Erect or pendulous, epiphytic herbs with elongate, sometimes branching stems. Pseudobulbs elliptic-ovoid, ancipitous, monophyllous, 2.5-4 cm. long and 1.5-2 cm. wide, very distantly and obliquely inserted on the canes, the lower half covered by the conduplicate bases of the 3-5 long-foliaceous bracts; the long internodes naked or enveloped in the persistent bases of the imbricating bracts. Leaves of the apex of the pseudobulb and those of the basal long-foliaceous bracts sub-coriaceous, ligular, acute or obtuse, 8-30 cm. long and 1.2-2.2 cm. wide. Inflorescences slender, 1-flowered scapes 3-5 cm. long, produced from the bract axils of the elongate, complanate flush of new growth. Flowers of moderate size. Sepals free, subequal, spreading, yellowish green, lanceolate, acute, 2-2.5 cm. long and 4-6 mm. wide, the laterals adnate to the foot of the column, forming a short, rounded mentum. Petals subequal to the dorsal sepal and similarly colored, obliquely lanceolate, acute to acuminate, 15-18 mm. long and 3.5-5 mm. wide. Lip conspicuously 3-lobed, red or marked with red, 10-12 mm. long and 10-12 mm. wide when spread out, the base contracted and articulated with the foot of the column, the lateral lobes subfalcate, acute, erect in natural position and somewhat incurving over the column, the apices projecting, the mid-lobe ovate, acute, about 1/2 the total length of the lip; disk with a short, broad, truncate, fleshy callus about 1/3 the length of the lateral lobes. Column very short, stout, about 5 mm. long, produced at the base into a short foot.
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