ON THE CALCICOLOUS LICHEN COMMMUNITIES FROM COASTAL AREAS 0F THE SOUTHERN IBERIAN PENINSULA AND MOROCCO. The calcicolous lichen vegetation along the coasts of southern Spain, Portugal and
Morocco was investigated. On the basis of the phytosociological approach the following associations and communities are recognized: Caloplacetum subochraceae, Verrucarietum cazzae, community of Solenopsora cesatii and S. olivacea var. olivacea, community of Rinodina immersa, community of Aspicilia calcarea and Xanthoria calcicola, Dirinetum repandae, Opheographetum durieui, community of Heppia solorinoides and Psora vallesiaca, community of Xanthoria resendei and community of Caloplaca xantholyta and Lepraria nivalis. The ecology. distribution and floristic composition of all syntaxonomic units are discussed.