Rhizomes creeping, 0.5 mm in diam., without pseudobulbs. Leaves minute, sessile, elliptic or ellip-tic-orbicular, 5-6 mm long, 3-4.5 mm wide, acute or obtuse, fleshy, glabrous, sometimes with minute membranaceous sheaths at base. Scapes axillary, erect, slender, 1-3 cm long, sheath few near base; bracts elliptic, acute. Flowers 2, yellowish white, sometimes with reddish lines or spots; sepals membranaceous, glabrous, 3-nerved, dorsal one oblong, 2.5-3.8 mm long, 1-2 mm wide, lateral ones obliquely triangular elliptic, 2.6-4 mm long, 1.5-2 mm wide; petals oblong, 1.3-2.4 mm long, 0.6-1 mm wide, 1-nerved; lip attached to apex of column foot, thin, not horn-like, tinged with purple, ovate-trian-gular, 2-2.4 mm long, 1 mm wide, apex rounded to obtuse, base decurrent into a long claw, entire, glabrous, membranaceous, 3-nerved; column 0.8-1 mm long, with very short stylids at apex; foot 2 mm long; anther triangular conic, white, with a reddish patch; pollinia 2, ovoid to ellipsoid.

TAIPEI: Kaposhan, Suzuki 4548. HSINCHU: Chunan, Segawa s. n. Jun 1933. TAICHUNG: Lishan, Lin 406; Su & Chen 9286; Derchi to Chingshan, Ying s. n. May 1988.

Endemic, known only from a few collections in northern and central Taiwan.