Contributo alla conoscenza della flora vascolare endemica di Toscana ed aree contermini. 7. Rhamnus glaucophylla (Rhamnaceae)

Contribution to the knowledge of the vascular flora endemic to Tuscany and neighbouring areas. 7. Rhamnus glaucophylla (Rhamnaceae) -.The distribution of the narrow endemic Rhamnus glaucophylla Sommier is reported, by the analysis of herbarium specimens, bibliographic references and records in the field. This stenoecious species occurs on limestone soils, only in the Apuan Alps and in a restricted range of Tuscan Apennine. According to IUCN criteria for Red List categories, the species was evaluated as LC, however, some threats occur in the range of the species, so we recommend a monitoring of the populations to avoid dramatic decrease.