Repent epiphytic herbs up to about 4 dm. long. Stems small, branched, often profusely so, usually consisting of a principal stem and smaller elongated branches, covered with the verrucose or rugose amplexicaul leaf-sheaths. Leaves 0.6-8 cm. long and 0.1-0.6 cm. broad, linear or linear-oblong, obtuse, apex usually unequally bilobed. Inflorescence of terminal few-flowered racemes; rachis fractiflex. Dorsal sepal 5-8 mm. long and 1.2-2 mm. broad, lanceolate, acute. Lateral sepals 5-8 mm. long and 1.2-2.5 mm. broad, lanceolate, acute. Petals 4.5-7 mm. long and 0.5-1 mm. broad, linear-elliptic or linear, acute. Lip unguiculate; claw adnate to the column; lamina 3.5-5 mm. long and 2-2.5 mm. broad, triangular-cordate or narrowly so, fleshy, the basal auricles usually erect; the disc appearing excavated, provided with a small trilobulate callus at the base.
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