Conidial morph Acremonium-like.
Stroma not present. Ascomata (100–) 120–160 (–170) μm diam. and (120–) 140–170 (–180) μm high, solitary or crowded in groups of 2–8, superficial, seated on an inconspicuous mycelial mat; subglobose to doliiform, glabrous, pale yellow to orange, not collapsing when dry, not changing colour in KOH or lactic acid. Ostiolar disc 140–180 μm diam., flat, with a minute, acute papilla. Peridium composed of angular thin-walled cells, covered by thick-walled hyphae 2–3 μm diam. with rounded to narrowly clavate
tips, agglutinating to form the ostiolar disc. Interascal tissue not seen. Asci 41-48 x 6.5-7.5 µm, clavate, thin-walled, the apex rounded, without an apical ring. Ascospores arranged biseriately, (12.5-) 14-18.5 x (3.5-) 4-4.5 (-5) μm, narrowly fusiform with obtuse ends, slightly constricted at the ± median septum, hyaline, thin-walled, minutely verrucose to spinulose, without a gelatinous sheath.
Description adapted in part from Lechat & Fournier (2017).
Not formally assessed; only known from a single site in GBI but likely to be overlooked.
On dead branches of Cytisus scoparius. Outside of GBI, reported from Cornus sanguinea, Crataegus and Salix, likely to be parasitic on other fungi and found associated with Eutypa lata and Hypocreopsis lichenoides.
One record, from VC14 E Sussex.