Hygrophorus olivaceoalbus

A small species with large spores, associated with conifers and preferring acidic soils.

Pileipellis with an outer layer composed of filamentous hyphae, 3-5 µm wide, interwoven, widely separated by gelification, with abundant brown intracellular pigment and emergent terminal elements, septate with clamped septa.

Gill edge homomorphic, without differentiated cystidia.

Lamellar trama bilateral.

Basidia cylindric-clavate, 60-80 µm long and 8-13 µm wide, with basal clamps, 4-spored.

Spores ovoid to ellipsoidal, smooth, hyaline, thin-walled, with an eccentric apiculus at one end, vacuolar internal content, inamyloid in Melzer's reagent.