%0 Journal Article %T THE LYGEO-STIPETEA CLASS IN SICILY %A C. BRULLO %A S. BRULLO %A G. GIUSSO DEL GALDO %A R. GUARINO %J Annali di Botanica %D 2010 %I University La Sapienza of Rome %X Basing on literature data and unpublished relev¨¦s from Sicily, a survey of the syntaxa belonging to the class Lygeo-Stipetea Rivas-Mart¨ªnez 1978 is presented. This perennial vegetation is characterized by the dominance of big caespitose hemicryptophytes, and it is widely distributed in Sicily from the sea level up to 1500 m a.s.l. The class is represented in Sicily by two orders, floristically and ecologically well differentiated: Lygeo-Stipetalia, including the sole alliance Moricandio-Lygeion exclusively of clayey substrates, and Hyparrhenietalia hirtae, including five alliances (Hyparrhenion hirtae, Avenulo cincinnatae-Ampelodesmion mauritanici, Thero-Brachypodion ramosi, Bromo-Oryzopsion miliaceae, and Arundion collinae) occurring on various substrates. Within the class, 50 associations have been recognized. To support the syntaxonomic proposal, a multivariate numerical analysis, considering literature and personal data, has been performed. Nomenclature, floristic settlement, ecology, syndynamism and chorology are examined for each syntaxon. %U http://annalidibotanica.uniroma1.it/index.php/Annalidibotanica/article/view/9119