LICHALP

Verrucaria concinna sensu Schaer. [1836] non Borrer [1831]

Lichenised.

Substrate: calciferous rocks

Altitudinal range: from the montane belt (potential vegetation: deciduous forests dominated by Fagus sylvatica and closed coniferous forests with Picea abies) to the alpine belt (potential vegetation: treeless Alpine grasslands and tundras, to the lower limit of perennial snow and the equilibrium line of glaciers)

Note: a calcicolous species with an epilithic, grey-brown, areolate thallus, the areoles with a dark brown margin and basal layer, broadly conical ascomata (or ostiolar region flattened), a conspicuous, adpressed involucrellum reaching down to the base of the perithecium, and ellipsoid ascospores (to c. 22 µm long); widespread in the European mountains, mostly at mid-elevations; from the Alps there are a few scattered records.