 The spore-bearing cells, the asci, are 330–400 µm long by 16–20 µm wide.The ascus has a thickened apical ring that is capped by a hinged operculum, a lid that is opened when spores are to be released from the ascus.The presence of the apical ring beneath the operculum and the slanted opening that results is a condition known as "suboperculate", and is shared with "Cookeina tricholoma" and "Phillipsia domingensis", also in the family Sarcoscyphaceae.