Abstract: Ten Species of Dysoxylum Bl. were recorded in Yunnan, China including several endemic species, but some species have not yet been recorded. Based upon a comparision of specimens collected from Southern and Southeastern Asia, and studies of relevant data, one new record, Dysoxylum densiflorum (Bl.) Miq. is confirmed in Yunnan.The uniting of species: Dysoxylum s pica-turn into D .binectariferum, D. hainanense into D. mollissimum, D.gobara into D.excelsum is suggested. The supplemental morphological descriptions for some endemic species are added in this paper as well.

Key words: Dysoxylum, D. densiflorum