A relatively recently described pyrenocarpous lichen with quite large perithecia (0.5–0.9 mm) and dark brown muriform spores. In the past, the species used to be collected but not recognized and mostly included in the taxon Polyblastia theleodes. In Europe, Atla alpina occurs in Scandinavia and mountains of central Europe. It may be found on damp limestone on calcium-enriched rocks. In the Czech Republic, it was first recorded in 2007 in the Hrubý Jeseník Mts (Halda 2017) and later on Mt Smrk in the Beskydy Mts. The species is probably partly overlooked and, for example, the revision of herbarium specimens of Polyblastia theleodes could help to discover other localities.
Literature: Halda J. (2017): Lišejníky ledovcového karu Velká kotlina v Hrubém Jeseníku. – Acta musei richnoviensis, sect. natur., 24: 7–52.taxonomic classification:
All records: 2, confirmed 1. One click on a selected square displays particular record(s), including their source(s).