6. Didymoglossum Desvaux, Mém. Soc. Linn. Paris. 6: 330. 1827.
毛边蕨属 mao bian jue shu
Rhizome filiform, long creeping, with dense hairs, rootless. Lamina small, simple to pinnately decompound, entire or setiferous at margin; false veinlets usually oblique, many, or absent. Sori marginal; involucres campanulate with bilabiate mouth; receptacles projecting.
About 19 species: from tropical and subtropical America across Africa to Sri Lanka; five species in China.