166. Hygrochilus Pfitzer in Engler & Prantl, Nat. Pflanzenfam. Nachtr. 1: 112. 1897.
湿唇兰属 shi chun lan shu
Authors: Xinqi Chen & Jeffrey J. Wood
Herbs, epiphytic, monopodial. Stems rather short, 3-5-leaved. Leaves distichous, flat, rather large, base sheathing, jointed. Inflorescences lateral, arching or nearly spreading horizontally, unbranched, laxly few to many flowered. Flowers large, showy, opening widely. Sepals and petals free, similar, usually ± dorsally carinate. Petals slightly shorter and wider; lip thickly textured, adnate at base to column by a movable joint, 3-lobed; lateral lobes erect, small; mid-lobe larger, abaxial midvein thickened and beaklike at apex; disk saccate between 2 lateral lobes, with a keel extending from base to apex. Column arcuate, rather long, footless, with stelidia; rostellum long and narrow; pollinia 4 in 2 pairs, waxy, subglobose, unequal, attached by a common spatulate stipe to a suborbicular viscidium.
One species: China, NE India, Laos, Myanmar, Thailand, Vietnam.