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Liverworts (Hepaticae) of the Biała Wisełka Valley (Beskid Śląski Mts, Western Carpathians). Fragmenta Floristica et Geobotanica Polonica 7: 305–332. PL ISSN 1640–629X. ABSTRACT: The phytogeographical and site ecological analysis of hepaticoflora in the Biała Wisełka Valley (Beskid Śląski Mts, Western Carpathians), based on the distribution of 80 liverworts species was carried out. 15 new species for the area under study have been found. The main core of the flora consists of mountain species (66.25%), within this 8 (10%) are high mountain (alpine) species. Site analysis shows the great importance of multisubstratum species, especially those occurring along stream banks and in bogs.