Slender, erect, epiphytic or terrestrial herbs up to about 5 or 6 dm. tall. Stems covered with the amplexicaul leaf-sheaths, simple or rarely branched. Leaves 8-16 cm. long and 1.3-5 cm. broad, lanceolate or lanceolate-ovate, acuminate, coriaceous. Inflorescence sessile, 1-flowered. Sepals 5.2-5.5 cm. long and 1.2-1.5 cm. broad, lanceolate, acute, greenish on the outer surface, very near "brick red" on the inner surfaces. Petals about 4.7 cm. long and 1-1.2 cm. broad, elliptic-lanceolate, acute, reflexed, washed "brick red" with lighter margins and dorsal median line, the inner surface "brick red" with a white border. Lip about 4 cm. long, more or less tubular but flaring at the apex, the disc "brick red" with a median white stripe and the lateral margins white toward the base, base of the lip "Acajou red" within.-Description from the type specimen and ample field notes.
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