Sistotrema octosporum

On decaying plant debris or wood on the ground, with completely resupinate basidiomes, white to greyish with faint ochre to yellowish tinges, slightly granular surface, soft in consistency and easily separable from the substrate.

Hyphal system monomitic, with cylindrical hyphae, slightly thick-walled, hyaline or with only faint brownish pigment inside, 2 to 4 µm wide, septate and bearing coarse, prominent clamp connections.

Cystidia absent.

Basidia subcylindrical to urniform, 15 to 25 µm long, 4 to 6 µm wide, with basal clamp connections, bearing six to eight sterigmata.

Spores ellipsoidal with one flattened side, smooth, hyaline, thin-walled, with an eccentric apiculus at one end, 5 to 6.5 µm long, 2.5 to 3 µm wide, containing oil droplets (guttules) inside, and inamyloid in Melzer's reagent.

Herbarium material available: JTP2077/24.