FLORA OF VIETNAM Orchidaceae Paphiopedilum helenae Aver.
N. Vietnam, prov. Cao Bang, distr. Tra Linh, municipality Co Muoi, vicinities of Lung Dat village (N 22°51′ E 106°14′), about 22 km from Cao Bang town to the N. Primary mixed semideciduous forest (with Pseudotsuga brevifolia) along tops of limestone ridge at 900-1000 m alt. Epilite herb in crevices of vertical cliffs of N exposition. Not common. CBL 1140 12 Dec. 1998 International Botanical Expedition of the U.S.A. National Geographic Society (grant No 6300-98) Collectors: Averyanov L., N.Q.Binh, N.T.Hiep, P.K.Loc, N.X.Tam.
Coordinates (geographic position):22° 51′ N, 106° 14′ E ±1000 mRecord creation: 2020-11-02, Leonid Averyanov, PhotoScan D2. Processing status: work_status_1Citation: Specimen LE 01074802 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01074802