Megalaria grossa (Pers. ex Nyl.) Hafellner

Syn.: Biatorina premnea (Fr.) A.L. Sm., Buellia premnea (Fr.) Kickx, Catillaria grossa (Pers. ex Nyl.) Körb., Catillaria leucoplaca auct., Catillaria premnea (Fr.) Körb., Catinaria grossa (Pers. ex Nyl.) Vain., Catinaria leucoplaca auct., Lecidea grossa Pers. ex Nyl., Lecidea premnea Fr.
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 to humid subtropical lichen found on base-rich bark of deciduous trees, especially of Acer and Fraxinus; very rare and certainly declining in the Alps.
Austria: Oberösterreich; Germany: Oberbayern; France: Alpes-de-Haute-Provence; Alpes-Maritimes; Vaucluse; Var; Italy: Veneto; Lombardia; Slovenia: Alpine and Pre-Alpine Slovenia; Trnovsky Gozd;