LICHALP

Rhizocarpon geographicum (L.) DC. subsp. prospectans (Räsänen) D. Hawksw. & Sowter

Syn.: Rhizocarpon prospectans Räsänen, Rhizocarpon tinei (Tornab.) Runemark subsp. prospectans (Räsänen) Runemark

Lichenised. Poorly known taxon.

Substrate: siliceous 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 exposed surfaces of base-rich siliceous rocks. A western lichen in Europe, which needs further study.