Roeperocharis alcicornis Kraenzl. in H.G.Reichenbach, Xenia Orchid. 3: 105 (1892).
Plant slender, 1 ft. high. Tuber globose, 7 lin. long. Leaves linear-lanceolate, acuminate, with about three obtuse sheaths below. Spikes 3 1/2 in. long, lax, many-flowered. Bracts ovate, acuminate, a little longer than the ovary. Pedicels 6 lin. long. Flowers yellow marked with brown. Dorsal sepal very broadly ovate, nearly orbicular, suddenly acute; lateral larger than the dorsal, semiovate, suboblique, acute, reflexed. Petals broader than long, very oblique, cuneate-obovate, apiculate, with the upper margin irregularly dentate and undulate. Lip simple, from a dilated base, narrowly linear, 3 1/2 lin. long, shorter than the pedicels; spur slender, recurved at the apex, inflated, obtuse, curved. Column very broad; anther arms very large, produced in front into acuminate, foliaceous appendages. Stigmatic processes similar, diverging, subclavate, subfalcate, with narrow stigmatic margins.
NW. & C. Ethiopia