Erect, caespitose or repent, epiphytic herbs up to about 40 cm. tall. Stems indurated, covered toward the base with sub-scarious sheaths and above by the amplexicaul leaf-sheaths, bearing 2-4 leaves above. Leaves 7-30 cm. long and 1-4.5 cm. broad, ligulate or ligulate-oblong, obtuse, apex bilobed, keeled dorsally along the mid-nerve. Inflorescence up to 30 cm. long, with up to 15 flowers, the peduncle enveloped in the imbricated floral-bracts; bracts 15-65 mm. long and 10-30 mm. broad when spread out, strongly cucullate, obtuse; flowers variable in size, greenish or the lip purplish. Dorsal sepal 15-25 mm. long and 3.5-6 mm. broad, lanceolate, acute. Lateral sepals 15-25 mm. long and 5-11 mm. broad, lanceolate to ovate-lanceolate, acute, oblique. Petals 14-20 mm. long and 1.5-2.5 mm. broad, linear to linear-oblanceolate, acute. Lip unguiculate; the claw adnate to the column; lamina 12-25 mm. long and 14-28 mm. broad, cordate-reniform, usually retuse or bilobed at the apex, fleshy, provided with a longitudinal callus-thickening, entire or serrulate.
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