FLORA OF VIETNAM Plants of Phong Nha - Ke Bang National Park Polypodiaceae s.l. Pyrrosia sp.
Vietnam, Quang Binh Prov., Quang Ninh Distr., Truong Son Municipality, around point 17°26′50′'N, 106°23′41′'E at elev. about 600 m a.s.l. near U Bo forestry protection station.
Slightly logged primary closed broad-leaved evergreen forest on steep slopes of mountains composed with shale and sandstone along stream canyon.
Lithophyte on large mossy stream boulders. Very common.