Herbs, epiphytic. Roots fleshy, glabrous. Stems aggregate, erect, forming ovoid-pyriform pseudobulbs. Leaves apical, sessile, articulate; blade linear-elliptic, leathery. Inflorescences apical, racemes to panicles, flowering only once; spathe absent. Flowers resupinate, pedicellate, simultaneous; sepals subequal; petals similar; lip appressed to column, adnate only at base, callus boat-shaped; pollinia 4, obovoid, laterally compressed, subequal; caudicles 4 in 2 pairs; column winged; rostellum semiorbiculate, entire, abaxially covered with viscous substance. Fruits capsules, ellipsoid, 3-ribbed, 1-locular.
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