Epiphytic herbs with elongate, often branching, more or less pendulous, rhizomatous stems enveloped in closely imbricating, persistent, brown, papery bracts. Pseudobulbs approximate, inserted at an acute angle on the stems and more or less imbricating, linear-elliptic, strongly ancipitous, 4-5 cm. long and 2-2.5 cm. wide, the rather oblique truncate apex with a solitary leaf. Leaves ligular, coriaceous, persistent, acuminate, 25-40 cm. long and 1.5-2 cm. wide. Inflorescences short 1-flowered scapes 3-5 cm. long from the bract axils of the flush of new growth. Flowers few to about 8, relatively small, apparently produced more or less simultaneously rather than in successive flowerings as in some of the allied species. Sepals subequal, free, spreading, creamy white, ligular, acuminate, 2-2.5 cm. long and .4-.5 cm. wide, the laterals adnate to the column foot, forming a short subacute mentum. Petals subequal to the sepals, creamy white, lanceolate, acute to acuminate, 1.8-2 cm. long and .4-. 5 cm. wide. Lip concave, slightly arcuate, obscurely 3-lobed, yellow; more or less elliptic-oblanceolate, acute, when spread out, 12-15 mm. long and about 5 mm. wide, contracted at the base and articulated with the foot of the column, the lateral lobes erect, the mid-lobe about 1/3 the total length of the lip, ovate, acute, somewhat thickened; disk with an elongate, ligular, fleshy callus. Column semi-terete, lightly arcuate, 7-9 mm. long, somewhat dilated and obscurely auriculate at the apex, the base produced into a distinct foot. Anther terminal, operculate, incumbent, obscurely 2-celled.
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