N.Vietnam, Bac Kan Prov., Cho Don Distr., Ban Thi Municipality,. Cho Dien village, Then Su mt., 22°14'28"N 105°29'50"E. Heavily logged primary closed evergreen wet broadleaved forest on very. steep slopes and cliffs of remnant mountains composed with highly. eroded crystalline limestone near top of ridge at elev. 250-350 m. a.s.l. Lithophyte on vertical shady mossy cliffs. Very common. HLF 858 26 Dec. 2002. Coll. Phan Ke Loc, L.Averyanov, Nguyen Anh Duc, To Van Thao, Mai Van. Xinh, Nguyen Tien Vinh. Grant from Henry Luce Foundation.
Coordinates (geographic position):22° 14′ 28″ N, 105° 29′ 50″ E ±1000 mRecord creation: 2019-05-30, Leonid Averyanov, PhotoScan D1. Processing status: work_status_1Citation: Specimen LE 01054888 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01054888