Japan Flora: Pseudobulbs elongate, cylindric, terete, the internodes to 5 cm. long; leaves 3, obliquely ovate to elliptic, 5-15 cm. long, 3-8 cm. wide, abruptly acuminate, short-sheathed at base; peduncles terminal, 20-30 cm. long, erect; racemes terminal, manyflowered; bracts narrowly ovate, 1-nerved, membranous, reflexed, 2-3 mm. long, acute; flowers brownish purple; sepals linear-oblong, obtuse, the lateral gradually spreading, 8-10 mm. long; petals linear-oblong, as long as tlie lateral sepals; lip cuneate-obovate, rounded at apex, gradually recurved in upper part, 8-10 mm. long, 5-6 mm. wide, shallowly grooved at tip, entire, the appendages at base elliptic, obtuse; column about 5 mm. long, narrowly winged at apex. June. Woods in mountains;

Kyushu. Ryukyus, Formosa, and China.

var. hachijoensis (Nakai) Ohwi. Flowers smaller than in the typicd phase. June-Aug. Honshu (Izu-shi-cliito Isis.).