Thallus pale, inconspicuous, endoxylic. Anamorph: not known. Teleomorph: ascomata apothecia, to 100 µm diam., black or dark brown, flat or rarely convex, sessile, with a colourless hypothecium. Interascal tissue of paraphyses with dark apical caps forming an olivaceous epithecium. Asci 12- to 16-spored with a Lecanora-type apex. Ascospores 5–7 × 2–4 µm, ellipsoidal, aseptate.