Resinoporia cretacea

Species typical of decaying coniferous wood, especially pine or fir, with resupinate basidiomes spreading up to 40 cm across, with 4 to 6 angular pores per mm, white to cream with development, easily disintegrating with a cheese-like texture to give way to new pores, with a pleasant, persistent odor and bitter taste.

Hyphal system dimitic, with very thick-walled skeletal hyphae, without septa, slightly amyloid, 3 to 5 µm in diameter, unbranched; generative hyphae thin- to slightly thick-walled, 2 to 5 µm wide, septate and clamped.

Cystidia absent, but cystidioles abundant, subcylindrical to fusiform, sinuous, hyaline or with faint yellowish intracellular pigment, 12 to 22 µm long and 4 to 6 µm wide.

Basidia clavate, 13 to 20 µm long, 5 to 8 µm wide, with basal clamp connections and four-spored.

Spores ellipsoidal, smooth, hyaline, thin- to slightly thick-walled, 4.5 to 6.5 µm long, 3 to 4 µm wide, containing one or more oil droplets inside, and inamyloid in Melzer's reagent.

Herbarium material available: JTP2687/25.