Izumal n yimtiwgen d izumal imudmawen yettusxedmen deg tesnallunt d tesnitrit i wakken ad sgensen imtiwgen d tfukt d wayyur d 8 n yimtiwgen imaynuten, akken i ttusxedmen deg tkimya i wakken ad ttwiqqnen yakk d yimɣuzen yallan deg yimtiwgen. Aẓaṛ n usemres n izumal-a yella-d seg tallit n zik n iṛumaniyen d yigriken. Tiddukla n tesnallunt tagreɣlant ur tdeggi ara (ur twufeq ara) ɣef usexdem n izumal-a deg yimagraden n tɣamsa neɣ deg yimagraden imadduden, ɣef wanect-a i ggunin ɣef tarrayt niden i tira n yizumal yellan deg tfelwit-a: Izumal n uziweɣ d mezweɣ ttumeggzen d izumal n tewtemt d uwtem deg tesnudert seld n umsisi i d-yefka Carl Von Linné deg useggas n 1750. Amezruy Tiwlafin == Ẓeṛ daɣen ==