Verrucaria hemisphaerica Servít
Lichenised. Poorly known taxon.
Substrate: siliceous rocks
Altitudinal distribution: montane belt (potential vegetation: deciduous forests dominated by Fagus sylvatica and closed coniferous forests with Picea abies)
Note: a species resembling in habitus V. nigresccens, with a spreading, epilithic, rimose to areolate, brown-black thallus, the black ascomata (to c. 0.3 mm in diam.) hemispherically protruding, with an adpressed involucrellum reaching down to the base of the perithecia, and oblong to ellipsoid ascospores (20-24 × 7-10 μm); on porphyric rocks, only known from the type locality in the Eastern Alps (Slovenia).
Slovenia: Alpine and Pre-Alpine Slovenia;
