LICHALP

Rhizocarpon lecanorinum Anders

Syn.: Lecidea geographica (L.) Rebent. var. lecanora (Flörke) Nyl., Rhizocarpon atrovirens auct., Rhizocarpon geographicum (L.) DC. var. lecanorum (Flörke) A. Massal., Rhizocarpon lecanora (Flörke) Lynge

Lichenised.

Substrate: siliceous 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 temperate to boreal-montane, circumpolar lichen, most common on stone walls, dust-impregnated siliceous boulders, roofing tiles, but also found in natural habitats, e.g. with Umbilicaria deusta; widespread throughout the Alps.