Pseudosperma rimosum

Formerly known as Inocybe rimosa, occurring along path edges and in woodlands under both broadleaved trees and conifers, with a conical to slightly flattened pileus with a prominent central umbo, 2 to 7 cm across, brown, darker at the centre, with radiating split fibrils exposing a paler background, adnate whitish to olivaceous-brown lamellae, a solid white to cream cylindrical stipe, spermatic odour, and sweetish to faintly bitter taste.

Pileipellis a cutis of parallel hyphae 5 to 12 µm wide, containing yellowish-brown intracellular pigment, septate with prominent clamp connections.

Caulocystidia abundant in the upper stipe, cylindrical to clavate, grouped in fascicles.

Cheilocystidia subcylindrical, clavate to slightly fusiform, 35 to 50 µm long, 12 to 20 µm wide, some septate, thin-walled.

Pleurocystidia absent.

Basidia clavate, 25 to 40 µm long, 10 to 12 µm wide, clamped at the base, 4-spored.

Spores ellipsoidal, smooth, flattened on one side, pale yellowish-brown under the microscope, 10 to 12.5 µm long, 5.5 to 7 µm wide, with an eccentric hyaline apiculus at one end, containing oil droplets.