Aggiornamento dei subpopolamenti relitti di Petagnaea gussonei (Sprengel) Rauschert (Apiaceae) nell'area dei Monti Nebrodi (Sicilia nord-orientale)

Abstract

In this paper authors point out some new unpublished sites of Petagnaea gussonei (Apiaceae), paleoendemic with a very narrow distribution in NebrodiMountains, also included in Bioitaly checklist of protected plants (Council Directive 92/43/EEC). For the same biotopes (located in Ucria, Tortorici, Longi, Galati Mamertino and S. Salvatore di Fitalia) they provide information and data concerning ecology, floristic, phytosociological and conservation status of subpopulations, together with a discussion of main threats.Moreover, they show an updated geographical distribution of the species, with the twenty recorded sites, also underlying the need for a suitable conservation in order to contain any regression of this macroendemism of theMediterranean area.