Thallus dimorphic. Primary thallus small, verrucose, soon disappearing. Secondary thallus of persistent, fruticose, often richly branching pseudopodetia, firmly attached to substrate by a stout holdfast; pseudopodetia with inconspicuous cephalodia (containing ), and with ± scattered phyllocladia. Photobiont green, ?. Apothecia terminal, often large, expanded, to twice as wide as supporting branch or wider, disc plane with a prominent margin, exciple massive, cupuliform, coarsely wrinkled-scabrid. Ascospores large, muriform, 1-2(-6) per ascus, broadly cylindrical-ellipsoid. Pycnidia sometimes present, below apothecia, minute, swollen, clustered, ostiole punctate, black. Conidia filiform, curved.