Peziza fimeti

A coprophilous Peziza found on cattle dung, cup-shaped, 1 to 2 cm in diameter, with a yellowish-brown hymenium, a very similar external surface, and very fragile, brittle flesh.

Medullary and ectal excipula poorly differentiated, composed of large hyaline hyphae of textura globulosa-angularis, 40 to 80 µm in diameter.

Asci cylindrical, 8-spored, operculate, 260 to 290 µm long, 15 to 18 µm wide, uniseriate, with basal croziers, and showing an amyloid reaction in Melzer's reagent.

Paraphyses filiform, septate, 3 to 4 µm thick at the base, with apical inflations 4 to 8 µm wide, and yellowish granular contents inside.

Ascospores ellipsoidal, smooth, hyaline, thin-walled, slightly greyish under the microscope, 19.5 to 25 µm long, 9.5 to 12 µm wide, with a homogeneous interior devoid of guttules or vacuoles.