A rather rare epiphytic Parmelia, usually growing on trunks and branches of deciduous trees, mainly ashes, maples and beeches, both solitary ones and those growing in open forests or in canopies. The species requires higher annual rainfall and therefore occurs mainly in mountain and submountain areas of the Czech Republic. Due to its relatively high sensitivity, it has disappeared from the most heavily air-polluted areas of the country. In Europe, it is a widespread lichen but often was not recognized at the species level in the past. It is considered a Mediterranean-south European mountain element (Hale 1987) but occurs even in Scandinavia where it has been probably spreading lately (Thell et al. 2011). The characteristic features of this species are overhanging scrolled lobes, dot-like isidiate soralia and simple rhizines. Interestingly, the type specimen comes from the Czech Republic, from a locality close to Hlinsko in the Žďárské vrchy Hills.
Literatura: Hale M. E., Jr. (1987): A monograph of the lichen genus Parmelia Acharius sensu stricto (Ascomycotina: Parmeliaceae). – Smithsonians Contributions to Botany 66: 1–55. Thell A., Thor G. & Ahti T. (2011): Parmelia. – in Thell A. & Moberg R. [eds], Nordic Lichen Flora 4: 83–90.
taxonomic classification:Ascomycota → Lecanoromycetes → Lecanorales → Parmeliaceae → Parmelia
Red List (Liška & Palice 2010):EN – endangered
Red List (Malíček 2023):C3 – endangered
Occurrence in the Czech Republic
All records: 76, confirmed 69. One click on a selected square displays particular record(s), including their source(s).