FLORA OF VIETNAM
Polypodiaceae
Polypodium bourettii?

Son La Prov., Moc Chau Distr., Chieng Hac Municipality, around point 20°51′50″N 104°31′17″E.

Broad-leaved evergreen dry forest on steep slopes and on tops of ridge composed with rocky crystalline solid marble-like highly eroded limestone at elev. 1200-1300 m a.s.l.

Creeping lithophyte on mossy rocks on shady cliff. Common.

HAL 9399 31 Oct. 2006
Coll.: Nguyen Tien Hiep, L.Averyanov, Pham Van The.