FLORA OF VIETNAM Gesneriaceae Aeschynanthus macranthus (Merr.) Pellegr.
N.Vietnam, Thanh Hoa Prov., Ba Thuoc Distr., Thanh Son Municipality, middle part of Pu Luong range around point 20°28′14′'N, 105°05′34′'E. Primary evergreen seasonal broad-leaved closed submontane forest on basalt along main ridge at elev. 1450-1550 m. Lithophyte creeping semishrub with pendent shoots up to 2-3 m lg. Flowers red with deep purple spots. Locally abundant.