Contributo alla conoscenza della vegetazione dell’Isola di Gorgona (Arcipelago Toscano).

vegetation survey carried out on Gorgona Island, the smallest and the northernmost island of the Tuscan Archipelago, are here presented. Vegetation has been described by over 80 phytosociological relevés, which allowed 19 vegetation types to be singled out at various syntaxonomical levels, and to build up the island vegetation map at the scale 1:5,000; the file can be downloaded at http://dl.dropbox.com/u/15732686/carta_VEG_GORGONA.pdf. During the survey, the following new syntaxa have been recognised and described: Erico arboreae-Arbutetum Allier & Lacoste 1980 ex Foggi in Foggi & Grigioni 1999 subass. rosmarinetosum officinalis; Euphorbio pineae-Helichrysetum litorei Foggi, Cartei & Pignotti 2008 subass. dittrichiaetosum viscosae; Crithmo maritimi-Limonietum gorgonae; Limonio gorgonae-Senecetum cinerariae. Finally, the presence of habitats deserving conservation according to European Habitat Directives and Tuscan laws is pointed out.