LICHALP

Alyxoria ochrocheila (Nyl.) Ertz & Tehler

Syn.: Opegrapha atricolor Stirt., Opegrapha ochrocheila Nyl., Opegrapha rubescens Sandst.

Lichenised.

Substrate: bark, lignum

Altitudinal range: from the submediterranean/colline belt (potential vegetation: mixed deciduous forests dominated by Quercus and Carpinus) to the montane belt (potential vegetation: deciduous forests dominated by Fagus sylvatica and closed coniferous forests with Picea abies)

Note: a Mediterranean-Atlantic species found on on the smooth bark of (mostly) evergreen broad-leaved trees and shrubs, more rarely on lignum; in the Alps it is very rare and restricted to areas with mild winters. The orange pruina on the exciple is diagnostic.