VIETNAM ORCHIDACEAE Oberonia ensiformis (Sm.) Lindl. det. L. Averyanov, 2001 Son La Yen Chau District; Muong Lum Municipality; Lum Village. Collection on ridges S of village. Collected with P.K. Loc, N.T. Hiep, B. Tan, G.E. Schatz, L.V. Averyanov & S. Bodine. 21°00'17"N 104°29'08"E 1242 m Frequent, lithophytic. Leaves light green; flowers all dull green, anthers yellow. 3 March 2001 D.K. Harder & et al. 7198 Supported by National Science Foundation and National Geographic Society MISSOURI BOTANICAL GARDEN HERBARIUM (MO)