Anamorph: not known. Teleomorph: stromata absent. Ascomata perithecia, 150-180 µm diam., scattered or in large clusters, subglobose, becoming erumpent through the host thallus and ± completely exposed, with a shortly papillate neck, ostiolate, black. Peridium carbonaceous, comprising 3-6 layers of radially compressed thick-walled dark brown globose to angular cells to 9 µm diam. Interascal tissue absent, the ostiole lined internally with very short periphyses 8-12 µm long and 3-3.5 µm diam. Asci in a basal fascicle, forming in a gelatinized matrix, 30-38 x 12-17 µm, clavate to cylindric-clavate, with a markedly thickened apex when young, fissitunicate, not staining in iodine, 8-spored. Ascospores biseriately arranged, (9-) 9.5-13.5 (-14.5) x 5.5-7.5 (-8) µm, ellipsoidal to broadly ellipsoidal, the ends rounded, hardly constricted at the single ± median septum, dark brown, thick-walled, verrucose (best observed in immature spores), without a perispore, gelatinous sheath or appendages.