Epiphytic herbs. Stem leafy. Leaves coriaceous, linear-falcate, distichous. Inflorescence axillary, racemose, rachis distinctly fleshy, few-flowered, flowers borne in small clusters throughout the year. Flowers resupinate, ephemeral. Sepals and petals free, spreading. Sepals slightly longer than petals, similar in shape. Labellum rigidly attached to base of column, laterally compressed, calceoliform, slightly spurred or saccate, interior ecallose, tuberculose or pulvinate-thickened in front. Column lacking a foot; pollinia two, globose, entire or obscurely sulcate, stipe linear, viscidium distinct; stigma suborbicular; rostellum erect, bifid after removal of pollinarium.