Diacrium
(from dia, through, and akris, a point; in allusion to the sheaths on the stalk). ORD. Orchideae. Of this genus four species have been described: they are stove, epiphytal Orchids, natives of Mexico, Central America, and Guiana. Flowers showy, loosely racemose, shortly pedicellate; sepals sub-equal, free, spreading, rather thick, petaloid; petals somewhat similar; lip spreading from the base of the column, nearly equalling the sepals, the lateral lobes spreading or reflexed, the disk elevated between the lateral lobes, two-horned above; column short and broad, slightly incurved; pollen masses four; peduncle terminal, simple, with paleaceous sheaths. Leaves few, articulated with the short sheaths. Stem fleshy, scarcely thickened into an elongated pseudo-bulb. Only one species calls for mention. For its successful cultivation, it requires a light situation in a very moist stove. D. bicornutum (two-horned). The correct name of the plant described on p. 512, Vol. I., as Epidendrum bicornutum.