Val Ferret, Courmayeur - Caltha palustris L.
The Berberidion vulgaris alliance in Central Apennines (Central Italy). A phytosociological study regarding the mountain shrublands in central Italy belonging to Berberidion vulgaris alliance sensu Tuxen 1952 (Prunetalia spinosae, Rhamno catharticae-Prunetea spinosae) is reported. Comparing original relevés with relevés from other similar peninsular communities, a coenological and chorological autonomy of Abruzzo mesophytic shrublands can be noted. Two suballiances are recognized in the study area: Berberidenion vulgaris and Ribeso alpini-Juniperenion communis suball. nova. The xerophytic high-montane communities with Rhamnus alpina (subsp. alpina and fallax) and Amelanchier ovalis subsp. ovalis was included into Rhamno alpinae-Amelanchieretum ovalis association and Berberidenion vulgaris suballiance. On the other hand, the low mountain community with Ribes multiflorum and Crataegus laevigata subsp. laevigata was referred to the Cytiso sessilifolii-Crataegetum laevigatae association, whereas the shrubland with Viburnum lantana and Juniperus communis subsp. communis was described as Viburno lantanae-Juniperetum communis ass. nova: both associations were included into the new suballiance Ribeso alpini-Juniperenion communis.
Berberidion vulgaris, Central Apennines, scrub and mantle vegetation, syntaxonomy