FLORA OF VIETNAM. Fam. Convallariaceae. Peliosanthes teta ?. N. Vietnam, prov. Cao Bang, distr. Thach An, municipality Van Trinh,. (N 22°21' E 106°27'), about 39 km to SSE from Cao Bang town. Secondary. open semideciduous broadleaved forest on steep slopes near tops of. remnant limestone ridge at 600 m alt. Epilite herb on steep shadow. slopes. Flowers pale violet. Very common. No CBL 833   03 Dec. 1998. International Botanical Expedition of the U.S.A. National Geographic. Society (grant No 6300-98). . Collectors: Averyanov L., N.Q.Binh, P.K.Loc, N.X.Tam.