A lichen characteristic for mountain old-growth forests that has probably already disappeared from the northern part of the Czech Republic. It usually grows on an acidic shaded bark of old trees, especially beeches. Recently, the species has been reported mostly from beech and boggy forests in the Šumava Mountains. Besides, it has been found in the Novohradské hory Mts, Český les Mts and Javorníky Mts. In the past, the lichen used to be recorded also in mountain spruce forests, where it has almost disappeared probably in consequence of acidification by acid rain. The related terricolous L. pezizoideum reported from the Polish side of the Krkonoše Mts (basalt streak in the Malá sněžná jáma cirque) is not reliably documented in the Czech Republic. Older records under this name correspond to L. disciforme.
Literature: Liška J., Palice Z. & Dětinský R. (1998): Změny v rozšíření vzácných a ohrožených lišejníků v České republice I. – Příroda 12: 131–144.
taxonomic classification:Ascomycota → Lecanoromycetes → Lecanorales → Lopadiaceae → Lopadium
Red List (Liška & Palice 2010):EN – endangered
Red List (Malíček 2023):C3 – endangered
Occurrence in the Czech Republic
All records: 80, confirmed 79. One click on a selected square displays particular record(s), including their source(s).