Příspěvek k poznání rozšíření druhu Caloplaca demissa v Čechách

Previously known and present distributions of Caloplaca demissa in Bohemia are discussed and summarized. Recent field surveys revealed much wider distribution of the species than has been supposed so far. Its altitudinal maximum reaches 700 m in the Doupovské hory Mts (Western Bohemia). Rocks in river valleys and rocky slopes beneath medieval castles and ruins often support this species.