FLORA OF VIETNAM Orchidaceae Juss. Didymoplexiella siamensis (Rolfe) Seidenf.
N. Vietnam, Tuyen Quang prov., Na Hang distr., Xuan Tam municipality, near Ban Cai village (22°29′18′'N, 105°19′47′'E). Primary broad-leaved evergreen dry forest on very steep slopes of highly eroded remnant limestone ridge at elev. 450-500 m a.s.l. Terrestrial tuberiferous saprophyte in dry steep slope with bamboo. Flowers with strong, very pleasant fragrance, tepals light purple-violet, column white. Rare. HAL 218 22 March 2001 Collectors: P.K.Loc, N.X.Tam, L. Averyanov.
Coordinates (geographic position):22° 29′ 18″ N, 105° 19′ 47″ E ±1000 mRecord creation: 2020-06-20, Leonid Averyanov, PhotoScan D1. Processing status: work_status_1Citation: Specimen LE 01067841 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01067841