Arthonia stellaris Kremp.

Syn.: Arthonia armoricana Leight.
Lichenised.
Substrate: bark
Altitudinal range: from the submediterranean/colline belt (potential vegetation: mixed deciduous forests dominated by Quercus and Carpinus) to the montane belt (potential vegetation: deciduous forests dominated by Fagus sylvatica and closed coniferous forests with Picea abies)
Note: a mild-temperate lichen found on smooth bark, e.g. of Corylus, and in Abies-Fagus forests.
Austria: Vorarlberg; Salzburg; Oberösterreich; Germany: Oberbayern; Switzerland: Bern; France: Alpes-Maritimes; Drôme; Var;