Substrate: acidic soil (mostly on siliceous substrata)
Altitudinal distribution: montane belt (potential vegetation: deciduous forests dominated by Fagus sylvatica and closed coniferous forests with Picea abies)
Note: a species with an olive-black, thin thallus becoming somewhat gelatinous when wet (with a cyanobacterial photobiont), based on a type from Finland; on moist sandy or clayey soil in inland habitats; a rare taxon with a few scattered records in Europe, including a single record from the Alps, along the edge of a forest road; ecology otherwise poorly known.
