FLORA OF VIETNAM Polypodiaceae Microsorum insigne (Blume) Copel. 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. Terrestrial fern on steep shady slope. Fronds to 2 m long. Very common. 7 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1432.
Coordinates (geographic position):23° 3′ 12.56″ N, 104° 51′ 52.06″ E ±1000 mRecord creation: 2019-12-31, Leonid Averyanov, PhotoScan D1Citation: Specimen LE 01067017 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01067017