Tomasellia arthonioides (A. Massal.) A. Massal.

Syn.: Arthopyrenia arthonioides A. Massal., Melanotheca arthonioides (A. Massal.) Nyl., Pyrenula arthonioides (A. Massal.) Trevis.
Non- or doubtfully lichenised.
Substrate: bark
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: a mild-temperate fungus, most frequent on the smooth bark of Fraxinus ornus in the submediterranean belt.
Austria: Kärnten; Burgenland; Italy: Friuli; Veneto; Trentino Alto Adige; Lombardia; Piemonte; Slovenia: Alpine and Pre-Alpine Slovenia;