N. Vietnam, prov. Cao Bang, distr. Tra Linh, municipality Quang Vinh (N 22°48′ E 106°17′), about 16 km from Cao Bang town to the N. Remnants of primary evergreen broadleaved forest on alluvial valley between remnant limestone ridges at 600 m alt. Epiphyte with pendant shoots up to 30 cm lg on high tree. Not common.
CBL 1106 11 Dec. 1998
International Botanical Expedition of the U.S.A. National Geographic Society (grant No 6300-98)