Epiphytic or terrestrial herbs up to 6 dm. tall. Leaves'3-10.5 cm. long and 1-3.5 cm. broad, elliptic to broadly lanceolate-elliptic, acuminate; leaf-sheaths prominently verrucose. Inflorescence a single terminal flower; flower small for the genus, purple. Sepals 23-27 mm. long and 7-8 mm. broad, elliptic to elliptic-oblanceolate, acute, apiculate. Petals 20-25 mm. long and 8-10 mm. broad, broadly elliptic to elliptic-obovate, obtuse or acute. Lip 30-35 mm. long and 20-25 mm. broad, quadrate-obovate, emarginate, somewhat narrowed at the base and enfolding the column; column 10-15 mm. long.
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