Inosperma maculatum

A species associated with Abies and Fagus, with a spermatic odor, lacking pleurocystidia, and with caulocystidia restricted to the stipe apex.

Pileipellis composed of parallel hyphae, 4-6 µm wide, with faint yellowish-brown encrusting intracellular pigment, septate with clamped septa.

Caulocystidia present only on the upper third of the stipe, clustered in tufts, cylindrical to clavate.

Cheilocystidia very abundant, cylindric-clavate, 40-65 µm long and 11-18 µm wide, hyaline or with faint brownish intracellular pigment, thin- to slightly thick-walled.

Pleurocystidia absent.

Basidia clavate, 25-40 µm long and 8-10 µm wide, with basal clamps, 4-spored.

Spores ellipsoidal to phaseoliform (bean-shaped), smooth- and thick-walled, pale yellowish-brown under the microscope, with an inconspicuous apiculus at one end and internal guttules.

Herbarium material available: JTP2554/25.