Hymenophyllum kuhnii C. Chr.

kuhnii: named after Maximillian Kuhn a German physician and botanist.

Rhizome wiry and thin, widely creeping, set with persistent ventrally attached hairs. Fronds spaced apart. Stipe up to 6 cm long, without hairs, narrowly winged. Lamina usually oblong to narrowly elliptic in outline, 3-60 × 1.5-7 cm, 2- or 3-pinnatifid, finely dissected into up to 100-180 lobes per pinnae, hairless. Ultimate lobes set close together or overlappinglinear, apices rounded, margin entire. Rhachis winged. Sori along the costae of the pinnae on the innermost lobes, several per pinna, broadly obconic to rounded in shape, soral valves entire.

East, central and west Africa, south-central Africa (according to Crouch et al. not in South Africa). Also Madagascar.