Summary: | Phylogenetic analyses of 140 ITS sequences from Norwegian material of Peltigera sect. Peltigera obtained mainly by the Norwegian DNA barcode project OLICH indicate the presence of 26 putative species. Among those, we accept 18 taxonomic species, including the new species Peltigera jonii Timdal & Gjerlaug (also reported from a soil sample from Alaska), four species new to Fennoscandia (P. “fuscoponojensis”, P. islandica, P. “neorufescens” 3, and P. “neorufescens” 5), and an unnamed species closely resembling P. lepidophora. Peltigera monticola is here included in a highly variable P. ponojensis. We also report new localities for the rarely identified species P. “neocanina” and P. wulingensis.
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