Thallus ± loosely attached or occasionally ± erect, anchored at one point, 0.5-2(-4) cm broad, corticolous. Lobes rounded to irregular, often distinctly monophyllous and ± cochleate, margins entire, eroded-sorediate. Soredia in marginal, linear soralia, also in scattered, laminal patches, blue-grey, granular. Upper surface grey to dull brown-grey or olive-brown, smooth or wrinkled, matt or glossy, somewhat coriaceous. Lower surface ± uniformly densely tomentose, pale yellow-brown at margins, darker centrally. Cyphellae small, scattered, flat, pale, whitish. Apothecia not seen.