LICHALP

Staurothele rugulosa (A. Massal.) Arnold

Syn.: Polyblastia amphiboloides (Nyl.) Trevis., Polyblastia rugulosa A. Massal., Staurothele amphiboloides (Nyl.) Zahlbr., Staurothele innata Walt. Watson, Thelidium hammoniense Erichsen, Verrucaria amphiboloides Nyl.

Lichenised.

Substrate: calciferous rocks

Altitudinal range: from the submediterranean/colline belt (potential vegetation: mixed deciduous forests dominated by Quercus and Carpinus) to the alpine belt (potential vegetation: treeless Alpine grasslands and tundras, to the lower limit of perennial snow and the equilibrium line of glaciers)

Note: on limestone, dolomite, calcareous sandstone, often on walls, roofing tiles etc., usually in upland areas; probably more widespread in the Alps.