A saxicolous species resembling a more common C. viride from which it differs by shorter stalks of fruiting bodies, whitish pruina on the exciple, leprose thallus and also chemically (Tibell 1999). It grows on overhanging siliceous rocks in humid, shady habitats. In Europe this lichen is rare, distributed mainly across boreal and colder temperate areas. There are only historical reports on its occurrence from several regions of the Czech Republic. The last report, verified by Vězda (1998), is from an unspecified locality in the Třebíč region. In fact, most of all the historical records come from this area.
Literature: Vězda A. (1998): Flóra lišejníků v oblasti vlivu energetické soustavy Dukovany-Dalešice. – Acta scientiarum naturalium musei moraviae occidentalis Třebíč 30: 77–120. Tibell L. (1999): Calicioid lichens and fungi. – Nordic Lichen Flora 1: 20–94.
taxonomic classification:Ascomycota → Lecanoromycetes → Caliciales → Caliciaceae → Calicium
Red List (Liška & Palice 2010):DD – data deficient
Red List (Malíček 2023):A – no recent data
Occurrence in the Czech Republic
All records: 8, confirmed 8. One click on a selected square displays particular record(s), including their source(s).