FLORA OF VIETNAM Ericaceae Rhododendron sp. Northern Vietnam, Ha Giang Prov., Vi Xuyen Distr., Lao Chai municipality, Can Sao village (Tay Con Linh Nature Reserve). Primary broad-leaved evergreen closed forest mixed with semi- decidous forest dominated by Alnus nepalensis, Betula alnoides, Carpinus pubescens around point 22° 49′ 21′' N, 104° 49′ 03′E, 1775 m a.s.l (near main field camp). Herb succulent, 50 cm tall; stem with violet merk; petal brilliant yellow CPC 392 21/5/2010 . Collectors: N. Q.Hieu, N.T. Hiep, N. T. Vinh, L.T.Khuynh (Funded by Critical Ecosystem Partnership Fund-CEPF through FFI)