LICHALP

Verrucaria confluens A. Massal. nom.illeg. non (Weber) F.H. Wigg.

Syn.: Verrucaria muralis Ach. var. confluens (A. Massal.) Körb.

Lichenised. Poorly known taxon.

Substrate: 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: this species, which has been often considered to be a synonym of V. muralis, differs in the thicker thallus and the crowded perithecia with a thick involucrellum. The species has no valid name.