LICHALP

Verrucaria globulans Zahlbr.

Lichenised. Poorly known taxon.

Substrate: calciferous rocks

Altitudinal distribution: subalpine belt (potential vegetation: open, taiga-like forests dominated by Larix decidua and/or Pinus cembra and Rhododendron)

Note: a calcicolous species with a thin, brownish-grey thallus forming confluent patches limited by dark prothallus lines, hemispherically protruding, black, glossy ascomata (to c. 0.8 mm in diam.) with an adpressed involucrellum reaching down one third of the perithecium, and subglobose ascospores (to c. 12 µm long); only known from the type locality in the Eastern Alps (Austria).