Photo: JE. Burrows
Description of the genus
Rhizome widely creeping, covered with dark hairs, roots absent, root-like shoots present. Fronds simple, sometimes lobed to pinnatifid, venetion catadromous. Sori often immersed in the laminae, tubular to campanulate, involucre bilibiate or truncate to dilate, receptacles exserted
Derivation of name: Didymus: double, glossum: tong; some species have a bilabiate soral aperture
Comment: This genus was included in the widely circumscribed genus Trichomanes.
Worldwide: C. 30 species, pantropical distribution
We have 7 taxa in the database for Didymoglossum.