LICHALP

Cladonia arbuscula (Wallr.) Flot. subsp. arbuscula

Syn.: Cladina arbuscula (Wallr.) Hale & W.L. Culb., Cladina sylvatica (Ach.) Cromb., Cladonia sylvatica (Ach.) Rabenh., Patellaria arbuscula (Wallr.) Wallr., Patellaria foliacea Wallr. var. arbuscula Wallr.

Lichenised.

Substrate: calciferous soil, acidic soil (mostly on siliceous substrata), living mosses, lignum

Altitudinal range: from the submediterranean/colline belt (potential vegetation: mixed deciduous forests dominated by Quercus and Carpinus) to the nival belt (above the lower limit of perennial snow and glaciers)

Note: a circumpolar, boreal-subarctic-subalpine lichen growing in lichen-rich tundra-like vegetation on mineral soil in exposed habitats; sometimes found on lignum. Several records, especially from Italy, could refer to subsp. squarrosa, which is more widespread in the Alps.