LICHALP

Verrucaria lacerata Servít

Lichenised.

Substrate: calciferous rocks

Altitudinal range: from the submediterranean/colline belt (potential vegetation: mixed deciduous forests dominated by Quercus and Carpinus) to the montane belt (potential vegetation: deciduous forests dominated by Fagus sylvatica and closed coniferous forests with Picea abies)

Note: a calcicolouos species with a mainly endolithic, brownish grey thallus with small black patches and black prothallus lines, semi-immersed ascomata (to c. 0.4 mm in diam.), a slightly spreading involucrellum reaching down about half of the perithecium, and ellipsoid to oblong ascospores (to c. 35 µm long); reported from scattered localities in Central Europe, including the Eastern Alps (Austria).