Aspicilia contorta subsp. contorta forme des substrats secs et ensoleillés.
This xeric form, rare in our prospecting region because it is thermophilic and Mediterranean, differs from the type by its occurrence on dry limestone rocks that are very sunny. It presents more or less brownish colorations depending on the exposure and the nature of the substrate. Often near Aspicilia calcarea which shares its climatic and substrate preferences.