Verrucaria hegetschweileri Körb. ex Nyl. (illeg.) non (Naegeli ex Hepp) Garov.
Lichenised. Poorly known taxon.
Substrate: bark,
Altitudinal distribution: submediterranean/colline belt (potential vegetation: mixed deciduous forests dominated by Quercus and Carpinus)
Note: a species with a very thin, grey thallus, ascomata to c. 0.2 mm in diam., and ellipsoid ascospores (to c. 15 µm long); on bark (and wood?) at the base of trunks of broad-leaved trees; so far recorded from a few localities in the Alps.
