Verrucaria tabacina (A. Massal.) Trevis.

Syn.: Lithocia tabacina A. Massal.
Lichenised. Poorly known taxon.
Substrate: calciferous rocks
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 of calcareous rocks reported from several localities in Central Europe; it has been frequently considered as a synonym of V. nigrescens and its distribution is therefore poorly known.
Austria: Niederösterreich (incl. Wien); Switzerland: Graubünden; Italy: Veneto;