Thallus ± placodioid, spreading, to 5 cm diam., rather loosely attached, ± polymorphic, margins lobate, terricolous or saxicolous. Marginal lobes radiating, ± distinct to 2 mm wide, contiguous, rarely imbricate, apices rounded sometimes notched, flabellate. Upper surface pale cream to bluish-grey, often coarsely scabrid, centrally strongly radially fissured, ± crustose, with numerous anastomosing coarse ridges and cracks, or ± irregularly areolate, areolae separated by coarse, gaping cracks. Apothecia to 0.9 mm diam., at maturity, at first urceolate, deeply immersed in thallus, gradually emergent, thalline margin at first inflexed, later hardly apparent or slightly raised above disc, discrete to 2-4-confluent, the combined disc sometimes dissected by fine to rather coarse cracks, disc dark red-brown, matt or shining, to slightly roughened. Ascospores elongate-fusiform with one or both ends ± tapering, (55-)65-75 × (4.5-)5-5.5(-6.5) µm, (5-)7-septate, locules equal in length. Pycnidia numerous, small, irregular dark spots on upper surface not easily distinguished from young apothecia without microscopic examination. In section large, ± rounded or vertically elongate, c. 800 × 600 µm, conidiophores repeatedly branching forming a network, conidia formed laterally, ellipsoid to ± rod-shaped, 4-5 × 1.5 µm.