Mycelium superficial, composed of pale yellow to brown hyphae 1.5-2.5 µm broad, branched and septate, with numerous slight swellings from which the subcuticular hyphae arise.
Anamorph: not known.
Teleomorph: stromata absent. Ascomata thyriothecia, to 300 µm diam., orbicular, scattered, occasionally confluent, shallowly convex. Upper wall composed of narrow elongate wavy closely packed radiating brown cells ca 2 µm broad, extending into a slight fringe. In the ostiolar region the cells are cuboid and ca 2 µm diam. Interascal tissue composed of narrow septate branched pseudoparaphyses 1-1.5 µm diam. Asci numerous, 40-56 x 10-12 µm, ellipsoidal to clavate, thick-walled and fissitunicate, 8-spored. Ascospores 11-14.5 x 3.5-5 µm, hyaline, clavate to slipper-shaped, 1-septate. The upper cell is widest just above the septum, the apex with two ciliate appendages, but these are often lost. Young spores are 4-guttulate.
Not formally assessed, but the species is reasonably common though inconspicuous. It is unlikely to be threatened.
On dead stems of Rubus fruticosus.
Widely distributed, from Cornwall to SW Scotland, Wales, the Channel Is and ROI.