FLORA OF VIETNAM. Fam. Orchidaceae. Agrostophyllum callosum Rchb.f. N. Vietnam, Ha Giang prov., Quan Ba distr., Can Ti municipality,. vicinities of Sing Xuoi Ho village (N 23°04' E 104°59'), 26.2 km to. 002° of Ha Giang city. Primary closed evergreen mixed wet mossy forest. (with Cupressus, Taxus, Nagea and Pseoudotsuga) along tops of karst. remnant limestone ridge at elev. 1100-1150 m a.s.l. Epiphyte at the. base of old mossy trees. Not common. No NTH 3595 12 Oct. 1999. . Collectors: N.T. Hiep, N.Q. Binh, L. Averyanov, P. Cribb.
Coordinates (geographic position):23° 4′ N, 104° 59′ E ±1000 mRecord creation: 2019-05-30, Leonid Averyanov, PhotoScan D1Citation: Specimen LE 01054701 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01054701