Fourteen parmelioid species, Cetrelia cetrarioides, Hypogymnia physodes, H. austerodes, H. vittata, Melanelixia subaurifera, Melanohalea elegantula, Parmelia saxatilis, Xanthoparmelia camtschadalis, X. delisei, X. loxodes, X. pokornyi, X. stenophylla, X. tinctina and X. verruculifera, are reported as new to Iran. Th e taxonomy, nomenclature and distribution of the 76 parmelioid lichen species reported from Iran and Caucasus (Russian Caucasus, Azerbaijan Republic, Georgia and Armenia) are briefl y reviewed. Menegazzia subsimilis is reported for the fi rst time from the Caucasus Region.