The most abundant Czech Clauzadea species that differs from other members of the genus by, e.g., sessile apothecia and small spores (8–12 × 4–6 μm). It prefers limestone or other calcium-rich rock substrates (such as calcareous sandstones, extrusive rocks, slates), including anthropogenic substrates (such as concrete or mortar). It is a pioneer species growing on a wide range of habitats, usually not sun-exposed, from lowlands to mountains. It is distributed all over Europe. In the Czech Republic, it is quite rare, occurring mainly in areas with calcareous rocks.
taxonomic classification:Ascomycota → Lecanoromycetes → Lecanorales → Lecideaceae → Clauzadea
Red List (Liška & Palice 2010):NT – near threatened
Red List (Malíček 2023):C3 – endangered
Occurrence in the Czech Republic
All records: 30, confirmed 22. One click on a selected square displays particular record(s), including their source(s).