Dwarf, epiphytic herbs 4-9 cm. tall, with elliptic oblong, compressed, monophyllous pseudobulbs 10-15 mm. long and 5-8 mm. wide, the bases with 2-3 foliaceous bracts, the leaves and pseudobulbs often reddish brown. Leaves and bract blades elliptic-lanceolate to ligular, obtuse to subacute, coriaceous, 2-6 cm. long and 0.6-1.5 cm. wide. Inflorescences 1 or 2 slender, erect, few-flowered racemes or shortly branching panicles much exceeding the leaves in length, 4-25 cm. long. Flowers small, averaging about 1 cm. in diameter. Sepals of about equal length, yellow striped or spotted reddish brown, the dorsal sepal free, elliptic-lanceolate, shortly acuminate, deeply concave, 3-5 mm. long and 1.5-2 mm. wide, the lateral sepals connate to above the middle, forming a single bifid segment below the lip, 4-6 mm. long and 2.5-3 mm. wide, with 2 distinct keels on the lower surface. Petals subequal to the dorsal sepal and similarly colored, elliptic-oblong, subacute, with distinct central keels on the reverse surfaces, 3-5 mm. long and 2-3 mm. wide. Lip entire, slightly concave, yellow with a red or reddish brown spot at the base, oblanceolate, obtuse or sometimes slightly retuse, the blade with an obscure median constriction, 5-8 mm. long and 2.5-4 mm. wide, the disk with an erect, bicarinate, fleshy callus. Column 1-1.5 mm. long, semiterete, without lateral wings but with 2 short, porrect teeth below the stigma.
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