FLORA OF VIETNAM
Polypodiaceae s.l.
Polypodium bourettii

N.Vietnam, Bac Kan Prov., Cho Don Distr., Ban Thi Municipality, Phia
Khao village, Cau Muc locality 22°17′32′'N 105°31′27′'E.

Primary closed evergreen wet broadleaved forest on very steep slopes
and cliffs of remnant mountains composed with highly eroded
crystalline limestone at the middle part of ridge slope at elev.
700-800 m a.s.l.

Lithophytic fern on vertical cliffs. Not rare.

HLF 817 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.