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Fitosociologia numero 39 (1) S2

pag. 29-56: La classe Rhamno-Prunetea in Friuli Venezia Giulia e territori limitrofi

L. Poldini1, M. Vidali1 & K. Zanatta


1 Dipartimento di Biologia, Università di Trieste, via L. Giorgieri 10, I-34127 Trieste; e-mail: poldini@univ.trieste.it,
vidali@univ.trieste.it

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abstract

The class Rhamno-Prunetea in Friuli Venezia Giulia and neighbouring areas. Pre-mantels and mantels of north-eastern Adriatic region are described. They grow from the lower mesotemperate horizon, inside the belt of termophilous vegetation of Quercetalia pubescenti-petraeae Klika l933 corr. Moravec in Béguin et Theurillat 1984, to the lower supratemperate horizon, in contact with termophilous beach forests. The phytosociological analysis let to the individuation of 10 coenoses which are referable to the following alliances: Cytision sessilifolii Biondi 1988, Berberidion vulgaris Br.-Bl. 1950 (Berberidenion Géhu, Foucault et Delelis-Dusollier 1983. Fraxino orni-Berberidenion Poldini et Vidali 1995), Pruno-Rubion ulmifolii O. Bolòs 1954 (with the unique suballiance Pruno-Rubenion ulmifòlii). Six of the considered coenoses are new.

keywords

Friuli Venezia Giulia, north-eastern Adriatic region, Rhamno-Prunetea, thickets (pre-mantels, mantels)