Calvitimela aglaea (Sommerf.) Hafellner

A lichen resembling members of the genera Lecidea and Miriquidica. Diagnostic features are the relatively thick, light grey to yellowish thallus composed of flat to convex areoles that contain atranorin, bourgeanic acid and sometimes also usnic acid (cortex K+ yellow, medulla K+ yellow/orange, Pd+ orange).

This predominantly arctic-alpine species grows on exposed acidic silicates. Within central Europe it is more abundant in the Alps, elsewhere it is a rare lichen. There is a number of historical records from the Czech Republic (see the Catalogue by Vězda & Liška 1999). Recently, the species has been confirmed only from the Krkonoše Mountains.

taxonomic classification:

Ascomycota Lecanoromycetes Lecanorales Tephromelataceae Calvitimela

Red List (Liška & Palice 2010):VU – vulnerable
Red List (Malíček 2023):C1 – critically endangered

Occurrence in the Czech Republic

All records: 1, confirmed 1. 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