Kees Uljé Coprinus site

Coprinus species (Uljé 1170)



[Copyright © by Uljé]


Macroscopic features

  Pileus 2-4 x 2-3 mm when still closed, up to 8 mm when expanded, first globose, subglobose, ovoid or conical, beige. Veil beige, breaking up in small, woolly-hairy scales, becoming whitish when expanding; the beige colour staying at centre of pileus for a rather long time. Lamellae rather crowded, free, first white, then grey to blackish. Stipe up to 20 x 0.5-1 mm, white, greyish white, somewhat floccose above clavate base.

Microscopic features

  Spores [20,1,1] 4.0-5.6 x 3.3-4.1 µm, ellipsoid or ovoid with rounded apex, rather pale (grey-)brown and central, c. 1 µm wide germ pore; Q = 1.20-1.40, av. Q = 1.30; av. L = 4.9, av. B = 3.7 µm. Basidia 10-24 x 6-8 µm, 4-spored, surrounded by 3-6 pseudoparaphyses. Pleurocystidia 30-70 x 10-14 µm, (sub)cylindrical or slightly utriform. Cheilocystidia 30-60 x 10-15 µm, similar to pleurocystidia. Elements of veil thin-walled, diverticulate, 2-8 µm wide; walls slightly incrusted. Clamp-connections absent.

Habitat & distribution

  On grasses. Probably not rare but overlooked.

Remarks

  This species differs from Coprinus urticicola to which it is closely related, by having distinctly smaller spores and beige coloured basidiocarps.



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