FLORA OF VIETNAM Polypodiaceae s.l. Anthrophium sp.
N. Vietnam, Hoa Binh prov., Da Bac distr., near Doan Ket village (20°54′58′'N, 105°03′51′'E). Secondary open broad-leaved evergreen forest along small river at elev. about 650 m a.s.l. Lithophyte fern on shady vertical limestone cliffs. Not rare.