An epiphytic or lithophytic plant 11–25 cm. high.. Pseudobulbs clustered on a short thick rhizome, conical, 1.6–3.5 cm. long, 0.6 cm. wide, 2-leaved at apex, subtended when young by several sheaths, the longest of which may be leaf-bearing.. Leaves ligulate, linear or narrowly linear-lanceolate, 6–16 cm. long, 0.7–1.2 cm. wide, obscurely unequally bilobed at apex.. Inflorescence erect, compressed, racemose, somewhat curved towards apex, 4–14 cm. long, subtended at base by 1–2 long acute sheaths; bracts setaceous, 3–8 mm. long, 0.5 mm. wide, long-acuminate.. Flowers cream-coloured, yellow or yellow-green mostly with a red margin; column and lip red.. Dorsal sepal lanceolate or ovate, concave, acuminate, 4 mm. long, 2 mm. wide; lateral sepals very obliquely ovate-lanceolate, acuminate, 9–11 mm. long, 4 mm. wide; mentum narrow, helmet-shaped, 7 mm. long.. Petals linear-oblong, 2 mm. long, 1 mm. wide, acute.. Lip with a long claw, 3-lobed in apical half, 7.5 mm. long, 4.5 mm. wide; side lobes oblong-rounded, 2 mm. wide; mid-lobe rotund to transversely oval, 3 mm. wide, 2.5 mm. long, apex rounded, papillose.. Column short, fleshy, 2 mm. long.
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