LICHALP

Verrucaria jodophila Servít

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 species related to V. caerulea, with an epilithic, dark lead grey, rimose to areolate thallus forming patches to 1 cm (!) delimited by black prothallus lines, immersed and hardly protruding ascomata (to 0.15 mm in diam.), an adpressed involucrellum reaching down to the base of the perithecium, and oblong to narrowly ellipsoid ascospores (to 20 µm long); only known from the type locality in the Eastern Alps (Italy), on dolomite.