Thallus orbicular to spreading, loosely to closely attached, 5-10(-15) cm diam., corticolous. Lobes broad, rounded, 0.5-2.5 mm wide, imbricate, folded, margins entire, sinuous or slightly notched or incised, often ± ascending at periphery. Upper surface bluish-grey to olive-greenish, often suffused-brownish especially towards apices, smooth, coriaceous or minutely wrinkled, rather papery. Lower surface pale buff to brown, ± densely tomentose from margins to centre, tomentum long, silky, white. Cyphellae white, scattered, 0.2-2.0 mm diam., with a conspicuous, raised margin. Apothecia frequent, clustered towards margins of lobes, sessile or subpedicellate, 0.2-3.0 mm diam., disc red or reddish-brown, matt, rarely glossy, plane to convex, margins pale, thin, often excluded at maturity, yellowish-buff or flesh-coloured, subcrenulate or denticulate. Ascospores 5-7-septate, elongate-ellipsoid, apices pointed, 36-58 × 5-7 µm.