LICHALP

Fuscidea lightfootii (Sm.) Coppins & P. James

Syn.: Biatora lightfootii (Sm.) Hepp, Biatorina lightfootii (Sm.) Körb., Catillaria lightfootii (Sm.) H. Olivier, Lecidea lightfootii (Sm.) Ach., Lichen lightfootii Sm.

Lichenised.

Substrate: bark

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 species with a grey-green to brownish-green, areolate thallus (similar to F. arboricola), being bluish-white under UV-light and reacting C-, often sorediate and at the same time bearing dark grey-brown to blackish apothecia with centrally constricted ascospores; on small twigs of various trees and shrubs, often near bogs or streams; widespread in the Holarctic region, with a western tendency in Europe and a few scattered records from the Alps.