Article

On the small, bryologically almost unexplored volcanic island of Ustica, off the northem coast of Sicily in the Thyrrenian Sea, 51 species and infraspecific taxa of bryophytes have been collected: lO liverworts and 41 mosses, of which a list is presented. In their majority they can be ascribed to the temperate element. Riccia cavernosa and Bryum dunense are the most interesting of these findings.