Candelariella lutella (Vain.) Räsänen

Syn.: Lecanora xanthostigma (Ach.) Röhl. var. lutella Vain.
Lichenised.
Substrate: bark
Altitudinal range: from the submediterranean/colline belt (potential vegetation: mixed deciduous forests dominated by Quercus and Carpinus) to the subalpine belt (potential vegetation: open, taiga-like forests dominated by Larix decidua and/or Pinus cembra and Rhododendron)
Note: a cool-temperate, perhaps holarctic lichen of smooth bark, especially of Alnus; regionally overlooked, or confused with similar species, but certainly not common in the Alps.
Austria: Vorarlberg; Tirol; Kärnten; Steiermark; Niederösterreich (incl. Wien); Switzerland: Graubünden; France: Alpes-de-Haute-Provence; Haute-Alpes; Alpes-Maritimes; Drôme; Isère; Vaucluse; Var; Italy: Friuli; Veneto; Trentino Alto Adige; Piemonte;