Rinodina polyspora Th. Fr.

Syn.: Berengeria polyspora (Th. Fr.) Trevis., Buellia polysporella (Nyl.) Arnold, Lecanora polyspora (Th. Fr.) Nyl., Lecidea polysporella Nyl.
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 temperate species found on smooth bark, especially of Fraxinus, Sorbus and Carpinus in open woodlands; rather widespread in the Alps, but perhaps declining.
Austria: Vorarlberg; Tirol; Salzburg; Kärnten; Steiermark; Germany: Schwaben; Switzerland: Graubünden; Luzern; Schwyz; Ticino; Italy: Veneto; Trentino Alto Adige; Lombardia; Piemonte; Slovenia: Alpine and Pre-Alpine Slovenia;