Abstract
A new endemic species of Hieracium is described from the Madonie Mountains (northern Sicily). Named Hieracium madoniense, this new taxon is confined to the Rocca di Mele, along the borders of Fagus sylvatica woods, on carbonate substrate. Relationships with the closest taxa are discussed.
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Acknowledgements
Prof Enio Nardi, Firenze University, is gratefully acknowledged for the critical reading of this manuscript. Financial support by Università degli Studi di Palermo (ex 60%) is also acknowledged.