Protoparmelia memnonia is ecologically and morphologically similar to the relatively common P. badia but has a narrower ecological amplitude; it usually grows on wind-exposed open rock outcrops or screes. In central Europe, it has western tendencies, more commonly occurring in mountains rich in rainfall, such as Vosges, Harz, Schwarzwald. In the Czech Republic, it was published as Lecanora picea from the top parts of the Krkonoše Mts in the doctoral thesis of V. Wirth, however specific localization was missing (see the map in Wirth 1972). A specimen from the top of Malý Šišák Mt is deposited in STU herbarium (Museum Stuttgart, H. Thüs, in litt.). Recently, it was also found in the Jizerské hory Mts (unpubl.). The only publication related to this taxon in the Catalogue of the Czech lichens (Vězda & Liška 1999) does not actually mention the species at all.
Literature: Wirth V. (1972): Die Silikatflechten-Gemeinschaften im ausseralpinen Zentraleuropa. – Dissertationes Botanicae 17: 1–306.taxonomic classification: most frequented synonyms:Protoparmelia picea
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