LICHALP

Gyalecta geoica (Wahlenb. ex Ach.) Ach.

Syn.: Lichen geoicus Wahlenb. ex Ach., Secoliga geoica (Wahlenb. ex Ach.) Körb.

Lichenised.

Substrate: calciferous soil, living mosses

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: a cool-temperate to arctic-alpine, circumpolar species found on soil, bryophytes and plant debris over calcareous or base-rich siliceous substrata, often in rock fissures in sheltered situations, mostly in upland areas; widespread throughout the Alps.