FLORA OF VIETNAM Orchidaceae Juss. Epigeneium labuanum (Lindl.) Summerhayes
N. Vietnam, Thanh Hoa prov., Ba Thuoc distr., Co Lung municipality, territory of Pu Luong protected area, near Co Lung village, Nui Doan (Pha Doan) mountain system (20°26′30′'N, 105°11′32′'E). Primary evergreen broad-leaved dry forest along tops of remnant highly eroded karst limestone ridge at elev. 500-550 m a.s.l. Litophyte and occasional epiphyte at base of tree stem. Very common.