Squamarina periculosa (Dufour ex Schaer.) Poelt

Squamarina periculosa (Dufour ex Schaer.) Poelt

Syn.: Lecanora crassa (Huds.) Ach. var. periculosa Dufour ex Schaer., Placolecanora crassa (Huds.) B. de Lesd. var. tricolor B. de Lesd.

Lichenised.

Substrate: calciferous rocks

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: in fissures of steeply inclined surfaces of calciferous rocks, with optimum in upland areas.

France: Alpes-de-Haute-Provence; Haute-Alpes; Alpes-Maritimes; Var; Italy: Friuli; Trentino Alto Adige; Lombardia; Piemonte; Valle d'Aosta; Liguria;

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