplazium bamlerianum Rosenst. | Unresolved |  | IPNI | 
	
		| Diplazium banahaoense C.Chr. | Unresolved |  | IPNI | 
	
		| Diplazium bantamense Blume | Synonym |  | TRO | 
	
		| Diplazium barbadense hort.; Kze. | Unresolved |  | IPNI | 
	
		| Diplazium barbatum C.Chr. | Unresolved |  | IPNI | 
	
		| Diplazium barisanicum C.Chr. | Unresolved |  | IPNI | 
	
		| Diplazium basahense Ching | Accepted |  | TRO | 
	
		| Diplazium basipinnatifidum Ching | Synonym |  | TRO | 
	
		| Diplazium beamanii M.G. Price | Unresolved |  | TRO | 
	
		| Diplazium beddomei C.Chr. | Unresolved |  | IPNI | 
	
		| Diplazium bellum Bir in Mehra & Bir | Unresolved |  | IPNI | 
	
		| Diplazium betimusense Alderw. | Unresolved |  | IPNI | 
	
		| Diplazium bicolor Stolze | Accepted |  | TRO | 
	
		| Diplazium bicuspe Hayata | Synonym |  | TRO | 
	
		| Diplazium bifrons (Sodiro) C. Chr. | Synonym |  | TRO | 
	
		| Diplazium biolleyi H. Christ | Accepted |  | TRO | 
	
		| Diplazium bipartitum (Bory) C. Presl | Synonym |  | TRO | 
	
		| Diplazium bipinnatum M. Kessler & A.R. Sm. | Unresolved |  | TRO | 
	
		| Diplazium birgeri C.Chr. | Unresolved |  | IPNI | 
	
		| Diplazium biseriale C.Chr. | Unresolved |  | IPNI | 
	
		| Diplazium biserratum C.Presl | Unresolved |  | IPNI | 
	
		| Diplazium bittyuense Tagawa | Synonym |  | TRO | 
	
		| Diplazium blanchetii Mett. | Unresolved |  | IPNI | 
	
		| Diplazium bogotense Hieron. | Unresolved |  | TRO | 
	
		| Diplazium bolivianum M. Kessler & A.R. Sm. | Unresolved |  | TRO | 
	
		| Diplazium bolsteri Copel. | Unresolved |  | TRO | 
	
		| Diplazium bombonasae Rosenst. | Accepted |  | TRO | 
	
		| Diplazium bombonasae var. petiolulatum Stolze | Synonym |  | TRO | 
	
		| Diplazium bommeri H. Christ | Synonym |  | TRO | 
	
		| Diplazium bonapartii Rosenst. | Synonym |  | TRO | 
	
		| Diplazium bonincola Nakai | Synonym |  | TRO | 
	
		| Diplazium boninense Koidz. | Unresolved |  | IPNI | 
	
		| Diplazium boryanum C.Presl | Unresolved |  | IPNI | 
	
		| Diplazium bostockii D.L.Jones | Unresolved |  | IPNI | 
	
		| Diplazium brachylobum Manickam & Irudayaraj | Unresolved |  | IPNI | 
	
		| Diplazium brachypodum C.Chr. | Unresolved |  | IPNI | 
	
		| Diplazium brachysoroides Copel. | Unresolved |  | IPNI | 
	
		| Diplazium brachysorum J.Sm. | Unresolved |  | IPNI | 
	
		| Diplazium brackenridgei T.Moore | Unresolved |  | IPNI | 
	
		| Diplazium brackenridgei Diels in Schum. & Laut. | Unresolved |  | IPNI | 
	
		| Diplazium bradeorum Rosenst. | Synonym |  | TRO | 
	
		| Diplazium brasiliense Rosenst. | Synonym |  | TRO | 
	
		| Diplazium brausei Rosenst. | Accepted |  | TRO | 
	
		| Diplazium brevicarpium Ching | Unresolved |  | TRO | 
	
		| Diplazium brevifolium Kunze | Unresolved |  | IPNI | 
	
		| Diplazium brevipes (Baker) C. Chr. | Accepted |  | TRO | 
	
		| Diplazium brevisorum J. Sm. | Unresolved |  | TRO | 
	
		| Diplazium brooksii Copel. | Unresolved |  | IPNI | 
	
		| Diplazium brunneo-viride (Jenman) C. Chr. | Synonym |  | TRO | 
	
		| Diplazium buchtienii Rosenst. | Unresolved |  | TRO | 
	
		| Diplazium bulbiferum Brack. | Unresolved |  | IPNI | 
	
		| Diplazium burchardi Rosenst. | Unresolved |  | IPNI | 
	
		| Diplazium burmanicum Ching | Accepted |  | TRO | 
	
		| Diplazium calliphyllum M.G.Price | Unresolved |  | IPNI | 
	
		| Diplazium callipteris Fée | Synonym |  | TRO | 
	
		| Diplazium calogramma H. Christ | Synonym |  | TRO | 
	
		| Diplazium camarinum C.Chr. | Unresolved |  | IPNI | 
	
		| Diplazium campbellii C.Chr. | Unresolved |  | IPNI | 
	
		| Diplazium camptocarpon Fée | Synonym |  | TRO | 
	
		| Diplazium caracasanum Kunze | Unresolved |  | TRO | 
	
		| Diplazium caracasanum (Willd.) T. Moore | Accepted |  | TRO | 
	
		| Diplazium cardiomorphum Alderw. | Unresolved |  | IPNI | 
	
		| Diplazium carnosum H. Christ | Accepted |  | TRO | 
	
		| Diplazium caryifolium C.Chr. | Unresolved |  | IPNI | 
	
		| Diplazium castaneifolium Sw. | Unresolved |  | IPNI | 
	
		| Diplazium caudatum Jermy | Unresolved |  | TRO | 
	
		| Diplazium cavalerianum (H. Christ) M. Kato | Accepted |  | TRO | 
	
		| Diplazium cavaleriei H. Christ | Synonym |  | TRO | 
	
		| Diplazium celtidifolium Kunze | Accepted |  | TRO | 
	
		| Diplazium celtidifolium var. puberulum Stolze | Synonym |  | TRO | 
	
		| Diplazium centripetale (Baker) Maxon | Accepted |  | TRO | 
	
		| Diplazium centrochinese Blot | Unresolved |  | IPNI | 
	
		| Diplazium ceramicum C.Chr. | Unresolved |  | IPNI | 
	
		| Diplazium ceratolepidioides I. Losch | Synonym |  | TRO | 
	
		| Diplazium ceratolepis (H. Christ) H. Christ | Accepted |  | TRO | 
	
		| Diplazium ceratolepis (H. Christ) L.D. Gómez | Synonym |  | TRO | 
	
		| Diplazium ceylanense T.Moore | Unresolved |  | IPNI | 
	
		| Diplazium ceylanicum Christ | Unresolved |  | IPNI | 
	
		| Diplazium chattagramicum Ching | Unresolved |  | IPNI | 
	
		| Diplazium chimboanum (Sodiro) C. Chr. | Accepted |  | TRO | 
	
		| Diplazium chimborazense (Spruce ex Baker) H. Christ | Accepted |  | TRO | 
	
		| Diplazium chimuense C.D. Adams | Accepted |  | TRO | 
	
		| Diplazium chinense (Baker) C. Chr. | Accepted |  | TRO | 
	
		| Diplazium chiriquense C.D. Adams | Accepted |  | TRO | 
	
		| Diplazium chittagongense Sarn.Singh & Panigrahi | Unresolved |  | IPNI | 
	
		| Diplazium chlorophyllum Bedd. | Unresolved |  | IPNI | 
	
		| Diplazium chlorophyllum Bedd.; C.Chr. | Unresolved |  | IPNI | 
	
		| Diplazium chlororachis Kze.; Fee | Unresolved |  | IPNI | 
	
		| Diplazium chocoense (Triana ex Mett.) Hieron. | Synonym |  | TRO | 
	
		| Diplazium christensenianum Koidz. | Synonym |  | TRO | 
	
		| Diplazium christii C.Chr. | Unresolved |  | IPNI | 
	
		| Diplazium chrysocarpon Alderw. | Unresolved |  | IPNI | 
	
		| Diplazium chrysocarpum Alderw. | Accepted |  | TRO | 
	
		| Diplazium ciliatum Stolze | Synonym |  | TRO | 
	
		| Diplazium coarctatum Link | Unresolved |  | IPNI | 
	
		| Diplazium cognatum Sledge | Unresolved |  | IPNI | 
	
		| Diplazium cominsii C.Chr. | Unresolved |  | IPNI | 
	
		| Diplazium comorense Bojer | Synonym |  | TRO | 
	
		| Diplazium conchatum J.Sm. | Unresolved |  | IPNI | 
	
		| Diplazium condorense L. Pacheco & A.R. Sm. | Unresolved |  | TRO | 
	
		| Diplazium confertum C.Chr. | Unresolved |  | IPNI | 
	
		| Diplazium congruum Brack. | Synonym |  | TRO | 
	
		| Diplazium conilii (Franch. & Sav.) Makino | Synonym |  | TRO | 
	
		| Diplazium consacense Hieron. | Unresolved |  | IPNI | 
	
		| Diplazium conterminum H. Christ | Synonym |  | TRO | 
	
		| Diplazium corderoi (Sodiro) Diels | Accepted |  | TRO | 
	
		| Diplazium cordifolium | Unresolved |  | TRO | 
	
		| Diplazium cordovense (Baker) C. Chr. | Synonym |  | TRO | 
	
		| Diplazium coriaceum Carr.in Seem. | Unresolved |  | IPNI | 
	
		| Diplazium costale (Sw.) C. Presl | Accepted |  | TRO | 
	
		| Diplazium costale var. robustum (Sodiro) Stolze | Accepted |  | TRO | 
	
		| Diplazium costalisorum Hayata | Synonym |  | TRO | 
	
		| Diplazium costaricanum C. Chr. | Synonym |  | TRO | 
	
		| Diplazium crassifolium (Sodiro) C. Chr. | Synonym |  | TRO | 
	
		| Diplazium crassiusculum Ching | Accepted |  | TRO | 
	
		| Diplazium crassiusculum f. simplex Ching | Synonym |  | TRO | 
	
		| Diplazium crenato-lobatum C.Chr. | Unresolved |  | IPNI | 
	
		| Diplazium crenato-serratum T. Moore | Unresolved |  | TRO | 
	
		| Diplazium crenatum Poir. | Unresolved |  | TRO | 
	
		| Diplazium crenulans Fee; Bak. | Unresolved |  | IPNI | 
	
		| Diplazium crenulatum Liebm. | Synonym |  | TRO | 
	
		| Diplazium crinioum C.Chr. | Unresolved |  | IPNI | 
	
		| Diplazium crinipes Ching | Synonym |  | TRO | 
	
		| Diplazium cristatum (Desr.) Alston | Accepted |  | TRO | 
	
		| Diplazium croatianum C.D. Adams | Accepted |  | TRO | 
	
		| Diplazium cubense T.Moore | Unresolved |  | IPNI | 
	
		| Diplazium cultratum C.Presl | Unresolved |  | IPNI | 
	
		| Diplazium cultrifolium (L.) Fée | Synonym |  | TRO | 
	
		| Diplazium cumingii C.Chr. | Unresolved |  | IPNI | 
	
		| Diplazium cuneatum Poir. | Unresolved |  | IPNI | 
	
		| Diplazium cuneifolium Rosenst. | Unresolved |  | TRO | 
	
		| Diplazium cuneipinnulum Panigrahi & Sarn.Singh | Unresolved |  | IPNI | 
	
		| Diplazium curtisii Holttum | Unresolved |  | IPNI | 
	
		| Diplazium curvatum Desv. | Unresolved |  | TRO | 
	
		| Diplazium cyatheifolium C.Presl | Unresolved |  | IPNI | 
	
		| Diplazium dameriae Pic.Serm. | Unresolved |  | TRO | 
	
		| Diplazium davaoense Copel. | Unresolved |  | IPNI | 
	
		| Diplazium deciduum | Unresolved |  | TRO | 
	
		| Diplazium decipiens T.Moore | Unresolved |  | IPNI | 
	
		| Diplazium decompositum Parris | Unresolved |  | TRO | 
	
		| Diplazium decrescens C.Chr. | Unresolved |  | IPNI | 
	
		| Diplazium decurrens Bedd. | Unresolved |  | IPNI | 
	
		| Diplazium decurrenti-alatum (Hook.) C. Chr. | Synonym |  | TRO | 
	
		| Diplazium decussatum Hook. | Synonym |  | TRO | 
	
		| Diplazium decussatum J. Sm. ex T. Moore & Houlston | Synonym |  | TRO | 
	
		| Diplazium deflexum J.Sm. | Unresolved |  | IPNI | 
	
		| Diplazium delicatulum Fée | Unresolved |  | IPNI | 
	
		| Diplazium delitescens Maxon | Synonym |  | TRO | 
	
		| Diplazium deltoideum C.Presl | Unresolved |  | IPNI | 
	
		| Diplazium denticulosum (Desv.) C. Chr. | Synonym |  | TRO | 
	
		| Diplazium dielsii Holttum | Unresolved |  | IPNI | 
	
		| Diplazium dietrichianum C.Chr. | Unresolved |  | IPNI | 
	
		| Diplazium dilatatum Blume | Accepted |  | TRO | 
	
		| Diplazium dimorphophyllum Koidz. | Synonym |  | TRO | 
	
		| Diplazium diplazioides (Klotzsch & H. Karst.) Alston | Accepted |  | TRO | 
	
		| Diplazium dissimile Fée | Unresolved |  | TRO | 
	
		| Diplazium distentum T.Moore | Unresolved |  | IPNI | 
	
		| Diplazium divaricatum Ching | Synonym |  | TRO | 
	
		| Diplazium divergens Rosenst. | Unresolved |  | TRO | 
	
		| Diplazium diversifolium (Wall.) J. Sm. | Accepted |  | TRO | 
	
		| Diplazium diversifrons Bory | Unresolved |  | IPNI | 
	
		| Diplazium divisissimum (Baker) H. Christ | Accepted |  | TRO | 
	
		| Diplazium doederleinii (Luerss.) Makino | Synonym |  | TRO | 
	
		| Diplazium dolichosorum Copel. | Unresolved |  | IPNI | 
	
		| Diplazium domingense Brause in Urb. | Unresolved |  | IPNI | 
	
		| Diplazium donianum (Mett.) Tardieu | Accepted |  | TRO | 
	
		| Diplazium donianum var. aphanoneuron (Ohwi) Tagawa | Synonym |  | TRO | 
	
		| Diplazium donianum var. lobatum Tagawa | Synonym |  | TRO | 
	
		| Diplazium donnell-smithii Christ | Accepted |  | TRO | 
	
		| Diplazium doodinervium Yabe; Mats. & Hayata | Unresolved |  | IPNI | 
	
		| Diplazium drepanolobium A.R. Sm. | Accepted |  | TRO | 
	
		| Diplazium dubium Link | Unresolved |  | IPNI | 
	
		| Diplazium ebenum J.Sm. | Unresolved |  | IPNI | 
	
		| Diplazium echinatum C. Chr. | Unresolved |  | TRO | 
	
		| Diplazium egenolfioides M.G. Price | Unresolved |  | TRO | 
	
		| Diplazium eggersii (Sodiro) C. Chr. | Synonym |  | TRO | 
	
		| Diplazium elegans Hook. | Unresolved |  | IPNI | 
	
		| Diplazium elegans Linden | Unresolved |  | IPNI | 
	
		| Diplazium ellipticum C.Chr. | Unresolved |  | IPNI | 
	
		| Diplazium elmeri C.Chr. | Unresolved |  | IPNI | 
	
		| Diplazium elongatum Fée | Synonym |  | TRO | 
	
		| Diplazium entecnum Mickel & Beitel | Synonym |  | TRO | 
	
		| Diplazium epirachis H. Christ | Synonym |  | TRO | 
	
		| Diplazium errans Lorea-Hern. & A.R. Sm. | Accepted |  | TRO | 
	
		| Diplazium esculentoides M.Kato | Unresolved |  | IPNI | 
	
		| Diplazium esculentum (Retz.) Sw. | Accepted |  | TRO | 
	
		| Diplazium expansum Willd. | Accepted |  | TRO | 
	
		| Diplazium extensum J.Sm. | Unresolved |  | IPNI | 
	
		| Diplazium fadyenii (Hook.) Proctor | Accepted |  | TRO | 
	
		| Diplazium falcalum Liebm. | Unresolved |  | IPNI | 
	
		| Diplazium falcatum D. Don | Accepted |  | TRO | 
	
		| Diplazium falcinellum C.Chr. | Unresolved |  | IPNI | 
	
		| Diplazium fauriei H. Christ | Synonym |  | TRO | 
	
		| Diplazium feei W. Schaffn. ex Fée | Unresolved |  | TRO | 
	
		| Diplazium fenzlianum C. Chr. | Unresolved |  | TRO | 
	
		| Diplazium ferulaceum (T. Moore ex Hook.) Lellinger | Accepted |  | TRO | 
	
		| Diplazium fieldingianum Panigrahi | Unresolved |  | IPNI | 
	
		| Diplazium filamentosum Q.C.B.Cronk | Unresolved |  | IPNI | 
	
		| Diplazium fimbriichlamys Nakai | Synonym |  | TRO | 
	
		| Diplazium fimbristegium Alderw. | Unresolved |  | IPNI | 
	
		| Diplazium firmum Fée | Unresolved |  | IPNI | 
	
		| Diplazium flaccidum H. Christ | Synonym |  | TRO | 
	
		| Diplazium flavescens (Mett.) Christ | Synonym |  | TRO | 
	
		| Diplazium flavescens var. proliferum Christ | Synonym |  | TRO | 
	
		| Diplazium flavoviride | Unresolved |  | TRO | 
	
		| Diplazium flexuosum PRESL | Unresolved |  | TRO | 
	
		| Diplazium forbesii C.Chr. | Unresolved |  | IPNI | 
	
		| Diplazium formosanum Rosenst. | Synonym |  | TRO | 
	
		| Diplazium forrestii (Ching ex Z.R. Wang) Fraser-Jenk. | Accepted |  | TRO | 
	
		| Diplazium fosbergii C.V.Morton | Unresolved |  | IPNI | 
	
		| Diplazium franconis Liebm. | Accepted |  | TRO | 
	
		| Diplazium fraseri (Mett.) Hieron. | Accepted |  | TRO | 
	
		| Diplazium fraternum C.Presl | Unresolved |  | IPNI | 
	
		| Diplazium fraxifolium C. Presl | Synonym |  | TRO | 
	
		| Diplazium fraxineum D. Don | Synonym |  | TRO | 
	
		| Diplazium fraxinifolium C.Presl | Unresolved |  | IPNI | 
	
		| Diplazium fraxinifolium Lodd.; Pr. | Unresolved |  | IPNI | 
	
		| Diplazium frondosum H. Christ | Unresolved |  | TRO | 
	
		| Diplazium fructuosum Copel. | Unresolved |  | IPNI | 
	
		| Diplazium fuenzalidae Esp. Bustos | Unresolved |  | TRO | 
	
		| Diplazium fuertesii Brause | Unresolved |  | TRO | 
	
		| Diplazium fuliginosum (Hook.) M.G. Price | Accepted |  | TRO | 
	
		| Diplazium furculicolum Alderw. | Unresolved |  | IPNI | 
	
		| Diplazium fuscopubescens (Hook.) T. Moore | Synonym |  | TRO | 
	
		| Diplazium fuscum (Baker) C. Chr. | Synonym |  | TRO | 
	
		| Diplazium gachetense Hieron. | Unresolved |  | IPNI | 
	
		| Diplazium gaudichaudii C.Chr. | Unresolved |  | IPNI | 
	
		| Diplazium gemmiferum H. Christ | Synonym |  | TRO | 
	
		| Diplazium geophilum Alderw. | Unresolved |  | IPNI | 
	
		| Diplazium giganteum (Baker) Ching | Synonym |  | TRO | 
	
		| Diplazium gillespiei M.Kato | Unresolved |  | IPNI | 
	
		| Diplazium gilletii Christ | Unresolved |  | IPNI | 
	
		| Diplazium glaberrimum T.Moore | Unresolved |  | IPNI | 
	
		| Diplazium godmanii (Baker) C. Chr. | Synonym |  | TRO | 
	
		| Diplazium gomezianum C.D. Adams | Accepted |  | TRO | 
	
		| Diplazium gracilescens C. Chr. | Unresolved |  | TRO | 
	
		| Diplazium grammitis T.Moore | Unresolved |  | IPNI | 
	
		| Diplazium grammitoides C. Presl | Accepted |  | TRO | 
	
		| Diplazium grammitoides var. conilii (Franch. & Sav.) Nakai | Synonym |  | TRO | 
	
		| Diplazium grammitoides f. yakusimense H. Itô | Synonym |  | TRO | 
	
		| Diplazium grande (Baker) C. Chr. | Synonym |  | TRO | 
	
		| Diplazium grandifolium (Sw.) Sw. | Accepted |  | TRO | 
	
		| Diplazium grandifolium var. andicola Stolze | Synonym |  | TRO | 
	
		| Diplazium grandifolium var. tomentellum Rosenst. | Synonym |  | TRO | 
	
		| Diplazium grashoffii Rosenst. | Unresolved |  | IPNI | 
	
		| Diplazium griffithii Bedd. | Synonym |  | TRO | 
	
		| Diplazium griffithii T. Moore | Synonym |  | TRO | 
	
		| Diplazium grosselobatum C. Chr. | Synonym |  | TRO | 
	
		| Diplazium guildingii Hieron. | Unresolved |  | IPNI | 
	
		| Diplazium hachijoense Nakai | Synonym |  | TRO | 
	
		| Diplazium haenkeanum C.Presl | Unresolved |  | IPNI | 
	
		| Diplazium hahnii C.Chr. | Unresolved |  | IPNI | 
	
		| Diplazium hainanense Ching | Accepted |  | TRO | 
	
		| Diplazium hammelianum C.D. Adams | Accepted |  | TRO | 
	
		| Diplazium hancockii (Maxim.) Hayata | Synonym |  | TRO | 
	
		| Diplazium harpeodes T.Moore | Unresolved |  | IPNI | 
	
		| Diplazium harrisonii (Baker) H. Christ | Accepted |  | TRO | 
	
		| Diplazium hastile C.Chr. | Unresolved |  | IPNI | 
	
		| Diplazium hayatamae | Unresolved |  | TRO | 
	
		| Diplazium hellwigii Mickel & Beitel | Accepted |  | TRO | 
	
		| Diplazium hemionitideum H. Christ | Synonym |  | TRO | 
	
		| Diplazium hemionitideum (Baker) C. Chr. | Synonym |  | TRO | 
	
		| Diplazium herbaceum Fée | Accepted |  | TRO | 
	
		| Diplazium heterocarpum Ching | Synonym |  | TRO | 
	
		| Diplazium heterolobum (Sodiro) C. Chr. | Synonym |  | TRO | 
	
		| Diplazium heterophlebium (Mett. ex Baker) Diels | Synonym |  | TRO | 
	
		| Diplazium heterophyllum Blume | Unresolved |  | IPNI | 
	
		| Diplazium hewittii C.Chr. | Unresolved |  | IPNI | 
	
		| Diplazium hians Kunze ex Klotzsch | Accepted |  | TRO | 
	
		| Diplazium hians var. tomentellum Rosenst. | Synonym |  | TRO | 
	
		| Diplazium hieronymi (Sodiro) C. Chr. | Accepted |  | TRO | 
	
		| Diplazium hilsenbergianum T. Moore | Unresolved |  | TRO | 
	
		| Diplazium himalayense Panigrahi | Unresolved |  | IPNI | 
	
		| Diplazium hirsutipes B.K.Nayar & S.Kaur | Unresolved |  | IPNI | 
	
		| Diplazium hirtipes H. Christ | Synonym |  | TRO | 
	
		| Diplazium hokouense Ching | Unresolved |  | TRO | 
	
		| Diplazium hookerianum (Hook.) Koidz. | Synonym |  | TRO | 
	
		| Diplazium horridum Kunze | Unresolved |  | IPNI | 
	
		| Diplazium hosei Christ | Unresolved |  | IPNI | 
	
		| Diplazium hottae Tagawa | Unresolved |  | IPNI | 
	
		| Diplazium humbertii (C. Chr.) Pic. Serm. | Accepted |  | TRO | 
	
		| Diplazium humile Baker | Unresolved |  | TRO | 
	
		| Diplazium × hutohanum Kurata ex S.Sherizawa | Unresolved |  | IPNI | 
	
		| Diplazium huttonii C.Chr. | Unresolved |  | IPNI | 
	
		| Diplazium hyalinum A. Rojas | Unresolved |  | TRO | 
	
		| Diplazium hylophilum C.Chr. | Unresolved |  | IPNI | 
	
		| Diplazium hymenodes (Mett.) Á. Löve & D. Löve | Accepted |  | TRO | 
	
		| Diplazium immensum Stolze | Accepted |  | TRO | 
	
		| Diplazium inaequilaterum Liebm. | Synonym |  | TRO | 
	
		| Diplazium incisum K. Schum. | Synonym |  | TRO | 
	
		| Diplazium incomptum Tagawa | Synonym |  | TRO | 
	
		| Diplazium inconspicuum Christ | Unresolved |  | IPNI | 
	
		| Diplazium indicum N.C.Nair | Unresolved |  | IPNI | 
	
		| Diplazium induratum Diels | Synonym |  | TRO | 
	
		| Diplazium inflatisorum Hayata | Synonym |  | TRO | 
	
		| Diplazium ingens H. Christ | Accepted |  | TRO | 
	
		| Diplazium insigne Ching | Synonym |  | TRO | 
	
		| Diplazium integrifolium Blume | Unresolved |  | IPNI | 
	
		| Diplazium intercalatum H. Christ | Synonym |  | TRO | 
	
		| Diplazium iridiphyllum (Hayata) Hayata | Synonym |  | TRO | 
	
		| Diplazium irigense M.G.Price | Unresolved |  | IPNI | 
	
		| Diplazium isobasis H. Christ | Synonym |  | TRO | 
	
		| Diplazium japonicum (Thunb.) Bedd. | Synonym |  | TRO | 
	
		| Diplazium japonicum (Thunb.) Makino | Synonym |  | TRO | 
	
		| Diplazium japonicum var. conilii (Franch. & Sav.) Makino | Synonym |  | TRO | 
	
		| Diplazium japonicum var. coreanum Baker | Synonym |  | TRO | 
	
		| Diplazium japonicum var. oldhamii (Baker) C. Chr. | Synonym |  | TRO | 
	
		| Diplazium japonicum var. textori (Miq.) H. Christ | Synonym |  | TRO | 
	
		| Diplazium japonicum var. yaoshanense Y.C. Wu | Synonym |  | TRO | 
	
		| Diplazium japonomettenianum Nakai | Synonym |  | TRO | 
	
		| Diplazium jaraguae Rosenst. | Unresolved |  | IPNI | 
	
		| Diplazium javanicum Makino | Unresolved |  | TRO | 
	
		| Diplazium jerdonii Bedd. | Synonym |  | TRO | 
	
		| Diplazium josephii Sarn.Singh | Unresolved |  | IPNI | 
	
		| Diplazium juglandifolium Hook. | Unresolved |  | TRO | 
	
		| Diplazium kaalanum C. Chr. | Unresolved |  | TRO | 
	
		| Diplazium kanasiroi Tagawa | Synonym |  | TRO | 
	
		| Diplazium kappanensis Hayata | Synonym |  | TRO | 
	
		| Diplazium × kashmirianum Fraser-Jenk. | Unresolved |  | IPNI | 
	
		| Diplazium katzeri Regel | Unresolved |  | IPNI | 
	
		| Diplazium kaulfussii Hieron. | Unresolved |  | IPNI | 
	
		| Diplazium kawabatae Sa. Kurata | Unresolved |  | TRO | 
	
		| Diplazium kawakamii Hayata | Synonym |  | TRO | 
	
		| Diplazium kawakamii var. subglabratum Tagawa | Synonym |  | TRO | 
	
		| Diplazium kawakamii f. subglabratum (Tagawa) Nakaike | Unresolved |  | TRO | 
	
		| Diplazium kidoi Sa. Kurata | Unresolved |  | TRO | 
	
		| Diplazium kiusianum Koidz. | Accepted |  | TRO | 
	
		| Diplazium klotzschii (Mett.) T. Moore | Synonym |  | TRO | 
	
		| Diplazium kodamai Nakai | Synonym |  | TRO | 
	
		| Diplazium kunstleri Holttum | Unresolved |  | IPNI | 
	
		| Diplazium laciniatum Mickel & Beitel | Synonym |  | TRO | 
	
		| Diplazium laevipes C.Chr. | Unresolved |  | IPNI | 
	
		| Diplazium laffanianum C.Chr. | Unresolved |  | IPNI | 
	
		| Diplazium lanceolatum A. Rojas | Unresolved |  | TRO | 
	
		| Diplazium lanceum (Thunb.) C. Presl | Synonym |  | TRO | 
	
		| Diplazium lanceum var. crenatum Makino | Synonym |  | TRO | 
	
		| Diplazium larutense Bedd. | Unresolved |  | IPNI | 
	
		| Diplazium lasiopteris Kunze | Synonym |  | TRO | 
	
		| Diplazium lastii C. Chr. | Synonym |  | TRO | 
	
		| Diplazium latifolium (D. Don) T. Moore | Accepted |  | TRO | 
	
		| Diplazium latifolium var. cyclolobum H. Christ | Synonym |  | TRO | 
	
		| Diplazium latifrons Alderw. | Unresolved |  | IPNI | 
	
		| Diplazium latilobum Holttum | Unresolved |  | IPNI | 
	
		| Diplazium latilobum Parris | Unresolved |  | IPNI | 
	
		| Diplazium latisectum H. Rosend. | Synonym |  | TRO | 
	
		| Diplazium latisquamatum Holttum | Unresolved |  | IPNI | 
	
		| Diplazium laxifrons Rosenst. | Synonym |  | TRO | 
	
		| Diplazium lechleri (Mett.) T. Moore | Accepted |  | TRO | 
	
		| Diplazium legalloi Proctor | Unresolved |  | IPNI | 
	
		| Diplazium lehmannii Hieron. | Synonym |  | TRO | 
	
		| Diplazium leiopodum Hayata | Accepted |  | TRO | 
	
		| Diplazium lellingeri L. Pacheco | Unresolved |  | TRO | 
	
		| Diplazium leonardii Brause | Unresolved |  | IPNI | 
	
		| Diplazium lepidorachis C.Chr. | Unresolved |  | IPNI | 
	
		| Diplazium leptocarpon Fée | Unresolved |  | IPNI | 
	
		| Diplazium leptochlamys (Sodiro) Diels | Synonym |  | TRO | 
	
		| Diplazium leptogramma Alderw. | Unresolved |  | IPNI | 
	
		| Diplazium leptogrammoides C. Chr. | Accepted |  | TRO | 
	
		| Diplazium leptophyllum Baker ex C. Chr. | Synonym |  | TRO | 
	
		| Diplazium lherminieri Hieron. | Unresolved |  | TRO | 
	
		| Diplazium lilloi (Hicken) R.M. Tryon & A.F. Tryon | Accepted |  | TRO | 
	
		| Diplazium limbatum (Willd.) Proctor | Synonym |  | TRO | 
	
		| Diplazium lindbergii (Mett.) Christ | Accepted |  | TRO | 
	
		| Diplazium lindbergii var. subnuda (H. Karst.) Hieron. | Synonym |  | TRO | 
	
		| Diplazium lineolatum Blume | Unresolved |  | IPNI | 
	
		| Diplazium lobatocrenatum Tagawa | Accepted |  | TRO | 
	
		| Diplazium lobatum (Tagawa) Tagawa | Accepted |  | TRO | 
	
		| Diplazium lobbianum (Hook.) Moore | Accepted |  | TRO | 
	
		| Diplazium lobulosum (Wall.) C. Presl | Synonym |  | TRO | 
	
		| Diplazium loddigesii J.Sm.; Diels | Unresolved |  | IPNI | 
	
		| Diplazium lohfauense C. Chr. ex Y.C. Wu, K. Wong & Pong | Synonym |  | TRO | 
	
		| Diplazium lomariaceum (C. Chr.) M.G. Price | Accepted |  | TRO | 
	
		| Diplazium lonchophyllum Kunze | Accepted |  | TRO | 
	
		| Diplazium longicarpum Kodama | Unresolved |  | TRO | 
	
		| Diplazium longicarpum Koidz. | Unresolved |  | TRO | 
	
		| Diplazium longifolium T. Moore | Synonym |  | TRO | 
	
		| Diplazium longipes Fée | Unresolved |  | IPNI | 
	
		| Diplazium longisorum (Baker) C. Chr. | Accepted |  | TRO | 
	
		| Diplazium longissimum Cop.C.Chr. | Unresolved |  | IPNI | 
	
		| Diplazium lucidum Poir. | Unresolved |  | IPNI | 
	
		| Diplazium lutchuense Koidz. | Synonym |  | TRO | 
	
		| Diplazium luzoniense Spreng. | Unresolved |  | IPNI | 
	
		| Diplazium macrodictyon (Baker) Diels | Accepted |  | TRO | 
	
		| Diplazium macrophyllum Desv. | Accepted |  | TRO | 
	
		| Diplazium macrophyllum Ching | Synonym |  | TRO | 
	
		| Diplazium macropterum (Sodiro) C. Chr. | Synonym |  | TRO | 
	
		| Diplazium macrosorum M.G.Price | Unresolved |  | IPNI | 
	
		| Diplazium macrotis (Baker) H. Christ | Accepted |  | TRO | 
	
		| Diplazium magofukui Nakai | Synonym |  | TRO | 
	
		| Diplazium makinoi Y. Yabe | Unresolved |  | TRO | 
	
		| Diplazium malabaricum Spreng. | Synonym |  | TRO | 
	
		| Diplazium malaccense C. Presl | Unresolved |  | TRO | 
	
		| Diplazium mamberamense Alderw. | Unresolved |  | IPNI | 
	
		| Diplazium manilense C.Chr. | Unresolved |  | IPNI | 
	
		| Diplazium maonense Ching | Accepted |  | TRO | 
	
		| Diplazium mapiriense Rosenst. | Unresolved |  | TRO | 
	
		| Diplazium marattiifolium H. Christ | Synonym |  | TRO | 
	
		| Diplazium marginale C. Chr. | Unresolved |  | TRO | 
	
		| Diplazium marginatum (L.) Diels | Synonym |  | TRO | 
	
		| Diplazium marginatum Blume | Synonym |  | TRO | 
	
		| Diplazium mariannae E.Fourn. ex Domin | Unresolved |  | IPNI | 
	
		| Diplazium marojejyense J.P.Roux | Unresolved |  | IPNI | 
	
		| Diplazium matamense A. Rojas | Synonym |  | TRO | 
	
		| Diplazium matangense C.Chr. | Unresolved |  | IPNI | 
	
		| Diplazium matsumurae Kodama in Matsum | Unresolved |  | IPNI | 
	
		| Diplazium matthewii (Copel.) C. Chr. | Accepted |  | TRO | 
	
		| Diplazium mattogrossense Sampaio | Unresolved |  | IPNI | 
	
		| Diplazium matudae C.D. Adams | Synonym |  | TRO | 
	
		| Diplazium mauianum Copel. | Unresolved |  | IPNI | 
	
		| Diplazium maximum (D. Don) C. Chr. | Synonym |  | TRO | 
	
		| Diplazium mayoris Rosenst. | Unresolved |  | IPNI | 
	
		| Diplazium mearnsii Hieron. | Unresolved |  | IPNI | 
	
		| Diplazium medogense (Ching & S.K. Wu) Fraser-Jenk. | Accepted |  | TRO | 
	
		| Diplazium meeboldii C.Chr. | Unresolved |  | IPNI | 
	
		| Diplazium megaphyllum (Baker) H. Christ | Synonym |  | TRO | 
	
		| Diplazium megistophyllum Tagawa | Unresolved |  | IPNI | 
	
		| Diplazium megistophyllum Parris | Unresolved |  | IPNI | 
	
		| Diplazium melanocaulon Brack. | Unresolved |  | IPNI | 
	
		| Diplazium melanochlamys T. Moore | Unresolved |  | TRO | 
	
		| Diplazium melanolepis Alderw. | Unresolved |  | IPNI | 
	
		| Diplazium melanopodium Fée | Unresolved |  | IPNI | 
	
		| Diplazium melanopus (Sodiro) Hieron. | Synonym |  | TRO | 
	
		| Diplazium melanosorum (Sodiro) C. Chr. | Accepted |  | TRO | 
	
		| Diplazium membranaceum Mett. | Unresolved |  | IPNI | 
	
		| Diplazium meniscioides (Sodiro) Diels | Synonym |  | TRO | 
	
		| Diplazium merrillii Copel. | Unresolved |  | TRO | 
	
		| Diplazium mesocarpum Alderw. | Unresolved |  | IPNI | 
	
		| Diplazium mesosorum (Makino) Koidz. | Accepted |  | TRO | 
	
		| Diplazium metcalfii Ching | Synonym |  | TRO | 
	
		| Diplazium mettenianum (Miq.) C. Chr. | Synonym |  | TRO | 
	
		| Diplazium mettenianum var. fauriei Tagawa | Synonym |  | TRO | 
	
		| Diplazium mettenianum var. isobasis (H. Christ) Tagawa | Synonym |  | TRO | 
	
		| Diplazium meyenianum C. Presl | Unresolved |  | TRO | 
	
		| Diplazium mickelii Mynssen & Sylvestre | Unresolved |  | IPNI | 
	
		| Diplazium microphyllon Desv. | Unresolved |  | TRO | 
	
		| Diplazium mildbraedii Brause | Unresolved |  | IPNI | 
	
		| Diplazium mildbraedii Hieron. | Unresolved |  | IPNI | 
	
		| Diplazium mildei (Kuhn) C. Chr. | Accepted |  | TRO | 
	
		| Diplazium mixtum C.V.Morton | Unresolved |  | IPNI | 
	
		| Diplazium moccennianum (Sodiro) C. Chr. | Accepted |  | TRO | 
	
		| Diplazium mohillense Fée | Synonym |  | TRO | 
	
		| Diplazium mollifrons (C. Chr.) M.G. Price | Accepted |  | TRO | 
	
		| Diplazium molokaiense W.J. Rob. | Unresolved |  | TRO | 
	
		| Diplazium moluccanum Rosenst. | Unresolved |  | IPNI | 
	
		| Diplazium montanum Alderw. | Unresolved |  | IPNI | 
	
		| Diplazium montediabloense Proctor | Unresolved |  | TRO | 
	
		| Diplazium monticolum (Jenman) C. Chr. | Accepted |  | TRO | 
	
		| Diplazium moranii C.D. Adams | Synonym |  | TRO | 
	
		| Diplazium morii Hayata | Synonym |  | TRO | 
	
		| Diplazium moritzianum Stolze | Accepted |  | TRO | 
	
		| Diplazium morogorense J.P.Roux | Unresolved |  | IPNI | 
	
		| Diplazium moultonii Tagawa | Unresolved |  | IPNI | 
	
		| Diplazium multiflorum T.Moore | Unresolved |  | IPNI | 
	
		| Diplazium multigemmatum Lellinger | Accepted |  | TRO | 
	
		| Diplazium muricatum Alderw. | Unresolved |  | TRO | 
	
		| Diplazium mutabile Hovenkamp | Unresolved |  | IPNI | 
	
		| Diplazium mutilum Kunze | Accepted |  | TRO | 
	
		| Diplazium myriomerum (H. Christ) Lellinger | Accepted |  | TRO | 
	
		| Diplazium nagamanum Makino | Synonym |  | TRO | 
	
		| Diplazium naganumanum Makino | Unresolved |  | IPNI | 
	
		| Diplazium nakamurae Seriz. | Unresolved |  | TRO | 
	
		| Diplazium namdaphaense Sarn.Singh & Panigrahi | Unresolved |  | IPNI | 
	
		| Diplazium nanolobum Sarn.Singh & Panigrahi | Unresolved |  | IPNI | 
	
		| Diplazium naumanni Hieron. | Unresolved |  | IPNI | 
	
		| Diplazium navarrense Lellinger | Accepted |  | TRO | 
	
		| Diplazium navarretei Stolze | Accepted |  | TRO | 
	
		| Diplazium neglectum (H. Karst.) C. Chr. | Accepted |  | TRO | 
	
		| Diplazium nelsonianum A. Rojas | Unresolved |  | TRO | 
	
		| Diplazium nemorale (Baker) Schelpe | Accepted |  | TRO | 
	
		| Diplazium × neobirii Fraser-Jenk. | Unresolved |  | TRO | 
	
		| Diplazium nervosum (Mett.) Diels | Accepted |  | TRO | 
	
		| Diplazium nicotianifolium C.Chr. | Unresolved |  | IPNI | 
	
		| Diplazium nigropaleaceum Kunze | Unresolved |  | IPNI | 
	
		| Diplazium nilidum Cav. | Unresolved |  | IPNI | 
	
		| Diplazium nipponicum Tagawa | Synonym |  | TRO | 
	
		| Diplazium nitens Rosenst. | Unresolved |  | IPNI | 
	
		| Diplazium nitidum Cav. | Unresolved |  | IPNI | 
	
		| Diplazium novoguineense Hieron. | Unresolved |  | IPNI | 
	
		| Diplazium nudicaule (Copel.) C. Chr. | Synonym |  | TRO | 
	
		| Diplazium nymanii Hieron. | Unresolved |  | IPNI | 
	
		| Diplazium oblongifolium Jermy in T.Chambers, Jermy & Crabbe | Unresolved |  | IPNI | 
	
		| Diplazium obscurum Christ | Accepted |  | TRO | 
	
		| Diplazium obtusum Desv. | Synonym |  | TRO | 
	
		| Diplazium ochraceum (Sodiro) Diels | Synonym |  | TRO | 
	
		| Diplazium odoratissimum Hayata | Synonym |  | TRO | 
	
		| Diplazium oellgaardii Stolze | Accepted |  | TRO | 
	
		| Diplazium okinawaense Tagawa | Synonym |  | TRO | 
	
		| Diplazium okudaiaeoides Sa. Kurata | Unresolved |  | TRO | 
	
		| Diplazium okudairai Makino | Synonym |  | TRO | 
	
		| Diplazium × okudairaioides Kurata | Unresolved |  | IPNI | 
	
		| Diplazium oldhamii (Baker) H. Christ | Synonym |  | TRO | 
	
		| Diplazium oligosorum Copel. | Unresolved |  | IPNI | 
	
		| Diplazium omeiense Ching | Synonym |  | TRO | 
	
		| Diplazium opacifolium Alderw. | Unresolved |  | IPNI | 
	
		| Diplazium opacum (D. Don) H. Christ | Synonym |  | TRO | 
	
		| Diplazium ophiodontum C.Chr. | Unresolved |  | IPNI | 
	
		| Diplazium ordinatum (H. Christ) Lellinger | Accepted |  | TRO | 
	
		| Diplazium oreophilum Underw. & Maxon | Unresolved |  | TRO | 
	
		| Diplazium orientale Rosenst. | Synonym |  | TRO | 
	
		| Diplazium oshimense (H. Christ) H. Itô | Synonym |  | TRO | 
	
		| Diplazium otites T.Moore & Houlston | Unresolved |  | IPNI | 
	
		| Diplazium otophorum (Miq.) C. Chr. | Synonym |  | TRO | 
	
		| Diplazium ottonis Klotzsch | Accepted |  | TRO | 
	
		| Diplazium owaseanum Kurata | Unresolved |  | IPNI | 
	
		| Diplazium oxylobum (Sodiro) C. Chr. | Accepted |  | TRO | 
	
		| Diplazium pactile Lellinger | Accepted |  | TRO | 
	
		| Diplazium palauanense Copel. in Perkins | Unresolved |  | IPNI | 
	
		| Diplazium palaviense Stolze | Accepted |  | TRO | 
	
		| Diplazium paleaceum Sarn.Singh & Panigrahi | Unresolved |  | IPNI | 
	
		| Diplazium pallidum T.Moore | Unresolved |  | IPNI | 
	
		| Diplazium palmense Rosenst. | Accepted |  | TRO | 
	
		| Diplazium panamense C.D. Adams | Accepted |  | TRO | 
	
		| Diplazium panigrahianum Sarn.Singh | Unresolved |  | IPNI | 
	
		| Diplazium papyraceum Jermy & T.G. Walker | Synonym |  | TRO | 
	
		| Diplazium paradoxum Fée | Accepted |  | TRO | 
	
		| Diplazium parallelogrammum Fée | Unresolved |  | IPNI | 
	
		| Diplazium parallelosorum (Baker) C. Chr. | Synonym |  | TRO | 
	
		| Diplazium pariens C.Chr. | Unresolved |  | IPNI | 
	
		| Diplazium pariens Copel. | Unresolved |  | IPNI | 
	
		| Diplazium paripinnatum C.Chr. | Unresolved |  | IPNI | 
	
		| Diplazium pastazense Hieron. | Synonym |  | TRO | 
	
		| Diplazium patens C.Presl | Unresolved |  | IPNI | 
	
		| Diplazium paucijugum Stolze | Unresolved |  | TRO | 
	
		| Diplazium paucipinnum Stolze | Accepted |  | TRO | 
	
		| Diplazium pectinatum (Fée) C. Chr. | Accepted |  | TRO | 
	
		| Diplazium pedatum Klotzsch | Accepted |  | TRO | 
	
		| Diplazium pedicellatum Parris | Unresolved |  | TRO | 
	
		| Diplazium peladense Hieron. | Unresolved |  | IPNI | 
	
		| Diplazium pellucidum Ching | Synonym |  | TRO | 
	
		| Diplazium permirabile Alderw. | Unresolved |  | IPNI | 
	
		| Diplazium perrotii Tagawa | Unresolved |  | IPNI | 
	
		| Diplazium petelotii Tardieu | Synonym |  | TRO | 
	
		| Diplazium petersenii (Kunze) H. Christ | Accepted |  | TRO | 
	
		| Diplazium petiolare C.Presl | Unresolved |  | IPNI | 
	
		| Diplazium petiolulatum (Stolze) A.R. Sm. | Accepted |  | TRO | 
	
		| Diplazium petrii Tardieu | Synonym |  | TRO | 
	
		| Diplazium phaeolepis Tagawa | Synonym |  | TRO | 
	
		| Diplazium phanerotis Kunze | Unresolved |  | IPNI | 
	
		| Diplazium pin-faense Ching | Accepted |  | TRO | 
	
		| Diplazium pinatubicum M.G.Price | Unresolved |  | IPNI | 
	
		| Diplazium pinnatifido-pinnatum (Hook.) T. Moore | Synonym |  | TRO | 
	
		| Diplazium pinnatifidum Kunze | Accepted |  | TRO | 
	
		| Diplazium plantagineum (L.) Sw. | Synonym |  | TRO | 
	
		| Diplazium plantaginifolium (L.) Urb. | Accepted |  | TRO | 
	
		| Diplazium platychlamys C.Chr. | Unresolved |  | IPNI | 
	
		| Diplazium platylepis Ching | Accepted |  | TRO | 
	
		| Diplazium platyphyllum H. Christ | Unresolved |  | TRO | 
	
		| Diplazium poiense C.Chr. | Unresolved |  | IPNI | 
	
		| Diplazium polyanthes C.Chr. | Unresolved |  | IPNI | 
	
		| Diplazium polycarpum C.Chr. | Unresolved |  | IPNI | 
	
		| Diplazium polymorphum C.Presl | Unresolved |  | IPNI | 
	
		| Diplazium polypodioides Blume | Synonym |  | TRO | 
	
		| Diplazium polypodioides var. vestitum (C.B. Clarke) C. Chr. | Synonym |  | TRO | 
	
		| Diplazium polyrhizon Sledge | Unresolved |  | IPNI | 
	
		| Diplazium polysporum Ching | Unresolved |  | TRO | 
	
		| Diplazium ponapense Hosok. | Unresolved |  | IPNI | 
	
		| Diplazium popayanense Hieron. | Unresolved |  | TRO | 
	
		| Diplazium porphyrolepium Alderw. | Unresolved |  | IPNI | 
	
		| Diplazium porphyrophyllum Alderw. | Unresolved |  | IPNI | 
	
		| Diplazium porphyrorachis Diels | Unresolved |  | IPNI | 
	
		| Diplazium portuguesense A. Rojas | Unresolved |  | TRO | 
	
		| Diplazium praelongum Fée | Unresolved |  | IPNI | 
	
		| Diplazium praestans (Copel.) C.V. Morton | Accepted |  | TRO | 
	
		| Diplazium prescottianum T.Moore | Unresolved |  | IPNI | 
	
		| Diplazium preslianum C.Chr. | Unresolved |  | IPNI | 
	
		| Diplazium prionophyllum Kunze | Unresolved |  | IPNI | 
	
		| Diplazium procerum C. Chr. | Unresolved |  | TRO | 
	
		| Diplazium procumbens Holttum | Unresolved |  | IPNI | 
	
		| Diplazium proliferoides Bory | Unresolved |  | IPNI | 
	
		| Diplazium proliferum (Lam.) Kaulf. | Accepted |  | TRO | 
	
		| Diplazium proliferum (Lam.) Desv. | Unresolved |  | TRO | 
	
		| Diplazium proliferum (Lam.) Thouars | Unresolved |  | TRO | 
	
		| Diplazium prolixum Rosenst. | Synonym |  | TRO | 
	
		| Diplazium prolongatum Rosenst. | Unresolved |  | IPNI | 
	
		| Diplazium prominulum Maxon | Synonym |  | TRO | 
	
		| Diplazium propinquum Alderw. | Unresolved |  | IPNI | 
	
		| Diplazium protensum Rosenst. | Unresolved |  | IPNI | 
	
		| Diplazium pseudoarboreum C.Chr. | Unresolved |  | IPNI | 
	
		| Diplazium pseudocrinipes Panigrahi & Sarn.Singh | Unresolved |  | IPNI | 
	
		| Diplazium pseudocyatheifolium Rosenst. | Unresolved |  | IPNI | 
	
		| Diplazium pseudodoederleinii Hayata | Synonym |  | TRO | 
	
		| Diplazium pseudoporrectum Hieron. | Unresolved |  | TRO | 
	
		| Diplazium pseudosetigerum (H. Christ) Fraser-Jenk. | Accepted |  | TRO | 
	
		| Diplazium pseudoshepherdioides Hieron. | Unresolved |  | IPNI | 
	
		| Diplazium pseudosylvaticum Panigrahi | Unresolved |  | IPNI | 
	
		| Diplazium psilopteron Kl. | Unresolved |  | IPNI | 
	
		| Diplazium puberulentum Mickel & Beitel | Accepted |  | TRO | 
	
		| Diplazium pubescens Link | Synonym |  | TRO | 
	
		| Diplazium pubigerum J.Sm. | Unresolved |  | IPNI | 
	
		| Diplazium pulcherrimum Raddi | Unresolved |  | IPNI | 
	
		| Diplazium pulchrum Tagawa | Accepted |  | TRO | 
	
		| Diplazium pulicosum (Hook.) T. Moore | Accepted |  | TRO | 
	
		| Diplazium pullingeri (Baker) J. Sm. | Synonym |  | TRO | 
	
		| Diplazium purdieanoides Hieron. | Unresolved |  | IPNI | 
	
		| Diplazium purdieanum Hieron. | Unresolved |  | IPNI | 
	
		| Diplazium pycnocarpon (Spreng.) M. Broun | Accepted |  | TRO | 
	
		| Diplazium queenslandicum Tindale | Unresolved |  | TRO | 
	
		| Diplazium radicans (Sw.) Desv. | Accepted |  | TRO | 
	
		| Diplazium rapense E.Brown | Unresolved |  | IPNI | 
	
		| Diplazium reflexum Bory | Unresolved |  | TRO | 
	
		| Diplazium remotum Fée | Accepted |  | TRO | 
	
		| Diplazium repandum Blume | Synonym |  | TRO | 
	
		| Diplazium repens Raddi | Unresolved |  | IPNI | 
	
		| Diplazium retusum Rosenst. | Synonym |  | TRO | 
	
		| Diplazium rhoifolium Kunze | Unresolved |  | TRO | 
	
		| Diplazium ribae Lellinger | Unresolved |  | IPNI | 
	
		| Diplazium ridleyi C.Chr. | Unresolved |  | IPNI | 
	
		| Diplazium riedelianum (Bong. ex Kuhn) Kuhn ex C. Chr. | Accepted |  | TRO | 
	
		| Diplazium rigescens Kunze | Unresolved |  | TRO | 
	
		| Diplazium riparium Holttum | Unresolved |  | IPNI | 
	
		| Diplazium rivale (Baker) Diels | Accepted |  | TRO | 
	
		| Diplazium roemerianum (Kunze) C. Presl | Accepted |  | TRO | 
	
		| Diplazium roemerianum var. caucense (H. Karst.) Hieron. | Accepted |  | TRO | 
	
		| Diplazium roemerianum var. crassidens (Fée) Hieron. | Accepted |  | TRO | 
	
		| Diplazium roemerianum var. roemerianum | Accepted |  | TRO | 
	
		| Diplazium roraimense Cremers & K.U. Kramer | Accepted |  | TRO | 
	
		| Diplazium rosenstockii Brownlie | Unresolved |  | IPNI | 
	
		| Diplazium rostratum Fée | Unresolved |  | IPNI | 
	
		| Diplazium roxburghii T.Moore | Unresolved |  | IPNI | 
	
		| Diplazium rubicanle C.Chr. | Unresolved |  | IPNI | 
	
		| Diplazium rude H. Christ | Synonym |  | TRO | 
	
		| Diplazium salazarianum A. Rojas | Unresolved |  | TRO | 
	
		| Diplazium sammatii (Kuhn) C. Chr. | Accepted |  | TRO | 
	
		| Diplazium sanctae-rosae H. Christ | Accepted |  | TRO | 
	
		| Diplazium sancti-johannis C.V.Morton | Unresolved |  | IPNI | 
	
		| Diplazium sanderi (C. Chr.) L. Pacheco | Accepted |  | TRO | 
	
		| Diplazium sandwichense C.Presl | Unresolved |  | IPNI | 
	
		| Diplazium sandwichianum Diels | Unresolved |  | TRO | 
	
		| Diplazium saposhanense Ching | Accepted |  | TRO | 
	
		| Diplazium sarawakense C.Chr. | Unresolved |  | IPNI | 
	
		| Diplazium sarojiniae Sarn.Singh | Unresolved |  | IPNI | 
	
		| Diplazium × satsumense Kurata | Unresolved |  | IPNI | 
	
		| Diplazium schkuhrii J.Sm. | Unresolved |  | IPNI | 
	
		| Diplazium schkuhrii Bedd. | Unresolved |  | IPNI | 
	
		| Diplazium schlechteri Hieron. | Unresolved |  | IPNI | 
	
		| Diplazium schlimense Fée | Unresolved |  | IPNI | 
	
		| Diplazium schraderi Hieron. | Unresolved |  | IPNI | 
	
		| Diplazium schultzei Hieron. | Unresolved |  | IPNI | 
	
		| Diplazium scotinum Rosenst. | Unresolved |  | IPNI | 
	
		| Diplazium sechellarum C.Chr. | Unresolved |  | IPNI | 
	
		| Diplazium seemannii T. Moore | Accepted |  | TRO | 
	
		| Diplazium seemaunii T.Moore | Unresolved |  | IPNI | 
	
		| Diplazium semihastatum (Kunze ex Mett.) C. Chr. | Accepted |  | TRO | 
	
		| Diplazium serampurens Spreng. | Synonym |  | TRO | 
	
		| Diplazium serratifolium Ching | Accepted |  | TRO | 
	
		| Diplazium serratum K. Schum. | Synonym |  | TRO | 
	
		| Diplazium serrulatum Desv. | Synonym |  | TRO | 
	
		| Diplazium setosum C.Presl | Unresolved |  | IPNI | 
	
		| Diplazium shepherdii (Spreng.) Link | Synonym |  | TRO | 
	
		| Diplazium shepherdii var. flagelliferum Bonner | Synonym |  | TRO | 
	
		| Diplazium shepherdii var. proliferum Rosenst. | Synonym |  | TRO | 
	
		| Diplazium shepherdii var. stuebelianum Hieron. | Synonym |  | TRO | 
	
		| Diplazium shepherdioides C.Chr. | Unresolved |  | IPNI | 
	
		| Diplazium siamense C. Chr. | Synonym |  | TRO | 
	
		| Diplazium sibiricum (Turcz. ex Kunze) Sa. Kurata | Accepted |  | TRO | 
	
		| Diplazium sibiricum (Turcz. ex Kunze) Jermy | Synonym |  | TRO | 
	
		| Diplazium sibiricum var. glabrum (Tagawa) Sa. Kurata | Synonym |  | TRO | 
	
		| Diplazium sibuyanense Alderw. | Unresolved |  | IPNI | 
	
		| Diplazium sieberianum C.Presl | Unresolved |  | IPNI | 
	
		| Diplazium sikkimense (C.B. Clarke) C. Chr. | Synonym |  | TRO | 
	
		| Diplazium silvestre Alderw. | Unresolved |  | IPNI | 
	
		| Diplazium simplicifolium Kodama | Unresolved |  | TRO | 
	
		| Diplazium simplicivenium Holttum | Synonym |  | TRO | 
	
		| Diplazium singhii Panigrahi | Unresolved |  | IPNI | 
	
		| Diplazium siroyamaense Tagawa | Synonym |  | TRO | 
	
		| Diplazium skutchii Lellinger | Accepted |  | TRO | 
	
		| Diplazium smithianum Kunze | Unresolved |  | IPNI | 
	
		| Diplazium smithianum Diels | Unresolved |  | IPNI | 
	
		| Diplazium sodiroanum C. Chr. | Accepted |  | TRO | 
	
		| Diplazium solandri Carr.in Seem. | Unresolved |  | IPNI | 
	
		| Diplazium solutum (H. Christ) Lellinger | Accepted |  | TRO | 
	
		| Diplazium sommerfeldii Á. Löve & D. Löve | Synonym |  | TRO | 
	
		| Diplazium sorbifolium C.Presl | Unresolved |  | IPNI | 
	
		| Diplazium sororium Carr.in Seem. | Unresolved |  | IPNI | 
	
		| Diplazium sororium Carrière | Unresolved |  | IPNI | 
	
		| Diplazium sorzogonense (C. Presl) C. Presl | Synonym |  | TRO | 
	
		| Diplazium speciosum Blume | Unresolved |  | IPNI | 
	
		| Diplazium speciosum Brack. | Unresolved |  | IPNI | 
	
		| Diplazium spectabile (Wall. ex Mett.) Bir | Synonym |  | TRO | 
	
		| Diplazium spectabile (Wall. ex Mett.) Ching | Synonym |  | TRO | 
	
		| Diplazium spiniferum Alderw. | Unresolved |  | IPNI | 
	
		| Diplazium spinosum Bory | Unresolved |  | IPNI | 
	
		| Diplazium spinulosum Blume | Synonym |  | TRO | 
	
		| Diplazium spinulosum var. novoquineensis Rosenst. | Synonym |  | TRO | 
	
		| Diplazium splendens Ching | Accepted |  | TRO | 
	
		| Diplazium sprucei (Baker) C. Chr. | Accepted |  | TRO | 
	
		| Diplazium squamigerum (Mett.) Matsum. | Synonym |  | TRO | 
	
		| Diplazium squamigerum (Mett.) Hope | Synonym |  | TRO | 
	
		| Diplazium squamuligerum Parris | Unresolved |  | TRO | 
	
		| Diplazium squarrosum K.Iwats. & M.Kato | Unresolved |  | IPNI | 
	
		| Diplazium stellatopilosum Holttum | Unresolved |  | IPNI | 
	
		| Diplazium stenocarpum (Mett.) C. Chr. | Accepted |  | TRO | 
	
		| Diplazium stenochlamys C. Chr. | Synonym |  | TRO | 
	
		| Diplazium stenolepis Ching | Accepted |  | TRO | 
	
		| Diplazium stipitipinnula Holttum | Unresolved |  | IPNI | 
	
		| Diplazium stokeyae Proctor | Unresolved |  | TRO | 
	
		| Diplazium stoliczkae Bedd. | Synonym |  | TRO | 
	
		| Diplazium stoliczkae var. hirsutipes Bedd. | Synonym |  | TRO | 
	
		| Diplazium stolzii Brause | Unresolved |  | IPNI | 
	
		| Diplazium striatastrum Lellinger | Accepted |  | TRO | 
	
		| Diplazium striatum (L.) C. Presl | Accepted |  | TRO | 
	
		| Diplazium stuebelianum (Hieron.) Stolze | Accepted |  | TRO | 
	
		| Diplazium stuebelii Hieron. | Unresolved |  | TRO | 
	
		| Diplazium subalatum Houlston & T.Moore | Unresolved |  | IPNI | 
	
		| Diplazium subdoederleinii Sarn.Singh & Panigrahi | Unresolved |  | IPNI | 
	
		| Diplazium subintegrum Holttum | Unresolved |  | IPNI | 
	
		| Diplazium submettenianum Ching | Synonym |  | TRO | 
	
		| Diplazium subnudum Alston | Unresolved |  | IPNI | 
	
		| Diplazium subobliquatum Rosenst. | Accepted |  | TRO | 
	
		| Diplazium subobtusum Rosenst. | Accepted |  | TRO | 
	
		| Diplazium subpolypodioides Alderw. | Unresolved |  | IPNI | 
	
		| Diplazium subquadripinnatum (Copel.) Lellinger | Accepted |  | TRO | 
	
		| Diplazium subrigescens Hayata | Synonym |  | TRO | 
	
		| Diplazium subrtipinnatum Nakai | Unresolved |  | TRO | 
	
		| Diplazium subscabrum C.Chr. | Unresolved |  | IPNI | 
	
		| Diplazium subserratum T.Moore | Unresolved |  | IPNI | 
	
		| Diplazium subsilvaticum H. Christ | Accepted |  | TRO | 
	
		| Diplazium subsinuatum (Wall. ex Hook. & Grev.) Tagawa | Accepted |  | TRO | 
	
		| Diplazium subtripinnatum Nakai | Unresolved |  | TRO | 
	
		| Diplazium succulentum (C.B. Clarke) C. Chr. | Synonym |  | TRO | 
	
		| Diplazium sulcinervium C.Chr. | Unresolved |  | IPNI | 
	
		| Diplazium sundense Hassk. | Unresolved |  | IPNI | 
	
		| Diplazium supranitens C.Chr. | Unresolved |  | IPNI | 
	
		| Diplazium swartzii Blume | Synonym |  | TRO | 
	
		| Diplazium sylvaticum (Bory) Sw. | Accepted |  | TRO | 
	
		| Diplazium sylvaticum var. pinnatifida Bonap. | Synonym |  | TRO | 
	
		| Diplazium symmetricum (Copel.) M.G. Price | Accepted |  | TRO | 
	
		| Diplazium tabacinum Copel. | Unresolved |  | IPNI | 
	
		| Diplazium tabalosense Hieron. | Synonym |  | TRO | 
	
		| Diplazium tablazianum H. Christ | Accepted |  | TRO | 
	
		| Diplazium tablazianum var. subcoriaceum Rosenst. | Synonym |  | TRO | 
	
		| Diplazium taiwanense Tagawa | Synonym |  | TRO | 
	
		| Diplazium × takamiyae Fraser-Jenk. | Unresolved |  | TRO | 
	
		| Diplazium takii Sa. Kurata | Unresolved |  | TRO | 
	
		| Diplazium tamandarei Rosenst. | Unresolved |  | IPNI | 
	
		| Diplazium taquetii C. Chr. | Synonym |  | TRO | 
	
		| Diplazium tarapotense Rosenst. | Synonym |  | TRO | 
	
		| Diplazium tasiroi Tagawa | Unresolved |  | TRO | 
	
		| Diplazium taulahuae C. Chr. | Synonym |  | TRO | 
	
		| Diplazium taylorianum (Jenman) Maxon ex Proctor | Accepted |  | TRO | 
	
		| Diplazium tenebrosum C.Chr. | Unresolved |  | IPNI | 
	
		| Diplazium tenerifrons H. Christ | Synonym |  | TRO | 
	
		| Diplazium tenerum C.Presl | Unresolved |  | IPNI | 
	
		| Diplazium tenue Desv. | Unresolved |  | TRO | 
	
		| Diplazium tenuicaule Hayata | Accepted |  | TRO | 
	
		| Diplazium tenuifolium (Copel.) Lellinger | Accepted |  | TRO | 
	
		| Diplazium ternatum Liebm. | Accepted |  | TRO | 
	
		| Diplazium × tertium-maximale Fraser-Jenk. | Unresolved |  | TRO | 
	
		| Diplazium tetsu-yamanakae Sa. Kurata | Unresolved |  | TRO | 
	
		| Diplazium textorii (Miq.) Makino | Synonym |  | TRO | 
	
		| Diplazium thelypteroides (Michx.) C. Presl | Synonym |  | TRO | 
	
		| Diplazium thelypteroides (Michx.) Bedd. | Synonym |  | TRO | 
	
		| Diplazium thunbergii Nakai ex Momose | Synonym |  | TRO | 
	
		| Diplazium thunbergii var. angustatum Nakai | Synonym |  | TRO | 
	
		| Diplazium thwaitesii (A. Braun ex Mett.) Klotzsch ex T. Moore | Synonym |  | TRO | 
	
		| Diplazium tirapense Panigrahi & Sarn.Singh | Unresolved |  | IPNI | 
	
		| Diplazium tomentellum (Rosenst.) L.D. Gómez | Accepted |  | TRO | 
	
		| Diplazium tomentellum (Rosenst.) Lellinger | Unresolved |  | TRO | 
	
		| Diplazium tomentosum Blume | Unresolved |  | TRO | 
	
		| Diplazium tomitaroanum Masam. | Synonym |  | TRO | 
	
		| Diplazium × toriianum Kurata | Unresolved |  | IPNI | 
	
		| Diplazium torrentium (C.B. Clarke) Tardieu | Synonym |  | TRO | 
	
		| Diplazium travancoricum Bedd. | Unresolved |  | TRO | 
	
		| Diplazium trianae (Mett.) C. Chr. | Accepted |  | TRO | 
	
		| Diplazium triangulare Tagawa | Synonym |  | TRO | 
	
		| Diplazium tricholepis C.Chr. | Unresolved |  | IPNI | 
	
		| Diplazium trinitense Domin | Unresolved |  | IPNI | 
	
		| Diplazium truncatilobum C.Chr. | Unresolved |  | IPNI | 
	
		| Diplazium truncatum C. Presl | Unresolved |  | TRO | 
	
		| Diplazium tumulosum T. Moore | Unresolved |  | TRO | 
	
		| Diplazium tungurahuae (Sodiro) C. Chr. | Accepted |  | TRO | 
	
		| Diplazium tungurahuae x remotum C. Chr. X Feé | Unresolved |  | TRO | 
	
		| Diplazium turgidum Rosenst. | Unresolved |  | IPNI | 
	
		| Diplazium turubalense Rosenst. | Accepted |  | TRO | 
	
		| Diplazium tussacii Fée | Unresolved |  | IPNI | 
	
		| Diplazium tutense C.D. Adams | Accepted |  | TRO | 
	
		| Diplazium ulugurense Verdc. | Unresolved |  | TRO | 
	
		| Diplazium umbrosum (J. Sm.) Bedd. | Accepted |  | TRO | 
	
		| Diplazium umbrosum var. multicaudatum (Wall. ex C.B. Clarke) Bedd. | Synonym |  | TRO | 
	
		| Diplazium uncidens C.Chr. | Unresolved |  | IPNI | 
	
		| Diplazium undulatum Poir. | Unresolved |  | IPNI | 
	
		| Diplazium undulosum Sw. | Synonym |  | TRO | 
	
		| Diplazium unilaterale Mett. ex H. Christ | Unresolved |  | TRO | 
	
		| Diplazium unilobum Hieron. | Unresolved |  | TRO | 
	
		| Diplazium unilobum var. hymenodes (Mett.) Maxon | Synonym |  | TRO | 
	
		| Diplazium uraiense Rosenst. | Synonym |  | TRO | 
	
		| Diplazium uraiense var. cyclolobum (H. Christ) Tagawa | Synonym |  | TRO | 
	
		| Diplazium urbani C.Chr. | Unresolved |  | IPNI | 
	
		| Diplazium urbani Brause | Unresolved |  | IPNI | 
	
		| Diplazium urticifolium Christ | Accepted |  | TRO | 
	
		| Diplazium vacillans C.Chr. | Unresolved |  | IPNI | 
	
		| Diplazium vanvuureni Alderw. | Unresolved |  | IPNI | 
	
		| Diplazium varium Gaudich. | Unresolved |  | IPNI | 
	
		| Diplazium vastum (Mett.) Diels | Accepted |  | TRO | 
	
		| Diplazium veitchii H. Christ | Unresolved |  | TRO | 
	
		| Diplazium velaminosum (Diels) Pic. Serm. | Accepted |  | TRO | 
	
		| Diplazium velatinum Maxon & C.V. Morton | Unresolved |  | TRO | 
	
		| Diplazium venulosum (Baker) Diels | Accepted |  | TRO | 
	
		| Diplazium verapax (Donn. Sm.) Hieron. | Accepted |  | TRO | 
	
		| Diplazium vesiculosum (Sodiro) C. Chr. | Accepted |  | TRO | 
	
		| Diplazium vestitum C.Presl | Unresolved |  | IPNI | 
	
		| Diplazium villosum C. Presl | Unresolved |  | TRO | 
	
		| Diplazium vincentis C.Chr. | Unresolved |  | IPNI | 
	
		| Diplazium virchowii Diels | Synonym |  | TRO | 
	
		| Diplazium virescens Kunze | Synonym |  | TRO | 
	
		| Diplazium virescens var. conterminum (H. Christ) Sa. Kurata | Synonym |  | TRO | 
	
		| Diplazium virescens var. okinawaense (Tagawa) Sa. Kurata | Synonym |  | TRO | 
	
		| Diplazium virescens var. sugimotoi Sa. Kurata | Synonym |  | TRO | 
	
		| Diplazium virescens var. taiwanense (Tagawa) Sa. Kurata | Synonym |  | TRO | 
	
		| Diplazium viridescens Ching | Synonym |  | TRO | 
	
		| Diplazium viridissimum H. Christ | Synonym |  | TRO | 
	
		| Diplazium vitiense Carruth. | Synonym |  | TRO | 
	
		| Diplazium wageneri Kl.; A.Br. | Unresolved |  | IPNI | 
	
		| Diplazium wahauense M.Kato, Darnaedi & K.Iwats. | Unresolved |  | IPNI | 
	
		| Diplazium × wallichianum Fraser-Jenk. | Unresolved |  | TRO | 
	
		| Diplazium wallisii (Baker) C. Chr. | Synonym |  | TRO | 
	
		| Diplazium wangii Ching | Synonym |  | TRO | 
	
		| Diplazium wattsii C.Chr. | Unresolved |  | IPNI | 
	
		| Diplazium weinlandii Christ | Unresolved |  | IPNI | 
	
		| Diplazium welwitschii Diels | Accepted |  | TRO | 
	
		| Diplazium wendtii Mickel & A.R. Sm. | Accepted |  | TRO | 
	
		| Diplazium werckleanum Christ | Accepted |  | TRO | 
	
		| Diplazium wheeleri (Baker) Diels | Synonym |  | TRO | 
	
		| Diplazium whitfordii Copel. | Unresolved |  | IPNI | 
	
		| Diplazium wichurae (Mett.) Diels | Synonym |  | TRO | 
	
		| Diplazium williamsii Copel. | Unresolved |  | IPNI | 
	
		| Diplazium wilsonii (Baker) Diels | Accepted |  | TRO | 
	
		| Diplazium wilsonii var. brunneoviride (Jenman) Proctor | Accepted |  | TRO | 
	
		| Diplazium wolfii Hieron. | Accepted |  | TRO | 
	
		| Diplazium woodii Copel. | Unresolved |  | IPNI | 
	
		| Diplazium woodwardioides Holttum | Unresolved |  | IPNI | 
	
		| Diplazium xiphophyllum C.Chr. | Unresolved |  | IPNI | 
	
		| Diplazium yakumontanum Tagawa | Synonym |  | TRO | 
	
		| Diplazium yangpieense Ching | Accepted |  | TRO | 
	
		| Diplazium yaoshanense (Y.C. Wu) Tardieu | Synonym |  | TRO | 
	
		| Diplazium yaoshanicum Ching | Synonym |  | TRO | 
	
		| Diplazium yungense H. Christ & Rosenst. | Synonym |  | TRO | 
	
		| Diplazium yuyangense Ching | Synonym |  | TRO | 
	
		| Diplazium yuyoense M. Kessler & A.R. Sm. | Unresolved |  | TRO | 
	
		| Diplazium zakamenense (Tardieu) Rakotondr. | Accepted |  | TRO | 
	
		| Diplazium zanzibaricum (Baker) C. Chr. | Accepted |  | TRO | 
	
		| Diplazium zenkeri Hieron. | Synonym |  | TRO | 
	
		| Diplazium zeylanicum (Hook.) T. Moore | Accepted |  | TRO | 
	
		| Diplazium zollingeri Kunze | Unresolved |  | IPNI |