Valsorda, Gualdo Tadino - Viola eugeniae Parl.
G. Sburlino1, L. Poldini2, C. Andreis3, L. Giovagnoli4 & S. Tasinazzo5
1Department of Environmental Sciences, Informatics and Statistics, Ca’ Foscari University, Campo Celestia 2737b, I-30122 Venezia
2Department of Life Sciences, University of Trieste, Via L. Giorgeri 10, I-3417 Trieste
3Department of Bioscience, University of Milano, Via Celoria 26, I-20133 Milano
4Via Orione 14, I-36055 Nove (Vicenza)
5Via Pascoli 7, I-36100 Vicenza
On the basis of data both new and coming from the literature, the Italian grey alder riparian woods were studied from the syntaxonomic point of view. The floristic-sociological analysis of 119 relevés coming from northern Italy and the comparison with phytosociological tables from neighboring areas (Slovenia, Croatia, Austria, southern Germany and Switzerland) pointed out the occurrence of two distinct associations belonging to Alnion incanae and Fagetalia: the colline-submontane Primulo vulgaris-Alnetum incanae ass. nova and the montane-high montane Aceri-Alnetum incanae. Both these associations are distributed throughout northern Italy and reach their southern limit of distribution in the Tuscan-Emilian Appenines.
grey alder, northen Italy, altitude, syntaxonomy, Alnion incanae