Xiangkhouang Prov., Kham Distr., Huad village, Phou tat Vinh mt., around point 19°32′31.6′N 103°39′40.4′E. Primary and secondary broad-leaved evergreen and semideciduous dry forest on very steep rocky slopes of limestone highly eroded mountains composed by solid marble like limestone at elev. 1200-1400 m a.s.l. Epiphyte on old tree on mountain top. Not rare. LA-VN 1036 4 April 2015 Coll.: N.T.Hiep, L.Averyanov, N.S.Khang, N.Q.Hieu, T.Maisak, Pheng Phengsintham.
Coordinates (geographic position):19° 32′ 31.6″ N, 103° 39′ 40.4″ E ±1000 mRecord creation: 2020-10-17, Leonid Averyanov, PhotoScan D2. Processing status: work_status_1Citation: Specimen LE 01073817 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01073817