FLORA OF VIETNAM Orchidaceae Didymoplexiopsis khiriwongensis Seidenf.
N.Vietnam, Ha Tinh Prov., Huong Son Distr., Son Hong Municipality, around point 18°34′06′'N, 105°11′40′'E. Heavily logged primary broad-leaved evergreen dry forest on steep mt slopes and along ridge composed with shale at elev 350-450 m a.s.l.
Small ground achlorophyllous gray-yellowish saprophyte. Flowers white, light fragrant, lip with white, finely gray spotted callus above and with yellow-brown spot below. Occasional.