Terrestrial or lithophytic herbs without stems. Pseudobulbs globose or ovoid, 5-12 mm across, often enclosed by membranaceous scales. Leaves basal, solitary, cordate, 2-4 cm long, 2-3.5 cm wide, fleshy, upper surface dark green, lower surface pale, apex acute, base decurrent, continuous into a sheath-like petiole ca. 1-2 cm long, 7-nerved. Peduncle terminal, slender, 2-4 cm long, ridged, rachis 2-4 cm long; bracts erect, ovate-triangular, 1-1.2 mm long, 0.5 mm wide; pedicel and ovary suberect, 1.5 mm long. Flowers numerous, yellowish green, perianth spreading; dorsal sepal ovate-triangular, 1-1.2 mm long, 1 mm wide, acute at apex; lateral sepal ovate, 1.4 mm long, 0.8 mm wide, acute or obtuse at apex, slightly contracted and oblique at base; petals linear or linear lanceolate, 1.1 mm long, 0.2 mm wide; lip ovate-triangular, 1 mm long, 0.8 mm wide, 3-lobed from base, lateral lobes linear, erect, arching, 0.5 mm long, 0.2 mm wide, central lobe triangular, 0.8 mm long, acute or slightly caudate at apex; column short, terete, 0.5 mm long, winged on both sides apically; anther oval, 0.5 mm wide; pollinia ovoid-clavate; stigma nearly orbicular. Capsules ellipsoid, 2.5-4 mm long, pedicel 1.5 mm long.

HUALIEN: Tienhsiang, Chen 1867; Peng 11322; Yuanhai logging road, Su 9517.

Southeastern China. Taiwan, moist rocks at 700-1,800 m near Taroko, Hualien.