Overview
Caespitose terrestrials. Pseudobulbs ovoid, subtended by foliaceous bracts with the blades quickly deciduous, usually armed with spines at the apex. Leaves several, large, plicate, elliptic, acuminate, petiolate. Inflorescences basal one-flowered scapes, the bracts conspicuous. Flowers waxy, fleshy, globose. tulip-shaped. Sepals and petals free, subsimilar. Lip three-lobed, flexibly hinged to the column foot, with a central callus. Column stout, somewhat arching and club-shaped, with a long foot and wings; pollinia 4, in two tightly appressed unequal pairs, on a common linear stipe and viscidium.