Ha Giang Prov., Yen Minh Distr., Du Gia municipality, Giang Chu D village (Du Gia Nature Reserve), around point 22°55?53? N, 105° 08?32?E, 1718 m a.s.l. 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. Evergreen tree uy to 5 m height, common in slope or top mountain. young leaf and tepals pinkish. CPC 281 B 14 May 2010. . Collectors: N. Q.Hieu, N.T. Hiep, N. T. Vinh, H.V.Chung (Funded by Critical Ecosystem Partnership Fund-CEPF through FFI)