FLORA OF VIETNAM Polypodiaceae s.l. Pronephrium cuspidatum (Blume) Holltum
Vietnam, Thua Thien – Hue Prov., A Luoi Distr., A Roang Municipality, Tra Lenh Forestry Department station, around point 16°04′41′'N, 107°29′06′'E.
Primary closed evergreen broad-leaved forest on very steep mountain slopes and hill tops composed with shale, sandstone and granite at elevation 700-800 m a.s.l.