Kees Uljé Coprinus site

Coprinus pyrrhanthes Rom. - (NL: Oranjebruine poederinktzwam, 026.89.0)

Coprinus pyrrhanthes Rom. in Rev. mycol. 16 (1951) 128.

[Copyright © by Hans Bender]

  Closed pileus up to 5 x 4 mm, yellow-brown to orange-brown (Mu. 7.5 YR 4-5/6-8, 10 YR 7/6) at centre, distinctly paler towards margin (10 YR 7/2-8/1), with granular, dark brown (7.5 YR 4/6) flocks (spherocysts), up to 8(-11) mm in diam. when mature. Lamellae narrowly adnate, rather broad and distant, white, brown to blackish; L = 11-21, l = 0-3. Stipe 10-30 x 0.5-1.0 mm, white, somewhat vitreous, pubescent.
  Spores [40,2,1] 6.3-9.3 x 4.8-7.0 µm, av. L = 7.7-8.2, av. B = 5.8-6.4, Q = 1.40-1.60, av. Q = 1.50, ovoid to ellipsoid; germ pore eccentric, c. 1.5 µm wide. Basidia 14-26 x 8-10.5 µm, 4-spored. Pseudoparaphyses 5-7 per basidium. Cheilocystidia 20-50 x 10-30 µm, globose or broadly ellipsoid. Pleurocystidia absent. Pileocystidia 40-75(-90) x 14-27 µm, lageniform to nettle hair-shaped with 5-8 µm wide neck and clavate to capitate, (6-)8-12 µm wide apex. Sclerocystidia absent. Velar spherocysts on pileipellis globose, up to 35 µm in diam. or ovoid and up to 40 x 30 µm, hyalin to thick-walled and incrusted, yellow-brown; walls up to almost 2 µm thick. Clamp-connections absent.

Habitat & distribution

  Gregarious or subfasciculate. On large compost-heap on small chips of wood and on dead leaves. Rare. Known from France, Germany and the Netherlands.

Copyright © by Kees Uljé
Edited for the Web with help from Marek Snowarski Fungi of Poland site