Thallus foliose-lobate, closely attached, ± rosette-forming, to 20 cm diam., with a black, fibrous prothallus visible at margins. Lobes rather narrow, to 2 mm wide and 6-10 mm long, discrete or imbricate centrally, margins entire, ± narrowly tapering or ± bifurcate at apices, flat or slightly undulating, thickened below. Upper surface bright lettuce-green, becoming cinnamon-brown on storage, smooth, matt, margins slightly darker, shining, epruinose, not scabrid or tomentose, sometimes ± cracked, ± coriaceous. Lower surface pale buff-brown, with dense, buff or brown tomentum and rhizines almost to margins. Cephalodia flattened, placodioid, to 2 mm diam., marginal and laminal, simple, globose at first, becoming wrinkled-plicate. Apothecia frequent, often crowded, sessile or subpedicellate, round to irregular, to 5 mm diam., disc red- brown or orange, often gyrose-etched, darker centrally, often with concentric rings or ridges, epruinose, margins thick, crenulate-striate. Ascospores ellipsoid- fusiform, 11-20 × 8-11 µm.