LICHALP

Verrucaria cataractophila Servít

Lichenised. Poorly known taxon.

Substrate: calciferous rocks,

Altitudinal distribution:

Note: a species with a thin, greyish-brown thallus forming patches of c. 2 cm in diam., hemispherically protruding, black ascomata (to c. 0.2 mm in diam.) with an adpressed involucrellum reaching down to the base of the perithecium, and ellipsoid to oblong ascospores (to c. 20 µm long); on dolomite near a waterfall, only known from the type locality in the Eastern Alps (Italy).