Thallus whitish or glaucous-grey, of roughened ± pruinose, glistening, confluent granules, or ± squamulose or roughened-globose, or granular, spreading in patches on soil or mosses or decaying vegetation, continuous, 1-5 cm diam. Apothecia almost totally immersed in thalline granules, poriform, -like, opening and expanding at maturity into a small, concave, black, matt epruinose disc, 0.5-1 mm diam., margins thick, expanded warted-scabrid, white-pruinose. Ascospores 8 per ascus, shortly ellipsoid, (36-)50-62 × 24-30 µm, with a thick epispore.