A small epiphytic or lithophytic herb to 8 cm. high.. Pseudobulbs clustered, ovoid, 1.5 cm. long, 1 cm. in diameter, 2–3-leaved above.. Leaves erect-spreading, ligulate or linear-ligulate, 5–7 cm. long, 7–9 mm. wide, rounded and slightly unequally bilobed at the apex, green.. Inflorescence erect, unbranched, 3.5–7 cm. high, 3–8-flowered; peduncle terete, 2–3 cm. long, pubescent; bracts broadly ovate or ovate-orbicular, 4–6 mm. long, 3 mm. wide, acuminate.. Flowers erect-spreading, acrid smelling; sepals and petals lime-green with a purple wash at the base; lip white, side lobes with purple spots.. Dorsal sepal lanceolate, acuminate, convex, 7 mm. long, 2.5–2.75 mm. wide; lateral sepals obliquely triangular, 3-nerved, 8–9 mm. long, 5–5.5 mm. wide, acuminate; mentum 4.25 mm. high; sepals all sparsely pubescent on outer surface.. Petals linear-ligulate, 5.5–6 mm. long, 1 mm. wide, acute.. Lip strongly recurved, shortly clawed, 3-lobed in the middle, 7 mm. long, 5 mm. wide; side lobes erect, suborbicular; mid-lobe fleshy ovate-lanceolate, acuminate, 3.5–4 mm. long, 2.75 mm. wide, slightly rugulose-bullate; disc pubescent, with a semi-spherical rugulose almost glabrous callus.. Column short, semi-terete; column-foot 4.3 mm. long.
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