Lecidea rhododendri (Hepp) Zahlbr.

Syn.: Biatora rhododendri (Hepp) Arnold, Biatora sylvana Körb. var. rhododendri Hepp
Lichenised.
Substrate: bark
Altitudinal range: from the montane belt (potential vegetation: deciduous forests dominated by Fagus sylvatica and closed coniferous forests with Picea abies) to the alpine belt (potential vegetation: treeless Alpine grasslands and tundras, to the lower limit of perennial snow and the equilibrium line of glaciers)
Note: on twigs of Rhododendron and other subalpine shrubs. The species does not belong to Biatora s.str. and is closely related to L. erythrophaea; it does not belong to Lecidea s.str. either.
Austria: Vorarlberg; Tirol; Salzburg; Kärnten; Steiermark; Oberösterreich; Niederösterreich (incl. Wien); Germany: Oberbayern; Schwaben; Switzerland: Graubünden; Luzern; Uri; Italy: Friuli; Veneto; Trentino Alto Adige; Slovenia: Alpine and Pre-Alpine Slovenia;