萼脊兰属 e ji lan shu

Authors:Authors: Xinqi Chen & Jeffrey J. Wood

Herbs, epiphytic, monopodial. Stems short, with several leaves. Leaves nearly basal, distichous, flat, slightly fleshy or thickly leathery, jointed and shortly sheathing at base. Inflorescence racemose, axillary, laxly several flowered; floral bracts broadly ovate, shorter than pedicel and ovary. Flowers opening widely, medium-sized. Sepals and petals free, similar; lateral sepals adnate to column foot. Lip attached at base to column foot by a movable joint, spurred, 3-lobed; lateral lobes erect; mid-lobe recurved; spur long, parallel to mid-lobe, narrowed distally. Column rather long, base with a short foot, or footless; stigma large, deeply concave, near middle of column; rostellum large, bilobed; pollinia 2, waxy, subglobose, cleft, attached by a common linear stipe to a large viscidium.

Two species: China, Japan (Ryukyu Islands), Korea; two species (one endemic) in China.