FLORA OF VIETNAM Aceraceae Acer tonkinense Lecomte
N.Vietnam, Thanh Hoa Prov., Quan Hoa Distr., Phu Le Municipality, Hang village, around point 20°32′19′'N, 105°05′03′'E. Primary evergreen seasonal broad-leaved closed submontane forest on tops of rocky ridge composed with crystalline marble-like highly eroded limestone at elev. 750-800 m. Tree 6-10 m tall. Leaves dark purple. Occasional.