A fertile non-isidiate brown Xanthoparmelia. It differs from a very similar X. delisei by minor morphological features, but mainly by the presence of stenosporic acid as the main secondary metabolite. TLC is necessary for an unequivocal identification, thus, majority of field data from the Czech Republic are recorded as X. pulla agg.
It grows on sun-exposed acidic to basic siliceous and extrusive rocks and stones, including eutrophicated and anthropogenic sites. In Europe, it is considered a temperate to Mediterranean species, but the distribution requires revision due to misidentifications with other species of the aggregate. The situation is similar in the Czech Republic, where it is often not distinguished from X. delisei. For example, in Poland, it has been shown that X. delisei is much more common than X. pulla. The presence of X. perrugata, which mainly differs in the presence of divaricatic acid as the main secondary metabolite, is also plausible in the Czech Republic.
Literature: Szczepańska K. & Kossowska M. (2014): The lichen-forming fungi of the Xanthoparmelia pulla group (Parmeliaceae, Ascomycota) in Poland. – Acta Societatis Botanicorum Poloniae 83: 59–65.
taxonomic classification:Ascomycota → Lecanoromycetes → Lecanorales → Parmeliaceae → Xanthoparmelia
most frequented synonyms:Neofuscelia pullaAll records: 42, confirmed 42. One click on a selected square displays particular record(s), including their source(s).