FLORA OF VIETNAM Appendicula gracilis Aver. S. Vietnam, Prov. Khanh Hoa, distr. Khanh Son, 42 km to NE from Dalat city. Primary closed broadleaved evergreen forest along bluffs of giant waterfall in upper reaches of Lieng Ly river on E macroslope of Hon Giao mt. ridge at 1300 m alt. (N 12° 12', E 108° 44'). Pendant epilite on shadow stream rocky bluffs. Flowers white, tepals and lip tip purple-violet. Rare. No VH 4293 24.04.1997 International Botanical Expedition of the U.S.A. National Geographic Society (grant No 5803-96) Collectors: L. Averyanov, N.Q. Binh, N.T. Hiep