Ha Giang Prov., Quan Ba Distr., Tung Vai Commune, Thang Village, around point 23.05349ºN 104.86446ºE, steep rocky slopes of river valley composed with eroded limestone mixed with sandstone at elevation 1000–1100 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest along river. Lithophytic fern on wet mossy stream rocks. Very common. 7 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1410.
Coordinates (geographic position):23° 3′ 12.56″ N, 104° 51′ 52.06″ E ±1000 mComment:
Record creation: 2019-12-31, Leonid Averyanov, PhotoScan D1Citation: Specimen LE 01067004 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01067004