In this contribution, new data concerning algae, bryophytes, fungi and lichens of the Italian flora are presented. It includes new records and confirmations for the algal genera Chara and Nitella, the bryophyte genera Brachythecium, Didymodon, Fissidens, Physcomitrium, and Riccia, the fungal genera Biatoropsis, Cantharellus, Coprinellus, Dacrymyces, Inosperma, Nigropuncta, Urocystis, and Xanthoriicola, and the lichen genera Arthonia, Bellemerea, Circinaria, Lecania, Lecanora, Lecidella, Mycobilimbia, Naetrocymbe, Parmelia, Peltigera, Porpidia, Scytinium, and Usnea.