Herbs, epiphytic or lithophytic. Rhizome creeping. Pseudobulbs borne close together, prostrate basally, cylindric, 1-leaved. Leaf lanceolate-elliptic, obtuse, thinly leathery, petiolate. Inflorescence synanthous to proteranthous, 1-flowered, erect; floral bracts persistent, shorter than ovary. Flowers white, lip with 2 purple spots at base and with a yellow blotch at base of mid-lobe, resupinate. Sepals free, linear-lanceolate; lateral sepals abruptly pouchlike and basally dilated. Petals linear; lip basally spurred, 3-lobed, ecallose; spur concealed by bases of lateral sepals. Column dilated and flattened apically, without stelidia, foot absent; pollinia 4, broadly obovoid, caudiculate; stigma cup-shaped. Capsule ellipsoid.

● One species: China.

(Authors: Chen Xinqi (陈心启 Chen Sing-chi); Jeffrey J. Wood)