Article

Some samples collected in Liguria by Camillo Sbarbaro and identified as Acarospora crozalsii, a species which in the past was often synonymised with A. complanata, were analysed. The species, for which a description is provided, is a Mediterranean silicicolous lichen, known from North Africa (Algeria), southern France and Italy. It differs from the similar A. helvetica in the euamyloid hymenial gel and the thinner parathecium, and should be re-instated in the list of lichens known from Italy.