FLORA OF VIETNAM Clusiaceae Calophyllum sp. 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. Tree 10-12 m hg. Flowers white. Very common codominante of 1 forest stratum along tops of ridge.