Brown Umbilicaria, thallus rugose, perforated when older, lower surface with well-developed trabeculae. Usually on siliceous boulders in screes, but also on well-lit dry rocks. An arctic-alpine species. Rare in the Czech Republic, recorded from various localities in the Krkonoše and Šumava Mts and from Mt Břidličná in the Hrubý Jeseník Mts.
Literature: Lisická E. (1980): Flechtenfamilie Umbilicariaceae Fée in der Tschechoslowakei. – Biologické Práce SAV 26/4: 1–152.
taxonomic classification:Ascomycota → Lecanoromycetes → Umbilicariales → Umbilicariaceae → Umbilicaria
Red List (Liška & Palice 2010):CR – critically endangered
Red List (Malíček 2023):C1 – critically endangered
Occurrence in the Czech Republic
All records: 15, confirmed 7. One click on a selected square displays particular record(s), including their source(s).