Pachnolepia pruinata (Pers.) Frisch & G. Thor

Syn.: Arthonia impolita (Hoffm.) Borrer, Arthonia pruinata (Pers.) A.L. Sm., Arthonia pruinosa Ach., Pachnolepia impolita (Hoffm.) A. Massal., Patellaria pruinata Pers.
Lichenised.
Substrate: lignum, bark
Altitudinal range: from the mesomediterranean belt (potential vegetation: evergreen broad-leaved forests dominated by Quercus ilex) 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 isolated, old deciduous trees, especially oaks, in parts of the boles seldom wetted by rain; rare in the Alps, and restricted to areas with a rather humid climate.
Austria: Salzburg; Germany: Oberbayern; Italy: Veneto; Lombardia;