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. Lithophyte and epiphyte. in open places. Abundant. No CBL 1993
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.
Coordinates (geographic position):23° 7′ N, 105° 8′ E ±1000 mRecord creation: 2019-06-21, Leonid Averyanov, PhotoScan D1. Processing status: work_status_1Citation: Specimen LE 01055720 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01055720