EN
This paper discusses the status of Lecanora semipallida H. Magn. in Poland, with special emphasis to its known distribution. The species was fi rst reported from the area of Poland in the 19th century under the name ‘L. flotoviana Spr.’ and was neglected for over a century. Based on current study it is found to be a common, widespread species occurring on calcareous rocks and concrete in all kinds of environment; L. flotoviana Spreng. was not confi rmed as occurring in Poland.