FLORA OF VIETNAM
Polystichum sp.

N. Vietnam, prov. Cao Bang, distr. Bao Lac, municipality Yen Lac,
vicinities of Yen Lac village (N 22°44′ E 105°50′). Primary mixed
semideciduous forest (with domination Keteleeria chinensis) along tops
of remnant karst limestone ridge at 1450-1500 m elev. Lithophyte fern
on vertical shady bluffs. Common.

CBL 1461 16 April 1999

International Botanical Expedition of the U.S.A. National Geographic
Society (grant No 6300-98)

Collectors: P.K.Loc, P.H.Hoang, Averyanov L.