Lecania sambucina (Körb.) Zahlbr.

Syn.: Biatorina sambucina Körb., Lecania cyrtella (Ach.) Th. Fr. subsp. sambucina (Körb.) Arnold
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 lichen recalling L. cyrtella, but with 16-spored asci, found in lichen-rich communities on old deciduous trees with a rough, base-rich bark, such as Sambucus, Populus, and Salix; probably widespread throughout Europe, including the Alps, but very likely overlooked or mistaken for L. cyrtella, with which it has been often synonymised.
Austria: Oberösterreich; Niederösterreich (incl. Wien);