I licheni della valle dell'Ippari presso Vittoria e della zona archeologica di Camarina (Sicilia orientale)

This contribution was carried out in the valley of Ippari river, near Vittoria, and in the archeological area of Camarina situated at south of valley. The census of the lichen flora showed 81 species: 4 of them are new for Sicily and 14 new for Hybelan region. The vegetation was analysed according to phytosociological method. Various aspect of lichen vegetation on bark (Dirinetum caratoniae, bacidia fraxinea communities, Laecanora horiza communities, Physcietum adscendentis), on soil (Cladonietum convolutae) and rock (Calopaca citrina communities, Bagliettoa parmigera communities) have been identified.