Crepidotus caspari

Cutis formed by hyaline, interwoven hyphae, hyaline or with only slight ochraceous intracellular pigment, highly compacted, up to 10 µm wide and with clamped septa.

Cheilocystidia very abundant, up to 75 µm long, polymorphic, cylindrical, sinuous, some with outgrowths, even subcapitate.

Basidia clavate, up to 30 µm long, with basal clamp connections, 4-spored.

Spores ovoid to short ellipsoidal, thick- and verrucose-walled, yellow under the microscope with darker warts, and an inconspicuous eccentric apiculus at one end.