Epiphytic herbs with pyriform or elongate pseudobulbs, the apex usually with 2 broad, plicate, strongly veined leaves. Inflorescences erect or arching, un-branched racemes from the base of the pseudobulbs. Flowers few to many. Sepals subequal, spreading, free, or the laterals connate at the base, forming a short mentum with the foot of the column. Petals subequal to the sepals. Lip 3-lobed, the laterals erect, the mid-lobe small, spreading, entire or 2-lobed; base of lip at-tached to the foot of the column; disk lamellate. Column elongate, semiterete, somewhat arcuate, dilated or subclavate but not winged; base produced into a short foot. Anther terminal, operculate, incumbent, 1-celled; pollinia 2 or 4, waxy.
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