LICHALP

Staurothele caesia (Arnold) Arnold

Syn.: Polyblastia caesia Arnold; incl. Staurothele ebborensis Walt. Watson, Staurothele saprophila Arnold

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 and dolomite in exposed situations, mostly in upland areas, usually not reaching the alpine belt.