Aceras R. Br, 1813

D. M. Moore (ed.), 1980, CCIII Orchidaceae, Flora Europaea, Vol 5: Alismataceae to Orchidaceae, Camebridge: Cambridge University Press, pp. 325-350 : 342

25. Aceras R. Br .1.

Tubers 2, ovoid to subglobose, entire. Stem with numerous leaves. Flowers in a dense spike. Perianth-segments all connivent to form a semi-globose galea over the column. Labellum shaped like a man, with linear lateral lobes at base and a long middle lobe distally divided into two slender segments. Spur absent. Column very short. Rostellum minute. Viscidia 2, more or less globose, often coherent, in one simple bursicle.