FLORA OF VIETNAM
Polypodiaceae s.l.
Colysis longisora ?

N.Vietnam, Ha Tinh Prov., Huong Son Distr., Son Kim Municipality, Rao Bun stream around point 18°23′39′'N, 105°15′12′'E. Primary broad-leaved evergreen closed wet forest on very steep shale slopes of
river canyon at elevation about 300 m a.s.l. Lithophytic fern on wet shady stream bluffs along water line. Common. HAL 5012 2 May 2004

Collectors: P.K.Loc, L.Averyanov, P.V.The, N.T.Vinh.