FLORA OF VIETNAM Polypodiaceae s.l. Christella parasitica (L.) H. Lev.
N.Vietnam, Thanh Hoa Prov., Ba Thuoc Distr., Co Lung Municipality, Khuyn village, around point 20°26′31′'N, 105°14′55′'E. Primary evergreen seasonal broad-leaved lowland forest on crystalline marble-like highly eroded limestone, N slopes of limestone ridge at elev. 400-460 m. Terrestrial fern. Common.