Ha Giang prov., Quan Ba distr., Cao Ma Po commune, Chin Chu Lin village, around point 23º05ʹ13.5ʺN 104º48ʹ30.2ʺE, rocky outcrops on steep rocky slopes composed with eroded karstic limestone at elevation 1750–1950 m a.s.l. Highly degraded remnants of primary evergreen broad-leaved very humid forest. Epiphyte on mossy tree. Not common. 20 October 2018, L. Averyanov, Nguyen Sinh Khang, T. Maisak, Truong Duc Thieu, VR 1050.3.
Herbarium specimen prepared in 24.07.2020, flowers odorless, white, lip with yellow bloches margined with brown line. Averyanov L.
Coordinates (geographic position):23° 5′ 13.5″ N, 104° 48′ 30.2″ E ±1000 mRecord creation: 2020-07-29, Leonid Averyanov, PhotoScan D1. Processing status: work_status_1Citation: Specimen LE 01076865 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01076865