Checklist of World Ferns.

 Antigramma, Asplenium, X Asplenoceterach, X Asplenosorus, Camptosorus, Ceterach, Diellia, Diplora, Holodictyum, Pleurosorus, Schaffneria.  Acropelta, Acrophorus, Aenigmopteris, Amphiblestra, Arachniodes, Atalopteris, Ataxipteris, Camptodium, Chlamydogramme, Coveniella, Ctenitis, Cyclodium, Cyclopeltis, Cyrtomium, Diacalpe, Didymochlaena, Dryopolystichum, Dryopsis, Dryopteris, Fadyenia, Heterogonium, Lastreopsis, Leptorumohra, Lithostegia, Maxonia, Megalastrum, Nothoperanema, Olfersia, Papuapteris, Peranema, Phanerophlebia, Phanerophlebiopsis, Plecosorus, Pleocnemia, Pleuroderris, Polybotria, Polystichopsis, Polystichum, Pseudotectaria, Psomiocarpa, Pteridrys, Quercifilix, Stenolepia, Stigmatopteris, Tectaria, Tectaridium, Triplophyllum.  Acystopteris, Adenoderris, Allantodia, Anisocampium, Athyrium, Cheilanthopsis, Cornopteris, Cystoathyrium, Cystopteris, Diplaziopsis, Diplazium, Gymnocarpium, Hemidictyum, Hypnodematium, Kuniwatsukia, Lunathyrium, Matteuccia, Onoclea, Onocleopsis, Trichoneuron, Woodsia.  Bolbitis, Elaphoglossum, Lomagramma, Lomariopsis, Peltapteris, Teratophyllum, Thyanosoria.         Arthropteris, Nephrolepis, Oleandra, Psammiosorus.  Araiostegia, Davallia, Davallodes, Gymnogrammitis, Humata, Leucostegia, Parasorus, Rumohra, Scyphularia, Trogostolon.  Blechnum, Brainea, Doodia, Pteridoblechnum, Sadleria, Salpichlaena, Steenisioblechnum, Stenochlaena, Woodwardia.        Azolla. Salvinia.

Order	Family	Genera
Hymenophyllopsidales	Hymenophyllopsidaceae	Hymenophyllopsis
Loxomales	Loxomataceae	Loxoma, Loxsomopsis.
Dicksoniales	Thyrsopteridaceae	Thyrsopteris.
Dicksoniales	Dicksoniaceae	Calochlaena, Cibotium, Culcita, Cystodium, Dicksonia, Lophosoria.
Dicksoniales	Cyatheaceae	Cyathea.
Dicksoniales	Metaxyaceae	Metaxya.
Dennstaedtiales	Dennstaedtiaceae	Blotiella, Dennstaedtia, Histiopteris, Hypolepis, Leptolepia, Lonchitis, Microlepia, Odontosoria, Oenotrichia, Ormoloma, Orthiopteris, Pteridium, Saccoloma, Xyropteris.
Dennstaedtiales	Lindsaeaceae	Isoloma, Lindsaea, Odontoloma, Paesia, Schizoloma, Sphenomeris, Tapeinidium.
Dennstaedtiales	Thelypteridaceae	Amauropelta, Ampelopteris, Amphineuron, Chingia, x-Chrismatopteris, Christella, Coryphopteris, Cyclogramma, Cyclosorus, Glaphyropteris, Goniopteris, Macrothelypteris, Meniscium, Meniosorus, Mesophlebion, Metathelypteris, Nannothelypteris, Oreopteris, Parathelypteris, Phegopteris, Plesioneuron, Pneumatopteris, Pronephrium, Pseudocyclosorus, Pseudophegopteris, Sphaerostephanos, Stegnogramma, Steiropteris, Thelypteris, Trigonospora.
Aspidales	Aspleniaceae
Aspidales	Dryopteridaceae
Aspidales	Woodsiaceae
Aspidales	Lomariopsidaceae
Aspidales	Oleandraceae
Aspidales	Davallaceae
Blechnales	Blechnaceae
Salviniales	Azollaceae
Salviniales	Salvinaceae