FLORA OF VIETNAM
Polypodiaceae s.l.
Asplenium saxorum

N.Vietnam, Bac Kan Prov., Cho Don Distr., Ban Thi Municipality,
Cho Dien village, Then Su mt., 22°14′28′'N 105°29′50′'E.

Heavily logged primary closed evergreen wet broadleaved forest on very
steep slopes and cliffs of remnant mountains composed with highly
eroded crystalline limestone near top of ridge at elev. 250-350 m
a.s.l.

Lithophytic fern in crevices of vertical cliffs. Common.

HLF 870 26 Dec. 2002.

Coll. Phan Ke Loc, L.Averyanov, Nguyen Anh Duc, To Van Thao, Mai Van
Xinh, Nguyen Tien Vinh.
Grant from Henry Luce Foundation.