Thallus obscure grey or fawnish often somewhat reddish-brown, wrinkled-plicate to ± bullate or inflated-subsquamulose, or subareolate-granular, ± diffract, 1-4 cm diam. Apothecia sessile or innate, black or reddish-black, often red-brown at margins, matt, epruinose, 0.2-2.0 mm diam., solitary or confluent, often crowded, disc plane to subconvex, surface often furrowed, margins thin, brown, or lacking. Epithecium red-brown, 8-14 µm thick. Hymenium pale yellow-brown, 50-65 µm tall. Paraphyses thick, dense, red-brown and capitate, to 5 µm thick at apices. Hypothecium colourless. Ascospores ellipsoid, 8-10 × 4-5 µm.