Contribution to the knowledge of the epiphytic and terricolous lichen flora of Abetone (Tuscan - Emilian Apennines, Central Italy)

200 infrageneric taxa of lichenised and lichenicolous fungi are reported from the Abetone area (Tuscan - Emilian Apennines, Central Italy). Psilolechia clavulifera (Nyl.) Coppins is a new addition to the lichen flora of Italy, other 17 taxa are new to Central Italy, 26 to Tuscany, 2 to Emilia Romagna. The presence of some taxa previously known from collections of the XIX° century is confirmed. The ecology and distribution of selected species are discussed