LICHALP

Pycnora xanthococca (Sommerf.) Hafellner

Syn.: Hypocenomyce xanthococca (Sommerf.) P. James & Gotth. Schneid., Lecidea xanthococca Sommerf.

Lichenised.

Substrate: bark, lignum

Altitudinal distribution: montane belt (potential vegetation: deciduous forests dominated by Fagus sylvatica and closed coniferous forests with Picea abies)

Note: a species closely related to P. praestabilis, but apothecia usually present, as the pycnidia, which contain subglobose conidia; on wood of snags; widespread throughout the boreal zone, confined to Pinus (in the Alps P. sylvestris), with only a few records from the montane belt of the temperate zone, which need confirmation.