Clauzadea metzleri (Körb.) Clauzade & Cl. Roux ex D. Hawksw.

A relatively rare calciphilous species characterised by a more or less immersed white to light grey thallus and reddish-brown to black, reddish-brown when wet, epruinose apothecia with a black margin in shallow pits.

This species mainly occurs on smaller calcareous stones (including the calcareous sandstone “opoka”) or even gravel as a pioneer lichen of open habitats, such as dry grasslands, from lowlands to mountains. In Europe, C. metzleri is distributed from the Mediterranean to the temperate zone. In the Czech Republic, there is a single historical record from the Podyjí region and a couple of recent findings (Bohemian karst, Bílé Stráně near Litoměřice).

taxonomic classification:

Ascomycota Lecanoromycetes Lecanorales Lecideaceae Clauzadea

Red List (Liška & Palice 2010):VU – vulnerable
Red List (Malíček 2023):DD – data deficient

Occurrence in the Czech Republic

All records: 4, confirmed 3. One click on a selected square displays particular record(s), including their source(s).


record after the selected year
record before the selected year
records without date
Doubtful and erroneous records are not displayed.
credible record
doubtful record
erroneous record
record without revision

Altitude preferences

Distribution Timeline

Substrate type

Substrate preferences

© Botanický ústav AV ČR, v. v. i. 2020–2024