Based on own extensive collections and field studies as well as on the material preserved in the relevant herbaria, the genus Festuca in the summit areas of two of the three districts of the N Apennines is revised. 16 species with three subspecies are recognized: of these, one species, F. riccerii, is described as new to science: F. halleri subsp. yvesii and F. billyi are reported for the first time from Italy, F. trichophylla subsp. asperifolia, F. cinerea, and F. gracilior for the first time from the N Apennines. A key to all taxa is provided; for each taxon a description and data on its distribution as well as ecology including phytosociology are given.
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Vol. 26 • No. 1/2