A species closely related to the common and widespread C. teicholyta, from which it differs by the absence of marginal thallus lobes. In the Czech Republic, it occurs naturally on outcrops of soft Cretaceous limestones and calcareous sandstones. Apart from the Czech Cretaceous Basin, only a sporadic occurrence on anthropogenic substrates (bricks, plaster, concrete) is known. The species avoids hard limestone rocks in karst areas. In the Czech Republic, it is a relatively rare lichen.
Literature: Vondrák J., Kocourková J., Palice Z. & Liška J. (2007): New and noteworthy lichens in the Czech Republic – genus Caloplaca. – Preslia 39: 163–184.
taxonomic classification:Ascomycota → Lecanoromycetes → Teloschistales → Teloschistaceae → Caloplaca
Red List (Liška & Palice 2010):VU – vulnerable
Red List (Malíček 2023):C3 – endangered
Occurrence in the Czech Republic
All records: 17, confirmed 17. One click on a selected square displays particular record(s), including their source(s).