Parmotrema crinitum used to be the only Czech isidiate member of the genus Parmotrema. It seeks moist well-lit submontane and montane forests, where it grows on bark of old deciduous trees and on mossy siliceous rocks. In Europe, it is distributed mainly in the rather cold oceanic regions of the temperate zone. In central Europe, the species is rare except for the Alps, where it is slightly more abundant. There is a single record of its occurrence in the Czech Republic, in the first half of the 20th century. It was found on mossy beeches on the slope of the Mt Kněhyně in the Moravskoslezské Beskydy Mts. Currently, the species is considered extinct in the country.
Literature: Suza J. (1926): Lichenes Slovakiae II. (Ad distributionem geographicam adnotionum). – Acta Botanica Bohemica, Praha, 4/5: 3–20.taxonomic classification:
Ascomycota → Lecanoromycetes → Lecanorales → Parmeliaceae → Parmotrema
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