FLORA OF VIETNAM Polypodiaceae s.l. Cyclosorus sp.
Vietnam, Thua Thien – Hue Prov., A Luoi Distr., Hong Kim Municipality, Dut village, about 3 km to NE from point 16°17′54′'N, 107°12′41′'E near A Nor waterfall at elevation about 700-800 m a.s.l.
Wet closed secondary broad-leaved forest on very steep slopes of A Nor stream composed with shale and granite.
Lithophytic and terrestrial fern on very steep slopes of shady rocky stream canyon. Locally very common.