Ascomata 200-350µm, the body globose to pyriform, immersed, mid brown to almost completely hyaline, with a long cylindrical ± hyaline neck 300-1000µm in length and 60-80µm diam, which is easily detached. Peridium composed of several layers of rather small-celled textura angularis, merrging into textura intricata in the neck region. Interascal tissue not seen, but periphyses well-developed. Asci 130-154 x 8-9.5µm, cylindrical, fairly thin-walled, with a short narrow stalk, the apex obtuse to truncate, with a conspicuous apical ring ca 3µm diam, 8-spored. Ascospores usually arranged uniseriately, 18-21 x 5-6µm, fusiform, the ends usually acute, often slightly curved, thin-walled, hyaline, aseptate (apparently sometimes becoming 1- to 3-septate), guttulate, the wall occasionally slightly roughened, without a gelatinous sheath.
Not formally assessed. The species is very inconspicuous, and may be overlooked rather than rare.
In rotten wood of Fagus sylvatica, in close association with old stromata of Diatrype disciformis.
Apparently endemic to GBI. England: Kent; Scotland: Argyll.