rhizome creeping, stout; pseudobulbs ovoid, tetragonal, 3/4–1 1/4 in. long, 2-leaved; leaves elliptic-oblong, obtuse, coriaceous, 1 1/2–2 in. long, 1/2– 3/4 in. broad; scapes suberect, 4–6 in. long, with 3 or 4 oblong obtuse sheaths below the inflorescence; rhachis flattened, 2–4 in. long, 1/3 in. broad, pale green, densely spotted and marbled with dusky-brown; triangular-ovate, acute, ultimately reflexed, 1/6 in. long; flowers rather numerous, dull purple, becoming green spotted with purple at the base of the sepals; sepals papillose, dorsal narrowly lanceolate-linear, acute, 1/3 in. long, lateral shorter, falcate, with broadly ovate base and narrowly acute apex; petals falcate, reflexed, narrowly linear, acute, 1/6 in. long; lip sharply reflexed, base broadly orbicular, then rapidly narrowed into a broadly linear obtuse apex, grooved on the upper half, with two keels underneath; column short, with broad wings, terminating upwards in a pair of short teeth. null