LICHALP

Verrucaria pseudocoerulea Servít

Lichenised. Poorly known taxon.

Substrate: calciferous rocks

Altitudinal distribution: montane belt (potential vegetation: deciduous forests dominated by Fagus sylvatica and closed coniferous forests with Picea abies)

Note: a calcicolous species with a mainly epilithic, grey-brown, verruculose to areolate thallus, ascomata immersed in the centre of areoles, with a slightly protruding ostiolar region, flask-shaped in longitudinal section (to 0.4 mm wide), with a thin, entire involucrellum merged with the perithecial wall, and broadly ellipsoid to subglobose ascospores (to c. 30 µm long); only known from the type locality in the Eastern Alps (Austria).