Bacidina arnoldiana (Körb.) V. Wirth & Vězda

Syn.: Bacidia arnoldiana Körb., Lecidea larbalestieri Cromb., Woessia arnoldiana (Körb.) Sérus. & Diederich
Lichenised.
Substrate: calciferous rocks
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: recently, two species were recognised within B. arnoldiana: a saxicolous species which corresponds to the type, and a corticolous species named B. sulphurella; some records from the Alps are likely to belong to B. sulphurella.
Austria: Oberösterreich; Niederösterreich (incl. Wien); Germany: Oberbayern; Schwaben; Switzerland: Bern; Glarus; Graubünden; Schwyz; Ticino; Uri; Unterwalden; Valais; France: Alpes-Maritimes; Isère; Vaucluse; Italy: Friuli; Slovenia: Alpine and Pre-Alpine Slovenia;