LICHALP

Verrucaria macrostoma DC.

Syn.: Lithocia macrostoma (DC.) A. Massal., Verrucaria thrombioides A. Massal., Verrucaria viridula auct. non (Schrad.) Ach.

Lichenised.

Substrate: calciferous rocks

Altitudinal range: from the mesomediterranean belt (potential vegetation: evergreen broad-leaved forests dominated by Quercus ilex) 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: an early coloniser of walls (mortar, brick, cement, limestone) in urban areas, more rarely found on calcareous rocks in natural environments, with a wide ecological amplitude, from horizontal to steeply inclined faces visited by birds; widespread throughout the Alps.