In this contribution, new data concerning algae, bryophytes, fungi and lichens of the Italian flora are presented. It includes new records, confirmations or exclusions for the algal genera Cladophoropsis, the bryophyte genera Bryum, Cinclidotus, Dicranella, and Pulvigera, the fungal genera Ascocoryne, Calycina, Echinoderma, Hohenbuehelia, Laccaria, Lasiosphaeria, Leucocoprinus, Neodasyscypha, Propolis, Psathyrella, and Sclerococcum, and the lichen genera Acarospora, Bryoplaca, Caloplaca, Candelariella, Catapyrenium, Cladonia, Lecanora, Lepra, Monerolechia, Mycobilimbia, Pertusaria, Pycnora, Spilonema, Thelopsis, and Xylopsora.