LICHALP

Acrocordia macrospora A. Massal.

Syn.: Acrocordia conoidea (Fr.) Körb. var. macrospora (A. Massal.) B. de Lesd., Arthopyrenia macrospora (A. Massal.) J. Steiner

Lichenised.

Substrate: siliceous rocks

Altitudinal range: from the mesomediterranean belt (potential vegetation: evergreen broad-leaved forests dominated by Quercus ilex) to the montane belt (potential vegetation: deciduous forests dominated by Fagus sylvatica and closed coniferous forests with Picea abies)

Note: an apparently Mediterranean-Atlantic, mild-temperate species (from Macaronesia to Norway), found on base-rich or weakly calciferous siliceous rocks in sheltered situations; certainly rare in the Alps.