Polyblastia verrucosa (Ach.) Lönnr.

Polyblastia verrucosa (Ach.) Lönnr.

Syn.: Pyrenula verrucosa Ach.

Lichenised.

Substrate: calciferous rocks

Altitudinal range: from the montane belt (potential vegetation: deciduous forests dominated by Fagus sylvatica and closed coniferous forests with Picea abies) to the nival belt (above the lower limit of perennial snow and glaciers)

Note: on steeply inclined, sheltered surfaces of calcareous rocks, with optimum above treeline; widespread throughout the Alps.

Austria: Vorarlberg; Tirol; Salzburg; Kärnten; Steiermark; Oberösterreich; Germany: Schwaben; Switzerland: Bern; Graubünden; Luzern; St. Gallen; Schwyz; Unterwalden; Vaud; Valais; France: Alpes-de-Haute-Provence; Savoie; Haute-Savoie; Italy: Friuli; Veneto; Trentino Alto Adige; Piemonte; Valle d'Aosta;

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