An epiphytic herb, 25–33 cm. high.. Pseudobulbs tightly clustered, from a creeping rhizome, narrowly cylindric, 11.8–13 cm. long, 2.5 mm. in diameter, clothed in 1–3 membranous basal sheaths.. Leaf linear, fleshy, cuneate below, retuse above, 11.7–21 cm. long, 2.5–6.5 mm. broad, articulated 3 mm. above the pseudobulb apex.. Inflorescence shorter than the leaf, unbranched, 6.2–7 cm. long; peduncle slender, 5–6 cm. long, lacking a basal sheath; bracts triangular, amplexicaul, 1.5–2 mm. long.. Flowers white.. Dorsal sepal triangular-ovate, shortly apiculate, 6–8.7 mm. long, 2.5–3.6 mm. broad; lateral sepals obliquely triangular, 7–7.5 mm. long, 6.4–7 mm. broad; mentum conical, 6–6.5 mm. long.. Petals obovate-lanceolate, obtuse, 6.5–7 mm. long, 2–2.5 mm. broad.. Lip strongly recurved, sessile, distinctly 3-lobed in the basal half, 9–9.5 mm. long, 6.5–7 mm. broad; side lobes erect, triangular-ovate; mid-lobe subquadrate, truncate or retuse, bullate, glandular-pubescent in basal two-thirds, 4.5–5 mm. long and broad.. Column subterete, 2–2.6 mm. long; foot 6–6.5 mm. long; pollinia subquadrate-globose.
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