Briancoppinsia cytospora  

Anamorph: conidiomata pycnidial, (40-) 50-80 (-120) µm diam., partly immersed in the host thallus or apothecia, often becoming almost superficial, dark brown to black, rather irregular in form but usually subglobose, the base somewhat applanate, initially with a punctiform ostiole, when overmature with an enlarged opening that may reveal the white conidial matrix inside the pycnidium. Setae absent. Conidiomatal wall 5-7 µm thick, of a few layers of brown to olivaceous intertwined brown hyphal cells 2.5-3 µm diam., K+ dark olivaceous. Pycnidial gel I+ and K/I+ red. Conidiophores absent. Conidiogenous cells lining the inner wall, (4–) 5–7 (–7.5) x (2–) 3–5 (–6.5) μm, ampulliform, apparently not proliferating, hyaline, smooth-walled. Conidia (4.5–) 6–7 (–8) x (1–) 1.5–2 (–2.5) μm, l/b ratio (2.3–) 3.0–4.0 (–5.3), narrowly ellipsoidal, usually slightly curved, the apex rounded and the base truncate, hyaline, aseptate, smooth- and thin-walled, not guttulate, without an epispore, gelatinous sheath or appendages.
Teleomorph: not known.