Fam. Polypodiaceae s.l.

Polystichum sp.

N.Vietnam, Bac Kan Prov., Cho Don Distr., Ban Thi Municipality, village Phia Khao, around point 22º16'58''N, 105º31'20''E at elevation 800-900 m a.s.l. (Lung Chang and Lung Li mountains). Primary broad-leaved evergreen closed and coniferous (with Pinus kwangtungensis) forest on very steep slopes and cliffs along tops of rocky ridge composed with solid marble-like stratified limestone. Terrestrial and lithophytic fern. Very common.

No HAL 4718 20 May 2004 (Photo).

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