The author deals with the results of a research on the presence of Aphyllophorales in Sasso Fratino Forest, an Integral Natural Reserve, inside the Foreste Casentinesi National Park. The research started in 1987 and till now 171 wood-inhabiting species have been collected. Some of them are new to the Italian mycoflora:Antrodiella fissiliformis, Ceriporia alachuana, Laeticorticium meridioroseum, Parvobasidium cretatum, Pycnoporellus fulgens,while some other must be considered very rare species in Italy:Ganoderma carnosum, Lobulicium occultum, Stereum insignitum, Trechispora echynocystis.