Subfamily 48e. Polypodioideae B.K.Nayar, Taxon 19: 234 (1970).

Pleopeltidoideae B.K.Nayar, Taxon 19: 234 (1970).

( Campyloneurum, Microgramma, Niphidium, Pecluma, Phlebodium, Pleopeltis, Pleurosoriopsis, Polypodium, Serpocaulon, Synammia, and the grammitids: Acrosorus, Adenophorus, Calymmodon, Ceradenia, Chrysogrammitis, Cochlidium, Ctenopteris, Dasygrammitis, Enterosora, Grammitis, Lellingeria, Leucostrichum, Luisma, Melpomene, Micropolypodium, Nematopteris, Oreogrammitis, Prosaptia, Radiogrammitis, Scleroglossum, Terpsichore, Themelium, Tomophyllum, Xiphopterella, Xiphopteris, Zygophlebia).

Note:—The number of genera in the grammitid ferns is still in flux. A research group under the leadership of Dr. Tom Ranker is currently studying this complex.