Hymenophyllum Sm.

24 species native AUST.; Qld, N.S.W., Vic., Tas.

Small epiphytic or terrestrial ferns. Rhizomes creeping, narrow glabrous or clothed with sparse hairs. Fronds thin, simple and once or more rarely twice forked, or pinnately divided; margins entire or with minute teeth. Sori terminal on the ultimate segments or close to the main rhachis on short branches on the upper side of the primary pinnae. Involucre divided to the middle or base. Receptacle included or very slightly exserted. Sporangia large, sessile.