FLORA OF VIETNAM Orchidaceae Juss. Phaius longicruris Tsi
N. Vietnam, Thanh Hoa prov., Ba Thuoc distr., Eo Dieu municipality, territory of Pu Luong protected area, near Eo Dieu village (20°25′48′'N, 105°14′13′'E). Primary wet broad-leaved evergreen forest on very steep slopes of remnant highly eroded karst limestone ridge at elev. 600-700 m a.s.l. Terrestrial herb about 0.4 m hg on shady rocky steep slope. Rare.