Rhizome creeping or erect, covered in scales. Stipe slender, scaly. Lamina membranous, many times pinnately lobed or pinnate, hairy and scaly; rachises slender, grooved; groove not continuous between rachis and pinna midribs. Sori elongate along one side of vein, elongate, single or a few paired sori at base of pinnae; indusium attached to vein on one side, ellipsoid to oblong, papery, not inflated, free edge toothed.
About 30 species, mainly from the Pacific region; only 1 species occurring in Australia.