Zwackhia viridis (Ach.) Poetsch & Schied.

Zwackhia viridis (Ach.) Poetsch & Schied.

Syn.: Graphis involuta Wallr., Opegrapha involuta (Wallr.) Jatta, Opegrapha rubella Pers. var. viridis Ach., Opegrapha viridis (Ach.) Behlen & Desberger, Sclerographa squalida Erichsen, Zwackhia involuta (Wallr.) Körb.

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 species found in woodlands on the bark of broad-leaved trees, more rarely of conifers; widespread throughout the Alps, but generally not very common.

Austria: Vorarlberg; Tirol; Salzburg; Kärnten; Steiermark; Oberösterreich; Niederösterreich (incl. Wien); Burgenland; Germany: Oberbayern; Switzerland: Bern; Glarus; Graubünden; Luzern; Schwyz; Uri; Unterwalden; Valais; France: Alpes-Maritimes; Italy: Veneto; Trentino Alto Adige; Lombardia; Liguria; Slovenia: Alpine and Pre-Alpine Slovenia; Trnovsky Gozd;

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