Small, epiphytic herbs with oblong, compressed, monophyllous pseudobulbs up to about 2.5 cm. long and 1.0 cm. wide, the bases enveloped in several imbricating bracts, the uppermost 1 or 2 of which are conspicuously foliaceous. Leaves and bract blades ligular, obtuse to subacute, coriaceous, up to about 18 cm. long and 0.8-4 cm. wide. Inflorescences 1 or 2 arching or pendulous, densely flowered racemes up to about 30 cm. long but often considerably less, produced from the bases of the pseudobulbs. Flowers small, white, sometimes spotted yellow, on filiform pedicels, subtended by narrow, acuminate bracts. Sepals subequal, more or less spreading, the dorsal sepal free, linear-lanceolate, subacute, concave, somewhat inflexed, 3-6 mm. long and 1-2 mm. wide, the lateral sepals usually more or less connate, rarely free, forming a single bifid segment under the lip, 3-5 mm. long and 1-2 mm. wide, rather obliquely subacute. Petals subfalcately linear-lanceolate, acute, 2.5-5 mm. long and 1-1.5 mm. wide. Lip clawed at the base and continuous with the base of the column, the lamina narrowly triangular, acuminate, 3-5 mm. long and 1-2 mm. wide at the base, the disk usually with a distinct carinate callus. Column slender, erect, terete, 2-3 mm. long, the base without a foot.
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