Thallus poorly developed, pale grey-white or whitish, blotchy, ± wrinkled-papillate or minutely shallowly verrucose or cracked, effuse or lacking. Apothecia conspicuous, scattered or close together, sessile, constricted at base, round to irregular, 0.2-1.2 mm diam., disc matt or shining, black, epruinose, subconcave to plane, margins persistent, narrow, slightly raised, ± flexuose, concolorous with disc. Epithecium dense, black or brownish-olive, 8-13 µm thick. Hymenium colourless 80-90 µm tall. Hypothecium dark brown-black, 100-150 µm thick. Ascospores rare, 7-8 × 3-3.5 µm.