Thallus foliose, lobate, loosely attached, to 8 cm diam. Lobes narrow, elongate, ± strap-like, 0.5-2 mm wide and to 6 mm long, ± dichotomously branched, to somewhat irregular, margins entire, black, shining, apices ± ascending and appearing subfruticose. Upper surface smooth, shining, yellowish-green, isidia, maculae and soredia absent. Lower surface pale brown to black, shining, darkening at tips, smooth to slightly roughened, sparsely rhizinate. Rhizines pale brown, simple, towards lobe tips. Apothecia occasional, subpedicellate, laminal, rarely submarginal, to 4 mm diam., disc pale red-brown, imperforate, margins entire or crenulate, thalline exciple smooth, shining. Pycnidia occasional to frequent, punctiform, black or red-brown. Chemistry: Cortex K-; medulla K-, C-, KC+ pink, Pd-. Norlobaridone, loxodin and usnic acid.