LICHALP

Verrucaria mauroides Schaer.

Syn.: Lithocia mauroides (Schaer.) A. Massal., Thrombium mauroides (Schaer.) Zschacke

Lichenised. Poorly known taxon.

Substrate: siliceous 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 species of unclear relationship with a thin, blackish thallus, hemispherically protruding ascomata (to c. 0.2 mm in diam.), and an involucrellum reaching down to the base of the perithecium (other microscopical characters not documented); so far only recorded from a few localities in the Alps.