Melastomataceae Juss. Sonerilla plagiocardia Diels S. Vietnam, Prov. Kontum. Evergreen primary forest at 2100 m alt. on NW slope of Ngoc Linh mountain system on elevation to Ngoc Gua peak. Herb in shadow rocky cliffs. Leaves greenish white or purple violet below, grey green or green with white dots above. VH 1259 09.04.1995 International Botanical Expedition of the U.S.A. National Geographic Society (grant No 5094-93)
Participants: L. Averyanov, N.T. Ban, N. Q. Binh, A. Budantzev, L. Budantzev, N.T. Hiep, D.D. Huyen, P.K. Loc, N.X. Tam, G. Yakovlev