Asplenium sammatii Kuhn
Athyrium sammatii (Kuhn) Tardieu
Asplenium ottonis Kuhn
Asplenium crenato-serratum J.Bommer ex H.Christ

Rhizome erect; rhizome scales lanceolate in outline, formed of dark-walled cells, edges with curved extensions. Fronds monomorphic, tufted, subcoraceous. Stipe 15-30 cm long, thick, blackish at the base and bearing scales, reddish above, quadrangular. Lamina pinnate, lanceolate in outline, 40-50 x 25-30 cm; pinnae 13-15 x 2-2.5 cm, subsessile or shortly stalked, apex long tapering, base subequal base, truncated, margin serrulate, with sharp teeth; veins two or threeforked. Sori sori elongated, diplazioid, almost all of the same thickness, starting near the costa and almost reaching the margin; indusium brown, slim.

Shaded forest, on banks of stream and marshes at low altitude.

See African distribution.

Benin, Cameroon, Central African Republic, Congo, Dem. Republic of Congo, Equatorial Guinea (incl. Bioko), Gabon, Ghana, Guinea, Ivory Coast, Liberia, Nigeria, Sudan and South Sudan.

Terrestrial.