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Language: German with multilingual summary in English, German, French, and Italian
The Bodmeren Forest-Silberen region in the Muota Valley of Central Switzerland is part of the large karst area in the Prealps east of Lake Lucerne. An investigation of the lichen flora has been made during the last years; currently, 789 lichen taxa, including species, subspecies, varieties and forma, as well as 114 associated non-lichenized fungi were recorded. All substrates of the forested and non-forested parts and all vegetation zones from montane to alpine have been considered. The species list presents collection data, information about species characteristics and numerous illustrations. Several rare species have been found and the diversity of the lichen flora of the region is remarkably high. 33 lichen taxa, of which 7 Caloplaca and 7 Verrucaria species, are recorded new to Switzerland; 304 lichens are added to the list of the Canton of Schwyz. Today, 49 lichens are exclusively known from this area. Explanations for the species richness, threats and lichen protection and some peculiarities of the region, such as the well-known, rather large population of the rare Usnea longissima are discussed.