Abstract: Six new species and one oew variety of the genus Begonia from yunnan, China are described.They are Begonia lancangensis S,H,Huang,B.ceratocarpa S,H.Huang & Shui B.yingjiangensis S.H.Huang,B.subhouii S.H.Huang ,B. manhaoensis S.H.Huang et Shui,B.obliquefolia S.H.Huang et Shui,B.balansana Gagn. var,rubropilosa S.H.Huang & Shui .Eight species are describeb additionally and one species is named newkt,They are B.tetragona lrmsch., B.obsolescens lrmsch.,B. laminariae lrmsch .,B.truncatiloba lrmsch.,B. uillifolia lrmsch.,B.psilophylla lrmsch.,B.uersicolor lrmsch.,B.hekouensis S.H.Huang., B.pseudodryadis C.Y.Wu.

Key words: Begonia