A calciphilous lichen. Besides limestones, it may grow on other, predominantly calcareous rocks. Most often, it occurs on natural, well-lit rocky outcrops at lower and middle elevations. In Europe, it is a common lichen, especially in the Mediterranean. In the Czech Republic, it appears rather locally, especially in karst areas with the presence of pure limestones.taxonomic classification: most frequented synonyms:Aspicilia calcarea
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