S. Vietnam, Prov. Kon Tum, Distr. Dak Gley, about 7-8 km to the S of Dak Gley town on Dak Poko river near Dak Tung village. Primary dry evergreen mountain forest on elevation to Ping Zeng mountain at 900-1100 m alt.
Epilite fern with fronds up to 0.3 m lg. on open rock cliffs along stream canyon at 800-900 m alt. Rare.
VH 2216 03.12.1995
International Botanical Expedition of the U.S.A. National Geographic Society (grant No 5094-93)
Participants: L. Averyanov, N.T. Ban, A. Budantzev, L. Budantzev, N.T. Hiep, D.D. Huyen, P.K. Loc, G. Yakovlev