Cyathus olla

Terminal hyphae of the outer peridium hair-like, virtually hyaline or with only faint ochraceous intracellular pigment, up to 14 µm wide, thick-walled, with rounded apices.

Peridiole formed by hyaline hyphae, widely separated by gelatinization, very slender, up to only 4 µm wide, clamped.

Basidia clavate, up to 40 µm long, with basal clamp connections, 4-spored.

Spores ellipsoidal, with a more pointed end corresponding to the apiculus, smooth, hyaline, moderately thick-walled, inamyloid in Melzer's reagent.