Rhizome filiform, widely creeping or erect, densely clothed with black or brown hairs, or shorter and thicker (1–3 mm. thick). Fronds simple, or up to 4-pinnatifid, glabrous or subglabrous or with marginal hairs; veins free or connected to a sub-marginal vein; false veins sometimes present. Sori marginal, turbinate to obconic, with 2 rounded apical lobes; filamentous receptacle often exserted beyond the sorus. Worldwide: Almost worldwide; mostly tropical and a few temperate areas. Burundi: 1 taxon. |
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