LICHALP

Cetraria ericetorum Opiz

Syn.: Cetraria crispa (Ach.) Nyl., Cetraria islandica (L.) Ach. var. crispa Ach., Cetraria islandica (L.) Ach. var. subtubulosa Fr. ex Nyl., Cetraria islandica (L.) Ach. var. tenuifolia (Retz.) Vain., Cetraria subtubulosa (Fr. ex Nyl.) Zopf, Cetraria tenuifolia (Retz.) R. Howe

Lichenised.

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

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: an arctic-alpine, circumpolar species, with optimum on wind-exposed ridges on siliceous substrata; widespread and common throughout the Alps.