FLORA OF VIETNAM. Huperzia phlegmaria (L.) Roth. S. Vietnam, Prov. Ninh Thuan, distr. Ninh Son, municipalite Phuoc Binh. in 34 km to NE from Dalat city. Closed primary broadleaved forest. along mt ridge between Bi Dup and Gia Rinh mt. mt at 1800-1900 m alt. (N 12° 07', E 108° 42'). Epiphyte on mossy stems of old trees. Not common. No VH 3618  03.04.1997. International Botanical Expedition of the U.S.A. National Geographic. Society (grant No 5803-96). . Collectors: L. Averyanov, N.Q. Binh, P.K. Loc