Pseudobulbs tufted, compressed cylindrical, 3-7 cm long, 2-3 cm wide, ca. 1.5 cm thick, covered by many scales; scales ovate, sulcate abaxially. Leaves 2-4, nearly distichous, stiff, coriaceous, linear-oblanceolate, 30-40 cm long, upper part flat and expanded, 2-3.5 cm wide, apex acute, basal part gradually slender and becoming conduplicate, midrib impressed on upper surface, elevated on lower surface. Peduncle from axil of scales, slender, apex reflexed, ca. 12 cm long, pale green basally, reddish apically, stellate pilose, with remote scales; scales ovate, 2 mm long, apex acute, densely stellate pilose; rachis 57 cm long; pedicel and ovary 6 mm long, 3-ridged, densely stellate pilose. Flowers, numerous, crowded, pale brown, ca. 5 mm long, stellate pilose outside; dorsal sepal ovate-oblong, ± thickened, concave, 3 mm long, 1.5 mm wide, apex rounded, base truncate, with dense reddish hairs outside; lateral sepals thickened, obliquely ovate, 2.5 mm long, 3 mm wide, apex obtuse, free, base truncate and adnate to foot of column forming long saccate mentum, reddish hairy outside; petals obliquely oblong, nearly glabrous, 3 mm long, 1.5 mm wide, apex rounded, base truncate; lip more or less cymbiform, 4 mm long, 1.5 mm wide, glabrous, inconspicuously lobed, apex obtuse, reflexed, base adnate to base of column foot, margin strongly crenulate; column 1 mm long, apex truncate, base developed into long foot, foot 3 mm long, deeply sulcate on ventral surface; anther hood-like, 2-celled; pollinia 8, pyriform, in 2 pairs.

TAITUNG: Chinghuiying, Sawada s. n. May 1931; Su 109*.

The Philippines, Malaysia, Sumatra, Java and Borneo. Taiwan, forests in the south at ca. 1,000 m.