Northern Vietnam, Son La Province, Yan Chau District, Muong Lum Municipality, On Oc Village. Primary forest along ridge on crystalline limestone (20ø59'06''N, 104ø28'46''E) at elevation 1468 m a.s.l. Frequent, mostly lithophytic; pseudobulb ridged, leaves pleated, green; peduncle winged; young fruit dark green, ridged; bracts subtending fruit brown. 4 March 2001, D.Harder et al., DKH 7266.
Coordinates (geographic position):20° 59′ 6″ N, 104° 28′ 46″ E ±1000 mRecord creation: 2020-11-10, Leonid Averyanov, PhotoScan D2. Processing status: work_status_1Citation: Specimen LE 01075297 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01075297