An epiphyte with an elongate, bilaterally compressed stem 7–15 or more cm. long.. Leaves distichous, oblanceolate or oblong, unequally roundly or obtusely bilobed at the apex, 9–11 cm. long, 1.6–2.3 cm. wide, twisted at the base.. Inflorescences 7.5–11.5 cm. long, 3–5-flowered; peduncle 3–3.5 cm. long; rhachis slightly fractiflex; bracts broadly ovate, obtuse, 1.5–2 mm. long.. Flowers yellow-green; pedicel and ovary 13–16 mm. long, articulated 1 mm. above the base of the pedicel.. Dorsal sepal lanceolate, long-acuminate, 13.5–19 mm. long, 3.7–3.8 mm. wide; lateral sepals similar, 13.9–17.7 mm. long, 2.9–3.2 mm. wide.. Petals lanceolate, acuminate, 11.5–13 mm. long, 2–2.5 mm. wide.. Lip 3-lobed, 12–13 mm. long, 4.5–5.6 mm. wide; side lobes erect, rounded; mid-lobe recurved, linear, acuminate, 6.5 mm. long.. Spur sigmoid, 14.5–16 mm. long.. Column 1.3–2 mm. long.
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