Japan Flora: Pseudobulbs globose, 6- 12 mm. long; leaves 2, ovate, 3-8 cm. long, 2-4 cm. wide, obtuse or subacute, rounded at base, the petioles sheathing at base; peduncles 8-20 cm. long, erect; racemes 3-8 cm. long, 10- to 20-flowered; flowers pale green or dark purple; bracts deltoid, subacute, spreading, 1-1.5 mm. long; sepals linear, 10- 12 mm. long, subacute, the lateral ones spreading; petals reflexed, filiform, 8-10 mm. long, acute; lip 6-8 mm. long, about 2/3 as long as the petals, abruptly reflexed near the base, the limb spreading, narrowly ovate-oblong, with slightly recurved margins, caudate; column about 2 mm. long, almost wingless. May-July. Woods;

Hokkaido, Honshu, Shikoku, Kyu-shu. Korea,

var. shichitoana Ohwi. Plant smaller; sepals about 7 mm. long; lip 6 mm. long; Honshu