Epiphytic herbs with elliptic-ovoid, tapering, laterally compressed, smooth or ridged pseudobulbs 6-9 cm. tall and 2.5-3 cm. wide, the bases enveloped in several coarsely fibrous bracts, the apex (during the growing season) with 3-4 elliptic-lanceolate, plicate, acute or acuminate, deciduous leaves; the apex of the old pseudobulbs armed with 2 short, sharp spines; roots fibrous, lanuginose. Inflorescences 1 to several erect, single-flowered scapes 9-12 cm. tall, from the base of the pseudobulbs, produced after the leaves have fallen or concurrently with the flush of new growth. Flowers pseudo-campanulate, relatively large. Sepals spreading, subequal, the apices strongly recurved, pale green, often spotted with pink, the dorsal sepal free, elliptic-lanceolate, acute, often minutely apiculate, 2.8-3.2 cm. long and 1.2-1.5 cm. wide, lateral sepals adnate at the base to the foot of the column, forming a short mentum, from the oblique base lanceolate, acute, often minutely apiculate, 2.8-3.2 cm. long and 1.0-1.4 cm. wide. Petals subequal to the sepals, spreading, the apices strongly recurved, white, often spotted pink, elliptic-oblanceolate, acute, 2.4-2.6 cm. long and 1.4-1.6 cm. wide. Lip conspicuously 3-lobed, about twice as long as broad when spread out, narrowed at the base and articulated with the foot of the column, white, usually spotted pink, 2.8-3 cm. long and 1.4-1.6 cm. wide when spread out, lateral lobes erect, the anterior margins obscurely emarginate at the obliquely acute apices, mid-lobe subquadrate or ovate, obtuse, with a basal constriction, the apex strongly reflexed; disk with an elongate, acute, concave callus. Column semiterete, somewhat arcuate, 12-14 mm. long, produced at the base into a foot.
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