Distribution of the moss Diphyscium foliosum (Bryophyta, Diphysciaceae) in the Polish Carpathians

This paper presents current distribution of the moss Diphyscium foliosum (Hedw.) D.Mohr in the Polish part of the Carpathians. Till this time, the species has been known from the 139 localities distributed through the whole territory, but with their distinct concentration in the Western Beskidy Mountains. The altitudinal limits, habitat preferences and its threats are briefly provided. Eighteen localities, mainly from Beskid Śląski and Beskid Sądecki ranges are reported for the first time.