Coprinopsis atramentaria

Filamentous pileipellis composed of hyaline, moderately thick-walled hyphae, arranged parallel and clamped.

Cheilocystidia and pleurocystidia multiform, cylindrical, clavate, predominantly fusiform and some even bifurcate, large (up to 100 µm long).

Basidia clavate, up to 32 µm long, strongly widened at the apex (up to 10 µm wide), 4-spored.

Spores ellipsoidal, brown under the microscope, smooth, with an inconspicuous slightly eccentric apiculus at one end and a truncated germ pore at the opposite end.

Herbarium material available: JTP2103/24 and JTP2344/25.