FLORA OF VIETNAM Polypodiaceae s.l. Diacalpe aspidioides Blume
N.Vietnam, Thanh Hoa Prov., Ba Thuoc Distr., Thanh Son Municipality, middle part of Pu Luong range, SE slope of Phu Pha Phong peak around point 20°28′37′'N, 105°05′20′'E. Primary evergreen seasonal broad-leaved closed submontane forest on basalt along main ridge at elev. 1600-1650 m. Terrestrial and lithophytic fern up to 0.6 m tall. Very common.