Hydropunctaria maura (Wahlenb.) C. Keller, Gueidan & Thüs

Syn.: Involucrothele magnussonii Servít, Verrucaria haeyrenii Erichsen, Verrucaria malmei Servít, Verrucaria maura Wahlenb., Verrucaria trachinodes Norman, Verrucaria zschackeana Erichsen
Lichenised.
Substrate: rocks
Altitudinal distribution: mesomediterranean belt (potential vegetation: evergreen broad-leaved forests dominated by Quercus ilex)
Note: a species with a dull brown to black, cracked thallus provided with abundant black dots, immersed to protruding perithecia, and ellipsoid ascospores (l/w ratio ≤ 2.0); on both siliceous and calcareous seashore rocks, forming a conspicuous belt at the upper edge of the littoral zone; widespread and common, subcosmopolitan, including the Mediterranean region at the base of the Western Alps, along the coast.
Italy: Liguria;