FLORA OF VIETNAM. Huperzia serrata (Thunb.) Trevis. S. Vietnam, Prov. Lam Dong, distr. Lac Duong, municipalite Da Chay, . 35 km to NE from Dalat city. Closed primary broadleaved mt forest along. stream canyon on W macroslope of Gia Rinh mt. ridge at 1500 m alt. . (N 12° 09', E 108° 41'). Terrestrial herb in shadow places. Not rare. No VH 2918  19.03.1997. International Botanical Expedition of the U.S.A. National Geographic. Society (grant No 5803-96). . Collectors: L. Averyanov, N.Q. Binh, P.K. Loc