FLORA OF VIETNAM Fam. Convallariaceae Polygonatum sp. N. Vietnam, prov. Cao Bang, distr. Nguyen Binh, municipality Ca Thanh (N 22°44' E 105°50'). Primary semideciduous broad-leaved forest on steep slopes and bluffs of remnant karst limestone ridge at 1250-1300 elev. Lithophyte and epiphyte herb. Flowers light green. Not rare. No CBL 1283 13 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.