LICHALP

Protoblastenia rupestris (Scop.) J. Steiner var. rupestris

Syn.: Biatora irrubata (Ach.) Kernst., Biatora rupestris (Scop.) Fr., Lecanora irrubata (Ach.) Nyl., Lecanora rupestris (Scop.) Nyl., Lecidea rupestris (Scop.) Ach., Lichen rupestris Scop., Placodium rupestre (Scop.) Branth. & Rostr., Protoblastenia rupestris (Scop.) J. Steiner var. irrubata (Ach.) Szatala, Verrucaria rupestris (Scop.) F.H. Wigg. non Schrad.

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: a common and ecologically wide-ranging species, most frequent on faces of calciferous rocks wetted by rain and near the ground, an early coloniser of several substrata, from mortar-cement to basic siliceous pebbles, often found also in urban areas, most frequent below the subalpine belt.