FLORA OF VIETNAM Magnoliaceae Acimandra cathcartii (Hook.f.et Thomson) Dandy Northern Vietnam, Ha Giang Prov., Yen Minh Distr., Du Gia municipality, Giang Chu D village (Du Gia Nature Reserve). Primary broad-leaved evergreen closed wet forest on very steep slopes and cliffs of rocky ridges and mesae composed with solid marble-like stratified limestone, around point 22°55?59? N, 105° 08? 47?E, 1647 m a.s.l. Evergreen tree up to 30m height, branchlet slenderly and very common in the top mountain . Leaf and flower fragrant, tepals thin, white( DNA material, Photo. N.T.Hiep DSC03824 , DSC03826, DSC03836) CPC 318 16 May 2010 . Collectors: N. Q.Hieu, N.T. Hiep, N. T. Vinh, H.V.Chung (Funded by Critical Ecosystem Partnership Fund-CEPF through FFI)