Ha Giang prov., Quan Ba distr., Bat Dai Son Nature Reserve, Thanh Van commune, Tan village, Thong (Conifer) Mountain, around point 23º07ʹ40.3ʺN 104º57ʹ11.2ʺE, at elevation 1000-1195 m a.s.l., karstic, highly eroded mountains composed of solid marble-like limestone, primary evergreen broad-leaved and coniferous (with Pseudotsuga sinensis) humid forest on steep rocky slopes near mountain tops. Creeping epiphyte on mossy tree. Flowers dull yellowish, lip dull violet to brownish. Not common.
19 April 2018, L. Averyanov, Nguyen Sinh Khang, Chuong Quang Ngan, T. Maisak, VR 440.
Coordinates (geographic position):23° 7′ 40.3″ N, 104° 57′ 11.2″ E ±1000 mComment:
Record creation: 2019-01-13, Leonid Averyanov, PhotoScan D1. Processing status: work_status_1Citation: Specimen LE 01048854 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01048854