S. Vietnam, Dak Lac Prov., Krong Bong Distr., Cu Pui Municipality, elevation from Dak Tour village (12°30′N, 108°30′E) to main peak of
Chu Yang Sinh mt system (12°24′N, 108°26′E) along Dak Tour river (N slope). Primary closed wet broad-leaved forest on steep granite slopes at elev. 1550-1600 m. Terrestrial fern with fronds up to 1 m lg in wet cliffs of very deep shady river canyon. Rare.
VH 6300 07.05.2000
International Botanical Expedition of the U.S.A. National Geographic Society (grant No 6383-98)