FLORA OF VIETNAM Adianthaceae Adianthum capillus-veneris
N. Vietnam, prov. Cao Bang, distr. Bao Lac, municipality Yen Lac, vicinities of Yen Lac village (N 22°44′ E 105°50′), about 44 km to NWW from Cao Bang town. Secondary open shrubs among limestone rocks on alluvial foothills of limestone remnant ridge at 1100 m alt. Epilite fern on vertical cliffs in rock caves under overhanging bluffs. Rare.
CBL 421 18 Nov. 1998
International Botanical Expedition of the U.S.A. National Geographic Society (grant No 6300-98)