FLORA OF VIETNAM Polypodiaceae s.l. Vittaria elongata Sw.
N.Vietnam, Thanh Hoa Prov., Ba Thuoc Distr., Thanh Son Municipality, Long Bong village, E macroslope of Pu Luong range to the W of point 20°27′52′'N, 105°07′36′'E at elev. 900-1000. Primary evergreen seasonal broad-leaved closed wet submontane forest on very steep mt rocky slope based on basalt. Epiphyte on mossy tree. Common.