Mycena agrestis Aronsen y Maas Geest

Originale versionem
Pileus 10-20(-25) mm across, at first acutely conical, flattening with age and becoming more or less irregularly campanulate, finally plano-convex, more or less umbonate, or somewhat depressed at the centre, little to shallowly sulcate, translucent-striate, pruinose, glabrescent, viscid, covered with a gelatinous separable pellicle, blackish grey, blackish brown to dark grey-brown, paler when dry, often darker at the centre and the margin. Context thin. Odour indistinct or somewhat farinaceous. Lamellae 20-32 reaching the stipe, tender, arcuate, c. 1 mm broad, more or less rugulose with age, decurrent with a tooth, pale to dark grey, with a separable paler edge. Stipe 30-65 x 1.5-3.5 mm, hollow, egual or somewhat broadened above, curved below, terete to somewhat depressed, smooth, pruinose, glabrescent except for the apex, viscid, greyish, usually darker below, covered with few fibrils at the base.
Basidia 30-40 x 7-9 µm, slender-clavate, 4-spored, with sterigmata up to 6.5 µm long. Spores 9.2-10.3 x 4.7-5.4 µm, Q = 1.8-1.9, pip-shaped, smooth, weakly amyloid. Cheilocystidia 18-32 x 5.5-7 µm, forming a sterile band, clavate, embedded in gelatinous matter, apically covered with comparatively few, unevenly spaced, coarse, occasionally curved, cylindrical to clavate excrescences 2.5-14.5 x 1.5-5.5 µm. Pleurocystidia absent. Lamellar trama dextrinoid, brownish vinescent in Melzer's reagent. Pileipellis an ixocutis of much branched, smooth, hyphae 1.5-2.5 µm wide, the terminal cells 1-1.5 µm wide, apically diverticulate and much branched, with the excrescences 0.9-3.5 x 0.9 µm. Hypoderm made up of parallell, inflated hyphae up to 20 µm wide. Hyphae of the cortical layer of the stipe 1.5-2.5 µm wide, embedded in gelatinous matter, smooth, terminal cells not observed. Clamp connections present at all tissues.