LICHALP

Evernia mesomorpha Nyl.

Syn.: Evernia prunastri (L.) Ach. var. thamnodes Flot., Evernia thamnodes (Flot.) Arnold, Letharia mesomorpha (Nyl.) Du Rietz

Lichenised.

Substrate: bark, lignum, siliceous rocks

Altitudinal range: from the montane belt (potential vegetation: deciduous forests dominated by Fagus sylvatica and closed coniferous forests with Picea abies) 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 boreal-montane, circumpolar lichen found on bark (often on twigs) of conifers, sometimes on lignum (e.g. on wooden poles, and decorticated branches), with optimum in the subalpine belt; widespread throughout the Alps, but only locally common.