A group covering the very similar P. ernstiae, P. saxatilis and P. serrana. While P. ernstiae and P. serrana are primarily epiphytical, P. saxatilis is saxicolous. In general, taxa are hardly distinguishable, considered cryptic and reliably identifiable only by DNA by some authors (such as Corsie et al. 2019). However, it seems that these species are relatively clearly defined in the area of the Czech Republic by a combination of morphological, chemical and ecological characteristics.
Literature: Corsie E., Harrold P. & Yahr R. (2019): No combination of morphological, ecological or chemical characters can reliably diagnose species in the Parmelia saxatilis aggregate in Scotland. – Lichenologist 51: 107–121. Ossowska E., Guzow-Krzemińska B., Dudek M., Oset M. & Kukwa M. (2018): Evaluation of diagnostic chemical and morphological characters in five Parmelia species (Parmeliaceae, lichenized Ascomycota) with special emphasis on the thallus pruinosity. – Phytotaxa 383: 165–180.taxonomic classification:
All records: 917, confirmed 402. One click on a selected square displays particular record(s), including their source(s).