Colonies 1-10 mm diam., effuse, brown to dark brown or almost black, slightly shiny, scattered over the infected tissue of the host and on the apothecia, rarely in small tufts, usually loosely to densely caespitose, sometimes velvety or floccose, confluent, grey or dark brown to black. Anamorph: stromata absent. Conidiophores 8–56 (–90) × 3.5–7 μm, somewhat distinguishable from vegetative hyphae, usually in caespitose tufts, erect to decumbent, straight to slightly flexuous, occasionally branched in the lower part, ± cylindrical, (0–) 1–15-septate, often slightly constricted at the septa, brown to dark brown, paler towards the apex, the wall smooth, especially in young conidiophores, in older ones often irregularly verruculose, proliferating with sheath-like wall remnants visible as an irregular fringe. Conidiogenous cells little differentiated, ± cylindrical, sometimes narrowed to the tip, (1.5–) 3–9 μm diam., the fertile loci truncate, unthickened, (1–) 1.5–4(–5) μm diam., not proliferating. Conidia 4–17 × 3–7 μm, catenate, mostly in unbranched chains, varied in shape, slightly constricted at the septa, pale brown to brown, smooth to irregularly verruculose, the apex rounded to attenuated in primary conidia, truncate and sometimes narrowed in secondary ones, the base truncate. Teleomorph: not known.