S. Vietnam, Kontum Prov., Kon Plong Distr., Hieu Municipality, Mang La forest enterprise (14°39′N, 108°25′E). Primary broad-leaved closed evergreen wet mountain forest on sandstone steep slopes of forest river at elev. 1100-1200 m. Woody fern up to 10 m hg with fronds up to 4 m lg in wet shady river canyon. Locally very common.
VH 5633 23.04.2000
International Botanical Expedition of the U.S.A. National Geographic Society (grant No 6383-98)