Thallus ± orbicular, to 8 cm diam. Lobes 0.3-0.7(-1.0) cm wide, adjacent and often imbricate, broadly cuneate to flabellate, apices rotund. Upper surface smooth, matt or shining, without isidia, lobes sometimes with distinct, transverse, concentric ridges. Rhizines numerous, pale to bluish-black (then often white-tipped), sometimes projecting beyond margins. Apothecia ± frequent, ± adnate, to 0.6 cm diam., orbicular at first, becoming irregular with age, disc pale brown-red to black, short, white hairs projecting from disc margins. Ascospores 9-12 × 3-4 µm.