Article

Eighteen new lichen species (Acarospora cervina, Arthonia lapidicola, Aspicilia calcarea, A. cinerea, Caloplaca chalybaea, Fulgensia schistidii, Hymenelia prevostii, Lecanora albescens, L. rupicola ssp. rupicola, Lecidella stigmatea, Placynthium subradiatum, Psorotichia schaereri, Rinodina gennarii, R. immersa, Sarcogyne privigna, Verrucaria calciseda, V. muralis and V. nigrescens) are first recorded for Israel. The biggest number of species was collected around Mt. Hermon. For the first time two lichen species are recorded from the region of Akko Plain. Fourteen species were found on calcareous rocks and two — on basaltic rocks. Rinodina gennarii occurred on both substrates. Fulgensia schistidii was found among moss on calcareous rocks. Most lichen species have worldwide distribution. Aspicilia cinerea, Fulgensia schistidii, Hymenelia prevostii and Sarcogyne privigna are distributed from the Boreal zone to the Mediterranean mountains. In Israel, they occur predominantly in mountainous regions. We present synonyms, descriptions, ccological peculiarities, localities and habitats in Israel, general distribution, as well as some taxonomic remarks.