Epiphytic herbs with stout, pyriform pseudobulbs which are nearly black and covered with innumerable fine wrinkles, the apex with 2-3 broadly lanceolate, acute or shortly acuminate, subcoriaceous, plicate, strongly veined leaves. In-florescences erect or arching, unbranched racemes 30-45 cm. long, produced from the base of the pseudobulbs. Flowers few to many. Sepals subequal, free, spread-ing, dull orange-yellow with red-purple margins, the dorsal sepal linear-lanceolate, obtuse or shortly acute, 1.6-1.8 cm. long and .5-.6 cm. wide, laterals elliptic-lanceolate, acute, 1.6-1.8 cm. long and .5-.6 cm. wide. Petals subequal to the sepals, similarly colored, lanceolate, acute, 1.5-1.7 cm. long and .35-.4 cm. wide. Lip 3-lobed, 1.5-1.8 cm. long and .9-1.1 cm. wide when spread out, the lateral lobes rounded, dull orange-red spotted dark purple, the mid-lobe spreading, emarginate or 2-lobed at the apex, white spotted dark purple; disk with erect fleshy keels. Column 9-11 mm. long, subclavate, somewhat arcuate, greenish.
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