OMPHALODO-NITIDAE-CORYLETUM-AVELLANAE, A NEW MESOPHYTIC WOODLAND COMMUNITY OF THE NORTHWEST IBERIAN PENINSULA

We describe a new woodland association, Omphalodo nitidae-Coryletum av ellanae, of which we present a series of releves. On the basis of flor istic composition, the new association is assigned to the European mes ophytic woodland alliance Carpinion Issler em. Mayer 1937. We detail t he floristic differences between the new association and its vicariant s, presenting a synoptic table which summarizes the characteristics of the associations of Carpinion described to date in the northwest Iber ian Peninsula. We also provide information on biogeographical, ecologi cal and dynamic aspects of the new association.