新疆十字花科2个新记录种OA

Through literature review and comparative studies of plant morphology,two newly recorded species of Brassicaceae in Xinjiang were identified:Didymophysa aucheri Boiss.and Bunias orientalis L..Among them,D.aucheri is a newly recorded species for China,while Bunias represents a newly recorded genus for Xinjiang.Additionally,B.orientalis is classified as a quarantine weed.Herein,morphologies of the two newly recorded species are described,accompanied by color photographs and distribution information.Meanwhile,the biogeographic significance of their discovery,as well as the diversity and particularity of plants in their distribution area,are discussed.Suggestions for further investigation and protection are also proposed.The voucher specimens are deposited in the Herbarium of Grassland General Station of Xinjiang Uygur Auto-nomous Region(XJCYZZ).