S. Vietnam, Dak Lac Prov., Krong Bong Distr., Cu Pui Municipality, elevation from Dak Tour village (12°30′N, 108°30′E) along Dak Tour river on N macroslope of Chu Yang Sinh mt system. Primary broad-leaved mountain evergreen forest on granites along river slopes at elev. 500-550 m. Lithophytic fern in crevices of vertical granite cliffs in shady places along river. Very common. VH 5967 03.05.2000
International Botanical Expedition of the U.S.A. National Geographic Society (grant No 6383-98)