Houphan Prov., Xon Distr., Nong Hua Pa Noi village, around point 20°13'02.1"N 103°24'23.3"E. Primary and secondary broad-leaved evergreen forest on very steep rocky mountain slopes composed by shaly limestone at elev. 1100-1200 m a.s.l. Creeping epiphyte on tall trees. Flowers yellowish heavy marked with brown-purple. lateral sepals almost entirely purple-brown. Not common. LA-VN 1241 11 April 2015 photos. Coll.: N.T.Hiep, L.Averyanov, N.S.Khang, N.Q.Hieu, T.Maisak, Pheng Phengsintham.
Coordinates (geographic position):20° 13′ 2.1″ N, 103° 24′ 23.3″ E ±1000 mRecord creation: 2019-06-21, Leonid Averyanov, PhotoScan D1. Processing status: work_status_1Citation: Specimen LE 01055567 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01055567