FLORA OF VIETNAM. Fam. Ericaceae. Vaccinium sp. N. Vietnam, prov. Ha Giang, distr. Yen Minh, municipality Lao Va Chai,. vicinities of Ngan Chai village, 6 km to W of Yen Minh town (N 23°07'. E 105°08'). Primary evergreen wet mossy mixed forest (with domination. of Tsuga chinensis and Pinus kwangtungensis) along tops of karst. remnant limestone ridge at 1500-1600 m elev. Climbing and creeping. shrub on very steep mossy slopes and vertical shady bluffs. Fruits. red. Common. No CBL 1946   01 May 1999. International Botanical Expedition of the U.S.A. National Geographic. Society (grant No 6300-98). . Collectors: P.K.Loc, P.H.Hoang, Averyanov L.