Description: Thallus crustose, white-pruinose, thin and more visible in the wet state, reduced to 3-7 short, whitish grey to greenish grey, broadly triangular lobes radiating all around the apothecia. Apothecia frequent, zeorine, immersed, 0.5-2(-4) mm across, with a brownish black, concave to flat, smooth disc. Proper exciple of radially arranged hyphae; epithecium brownish; hymenium colourless, the hymenial gel not amyloid; paraphyses simple, not apically thickened, free; hypothecium colourless, lying above a layer of algae. Asci many-spored, narrowly clavate, thin-walled, apically thickened, the wall I-. Ascospores 1-septate, slightly constricted at septa, hyaline, narrowly ellipsoid to kidney-shaped, curved, (7-)11-17 x (2-)3-4 µm. Photobiont chlorococcoid. Spot tests: K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.
Note: a typical lichen of steppe grasslands on loess, whose distribution extends widely into Central Asia, found on Loess and (in the Alps) on soil deriving from calcareous schists; restricted to strongly continental Alpine valleys in Italy.
Growth form: Foliose
Substrata: soil, terricolous mosses, and plant debris
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
Subcontinental: restricted to areas with a dry-subcontinental climate (e.g. dry Alpine valleys, parts of Mediterranean Italy)