Aspetti distributivi e fitosociologici di Brassica incana (Brassicaceae, Magnoliophyta) in Sicilia

Abstract

The authors report two new stations of Brassica incana in Sicily and analyze the relevant synecological issues. This species, subendemic in ex Yugoslavia, Greece and Italy, characterizes a new subassociation in Euphorbietum dendroidis, phytocoenosis belonging to the alliance Oleo sylvestris-Ceratonion siliquae. Brassica incana, in the shrubs formations with Euphorbia dendroides, Rhamnus alaternus, Pistacia terebinthus and Olea europaea var. sylvestris, has high values of abundance-dominance.