Typification of Alyssum argenteum All. (Brassicaceae) and of Sedum alsinifolium All. (Crassulaceae), two Italian endemic taxa

Summary In 2011, the Societa Botanica Italiana (S.B.I.) promoted a project named “Taxa di piante vascolari descritti per l'Italia: censimento, tipificazione e approfondimenti biosistematici (Vascularplant taxa described for Italy: census, typification and biosystematic analysis)”. This project has two goals: to typify the names of the endemic Italian taxa of vascular plants not yet typified and to identify their type localities. This paper typifies two names published by Carlo Allioni (1728–1804): Alyssum argenteum All. (Brassicaceae) and Sedum alsinifolium All. (Crassulaceae).