Plants epilithic, small. Rhizomes erect, short, apex densely scaly; scales brown, lustrous, ovate-lanceolate or lanceolate, entire. Fronds clustered or subclustered, usually diverging; stipe short, not articulate, brittle, usually lower parts persistent; lamina 1-pinnate-pinnatifid, lanceolate, much longer than stipe, herbaceous, glabrous or glandular hairs sparse. Veins free, pinnate, not reaching laminar margin. Sori small, orbicular, consisting of 6-12 sporangia, medial or submarginal; indusia inferior, spherical or bladderlike, completely wrapping sporangia, tearing apically at maturity. Spores ellipsoid, monolete, perispores corrugate, exospore glabrous on surface. x = 33.

One species: Asia.