Dipteris Reinw.

Plants evergreen, medium-sized to large, terrestrial or epilithic. Rhizomes long creeping, covered with coarse, very long-tapering, non-clathrate bristles resembling scales in dried material. Stipe non-articulate, remote; lamina divided into 2 subequal fan-shaped halves, each with deeply incised lobes; main veins repeatedly forked, remainder of veins finer and copiously anastomosing, with free included veinlets in areoles. Sori numerous, small, orbicular, borne on minor veins over most of abaxial surface of lamina; hairlike paraphyses sometimes present among sporangia; spores monolete, 64 or less per sporangium, pale and smooth. x = 33.