Caespitose or repent, epiphytic herbs up to 50 cm. tall. Stems fractiflex to straight, covered with the pergameneous, amplexicaul, occasionally infundibuli-form leaf-sheaths. Inflorescence a short, few-to many-flowered, subumbellate raceme; flowers greenish or yellowish, long-pedunculate. Leaves 2-12 cm. long and 0.5-3.5 cm. broad, variable, from linear-oblong to elliptic-oval, obtuse. Dorsal sepals 14-35 mm. long and 2-4 mm. broad, linear-elliptic to lanceolate or ob-lanceolate, acute. Lateral sepals 12-35 mm. long and 3-6 mm. broad, elliptic to oblanceolate, acute, oblique. Petals 7-30 mm. long and 1-5 mm. broad, filiform to linear to oblanceolate, acute. Lip 7-18 mm. long and 12-30 mm. broad, unguiculate; claw adnate to the column; lamina transverse, reniform, broader than long, obscurely to prominently 3-lobed; mid-lobe usually bifid and longer than the lateral lobes.
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