Herbs, terrestrial, small, with subterranean pseudobulbs. Pseudobulbs cormlike, often persisting and forming a chain, few noded, with a solitary leaf and a solitary inflorescence at apex. Leaf blade elliptic to broadly ovate, plicate, base abruptly contracted into a long petiole-like stalk, apex acute. Inflorescence erect, terminal, with 2 or 3 tubular sheaths, 1-flowered. Flower terminal, rather large, resupinate. Sepals and petals free, spreading, similar. Petals slightly wider and shorter than sepals; lip relatively large, 3-lobed, spurred at base; spur ± hornlike, thick and large, attenuate toward apex; disk with lamellae. Column erect, incurved, winged; anther incumbent; pollinia 4, in 2 pairs, waxy, directly attached to a subsquare viscidium.
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