FLORA OF VIETNAM Orchidaceae Ornithochilus difformis (Wall. ex Lindl.) Schlechter
Northern Vietnam, Ha Tinh Prov., Huong Son Distr., Son Kim Municipality, in the vicinity of Rao An village, around point 18°22′00′'N, 105°13′13′'E. Primary evergreen lowland seasonal broad-leaved forest on granite along rocky river valley at 240-260 m a.s.l. Epiphyte on mossy trees along river. Not common.