Coniocarpon cinnabarinum DC.
Syn.: Arthonia cinnabarina (DC.) Wallr., Arthonia gregaria (Weigel) Körb. non Fée, Arthonia tumidula (Ach.) Ach., Coniocarpon gregarium (Weigel) Schaer., Sphaeria gregaria Weigel, Spiloma tumidulum Ach.
Lichenised.
Substrate: bark
Altitudinal range: from the mesomediterranean belt (potential vegetation: evergreen broad-leaved forests dominated by Quercus ilex) to the montane belt (potential vegetation: deciduous forests dominated by Fagus sylvatica and closed coniferous forests with Picea abies)
Note: a mild-temperate, perhaps holarctic species found on Fraxinus, but also on trees with harder and more acid bark, such as Carpinus, Fagus and even Quercus ilex, in open, humid woodlands, e.g. along rivers; widespread in the Alps, but much more frequent in the past.
Austria: Vorarlberg; Tirol; Salzburg; Kärnten; Steiermark; Oberösterreich; Niederösterreich (incl. Wien); Germany: Oberbayern; Schwaben; Switzerland: Bern; Ticino; Vaud; France: Alpes-Maritimes; Drôme; Isère; Savoie; Haute-Savoie; Vaucluse; Var; Italy: Friuli; Veneto; Trentino Alto Adige; Lombardia; Piemonte; Slovenia: Alpine and Pre-Alpine Slovenia;