A species with tiny black apothecia immersed in white thallus with sharply cropped areoles (so-called rimose thallus). Most of all, it resembles B. aethalea and B. spuria from whose it differs in specific secondary metabolites: atranorin, confluentic acid and 2‘-O-metylperlatolic acid.
Buellia stellulata may be found on siliceous volcanic and even calcareous rocks, including anthropogenic substrates. It is known, for example, as a pioneer on stones (Wirth et al. 2013). In Europe, it is a thermophilic species, more common only in the Atlantic part, elsewhere rare. It was reported several times from the Czech Republic in the past (see the catalogue by Vězda & Liška 1999) but these data require revision.
Literature: Scheidegger C. (1993): A revision of european saxicolous species of the genus Buellia De Not. and formerly included genera. – Lichenologist 25: 315–364. Wirth V., Hauck M. & Schultz M. (2013): Die Flechten Deutschlands. – Ulmer, Stuttgart.
taxonomic classification:Ascomycota → Lecanoromycetes → Caliciales → Caliciaceae → Buellia
All records: 1, confirmed 1. One click on a selected square displays particular record(s), including their source(s).