Pseudobulbs close, ovoid-conic, 2.5-3 cm, 8-15 mm in diam., with 1 leaf at apex. Leaf shortly petiolate; blade narrowly oblong, 10-17 × 1.3-3 cm, leathery, base contracted into petiole, apex subacute. Scape from base of pseudobulb, ca. 12 cm, slender; raceme elongate, sparsely 10-flowered; peduncle with 2-4 sheathlike bracts; floral bracts lanceolate, 6-9 mm. Pedicel and ovary shorter than floral bracts. Flowers yellowish green with pale red spots. Dorsal sepal ovate-lanceolate, 6-8 × ca. 2.5 mm, densely ciliate, apex acuminate and recurved; lateral sepals obliquely ovate-lanceolate, 7-11 × 2-3 mm, base adnate to column foot, apex long caudate. Petals ovate, 2-4 × 1.5-2 mm, densely ciliate; lip ligulate, ca. 2.5 × 1.5 mm, adaxially with 3 ridges (central 1 yellow, lateral 2 yellowish white), attached to end of column foot, immobile. Column white, ca. 2 mm, with a foot ca. 2 mm; stelidia slender. Fl. Jul-Sep.
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