N.Vietnam, Bac Kan Prov., Ba Be Distr., Nam Mau Municipality, Ba Be National Park around point 22o23'22''N 105o37'09''E. Selectly logged primary evergreen closed broad-leaved forest on slopes composed with crystalline highly eroded marble-like limestone at elevation 300-400 m a.s.l. Terrestrial herb among shady rocks. Leaves velvety black above, dull purple beneath. Rare.
HLF 638 23 Dec. 2002.
Coll. J.Regalado, Nguyen Tien Hiep, L.Averyanov, Do Hoang Chung, To Van Thao, Vu Hong Van, Nguyen Tien Vinh, Mai Van Xinh.
Record creation: 2020-12-28, Leonid Averyanov, PhotoScan D2. Processing status: work_status_1Citation: Specimen LE 01076841 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01076841