Flammulaster granulosus

Suprapellis with a layer of subglobose to ellipsoidal, thick-walled hyphae with faint brown intracellular pigment; underneath, thin-walled filamentous hyphae with short cells, brown intracellular pigment, with simple septa lacking clamp connections.

Cheilocystidia abundant, cylindrical to lageniform, up to 50 µm long.

Basidia clavate, up to 32 µm long, with basal clamp connections, 4-spored.

Spores ellipsoidal to amygdaliform, smooth, moderately thick-walled, yellowish-brown under the microscope, with an eccentric apiculus at one end and granular content.