Parmelia ernstiae Feuerer & A. Thell

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: this mainly epiphytic species differs from P. saxatilis in the strongly pruinose thallus and isidia, and in molecular characters; it is likely to be more widespread in the Alps, but in the past it was often confused with P. saxatilis.
Austria: Steiermark; Oberösterreich; Germany: Schwaben; Switzerland: Schwyz; Slovenia: Alpine and Pre-Alpine Slovenia;