Lachnellula subtilissima

A species fruiting on small decaying twigs of coniferous wood, cup- or disc-shaped, 2-7 mm in diameter, bright yellow with a whitish margin.

Marginal hairs hyaline, septate, thick-walled, 4-5 µm wide, with fine surface incrustations.

Asci 8-spored, with biseriate to irregular spore arrangement within the ascus, 50-70 µm long and 5-7 µm wide, simple-based (croziers absent).

Paraphyses filiform, septate, without distinct inflations, 2-3 µm wide, projecting above the level of the asci.

Ascospores cylindrical to subfusiform, with one end slightly more pointed, smooth, hyaline, thin-walled, containing minute lipid droplets inside.