FLORA OF VIETNAM Orchidaceae Dendrobium williamsonii Day & Rchb.f.
N. Vietnam, prov. Cao Bang, distr. Nguyen Binh, municipality Ca Thanh (N 22°44′ E 105°50′). Primary evergreen broad-leaved forest on steep slopes and bluffs of remnant karst limestone ridge at 1400 m elev. Epiphyte in open places. Flowers: tepals yellowish-white, lip yellowish-white, base of epichile orange-pink with white hairs, tips of lip sides pink-orange. Rare. CBL 1311 13 April 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):22° 44′ N, 105° 50′ E ±1000 mRecord creation: 2020-06-20, Leonid Averyanov, PhotoScan D1. Processing status: work_status_1Citation: Specimen LE 01067768 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01067768