Bac Kan Province, Ba Be District, Nam Mau Commune, Nam Dai Village. Dry evergreen broad-leaved forest on steep rocky slopes composed by white to gray crystalline marble-like limestone around point 22º25’20’’N 105º35’03’E at elev. of about 650 m a.s.l. Lithophytic fern with fronds to 1 m long in humid valley between limestone hills. Common.
18 October 2023. Nguyen Huu Cuong, Chu Ngoc Quan, L. Averyanov, Nguyen Van Ly, T. Maisak, AL2274.
Record creation: 2024-02-16, Galina Savich, PhotoScan D2.. Processing status: work_status_1Citation: Specimen LE 01254170 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01254170