Pseudobulbs spaced, oblong-ovoid, 1.5-2 cm, 1-1.2 cm in diam., with a solitary leaf at apex. Leaf subsessile; blade lanceolate, 6.5-8.5 × 1.6-1.8 cm. Scape ca. 12 cm; peduncle with 2 sheaths; umbel 9-or 10-flowered; floral bracts lanceolate, ca. 5 mm. Pedicel and ovary 1.5-2 cm. Dorsal sepal and petals purplish; lateral sepals yellowish green. Dorsal sepal oblong, 10-15 × 5-8 mm, margin denticulate, apex aristate; lateral sepals ovate-lanceolate, 24-32 × 6-7 mm, twisted near base, with their lower edges shortly connate at base. Petals suboblong, 7-8 × 3.5-4.5 mm, adaxially shortly hairy toward apex, margins serrulate-ciliate, apex obtuse, mucronate; lip recurved, ligulate, fleshy, glabrous, base attached to end of column foot by a mobile joint, apex obtuse. Column dilated and subrounded at base, 1.5-1.8 mm; column foot ca. 6 mm, with free part ca. 2 mm; stelidia narrowly subulate, ca. 3 mm. Fl. Jul.
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