Caespitose epiphytic herbs up to about 1 m. tall. Stems slender, simple, leafy above, naked below. Leaves 6-20 cm. long and 1.5-4.5 cm. broad, oblanceolate, acute, coriaceous. Inflorescence 1 or more, 1-to 3-flowered terminal racemes borne on a more or less elongated peduncle, the peduncle covered at the base with several imbricated bracts; flowers relatively large, sepals and petals greenish, lip orange. Dorsal sepal 26-30 mm. long and 3-5 mm. broad, oblanceolate, acute. Lateral-sepals 22-32 mm. long and 5-7 mm. broad, oblanceolate, acute, sometimes obtuse. Petals 22-30 mm. long and 2-3 mm. broad, linear-oblanceolate, obtuse. Lip unguiculate; the long claw adnate to the column; lamina 13-17 mm. long and 15-22 mm. broad, retuse, transversely oblong or subquadrate to suborbicular-flabellate, entire (or obscurely 3-lobed), crenulate, dentate or lacerate; disc pro-vided with 2 short lamellate calluses at the apex of the column and a longitudinal 1-to 5-ridged callus-thickening along the median line, from base to apex.
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