Plant forming a close tight clump to several cm. diam. Rhizomes 1–2 mm. diam., firmly fixed to substratum by ∞ roots; pseudobulbs 6–7–(15) × 3–4 mm., ovoid, smooth when fresh, becoming wrinkled with drying, surface then ± dotted with swollen white cells; membr. scale-lf at first sheathing base of green lf. Lf-lamina to 50 × 5 mm. but us. less, linear-oblong, acute, glab.; petiole short, ill-defined. Fls 1-several; peduncle from base of pseudobulb, c. 1–2 cm. long; floral bracts ± triangular, pedicels very short. Ovary minutely tuberculate. Per. c. 4 mm. long, whitish except labellum. Sepals not hairy; dorsal narrow-ovate; laterals much broader, triangular-ovate, slightly pouched below. Petals much smaller, ovate, obtuse. Labellum "bright vermilion-red with a central yellow line", mobile on long slender claw; lamina oblong-obovate or subhastate, thick and fleshy, lower part with 2 raised ridges, margins strongly recurved at tip. Column short, stout, 2-winged at top.
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