FLORA OF VIETNAM Orchidaceae Paphiopedilum helenae Aver
N.Vietnam, Cao Bang Prov., Trung Khanh Distr., Ngoc Khe Municipality, Pac Nga village, around point 22°54′59′'N, 106°31′44′'E, at elevation 800-850 m a.s.l. Remnants of primary broad-leaved evergreen and coniferous forest along rocky tops of rocky ridges and mesae composed with light gray solid marble-like highly eroded crystalline limestone. Lithophyte on vertical cliff of N exposition. Occasional. HAL 5628 11 June 2004 Collectors: L.Averyanov, P.K.Loc, P.V.The, N.T.Vinh.
Coordinates (geographic position):22° 54′ 59″ N, 106° 31′ 44″ E ±1000 mRecord creation: 2020-11-02, Leonid Averyanov, PhotoScan D2. Processing status: work_status_1Citation: Specimen LE 01074818 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01074818