Echinoderma hystrix

Suprapellis formed by catenulate globose to cylindrical hyphae, up to 25 µm wide, mostly with brown intracellular pigment.

Cheilocystidia clavate to vesiculose, up to 20 µm long by 9 µm wide, with brown pigment conferring the characteristic dark gill edge.

Basidia clavate, up to 20 µm long, with basal clamp connections, 4-spored.

Spores cylindric-ellipsoidal to slightly fusiform, smooth, hyaline, with a lateral apiculus at one end, vacuolar content, and markedly dextrinoid in Melzer's reagent.