Primary thallus evanescent. Pseudopodetia 1-4 (-6) cm, erect or horizontally spreading, often forming tufts, irregularly branched, grey to green-white, corticate, with a solid cartilaginous axis of parallel hyphae surrounded by a lax medulla, usually without tomentum on the lower surface, very rarely slightly tomentose towards the base of young branches, not dorsiventrally flattened. Phyllocladia to 1 mm, cylindrical, branched, becoming coralloid and elongate, not confluent, occasionally forming crust-like masses. Photobiont trebouxioid. Cephalodia to 0.3 mm diam., inconspicuous and infrequent, occasionally absent, rough, brownish grey, containing Stigonema. Anamorph: no information available. Teleomorph: ascomata apothecia, frequent, small, terminal on short, lateral branches. Disc disc usually becoming convex to almost globose, brown-black. Thalline exciple absent. True exciple becoming excluded. Epithecium hardly developed, hypothecium hyaline. Interascal tissue of unbranched paraphyses, the apices slightly swollen and with a brown cap. Asci clavate to cylindrical, K/I+ blue outer layer, apical dome K/I+ blue ± with a central, darker blue tube, Porpidia-like, 8-spored. Ascospores 24-31 x 2.5-3 µm, ± cylindrical, usually 3-septate, hyaline, smooth, thin-walled, without a perispore, gelatinous sheath or appendages. Chemistry: thallus K+ yellow, KC–, Pd+ orange, UV– (atranorin, stictic acid, ± norstictic acid).