On needles beds and among debris of coniferous
trees, particularly Pinus on poor soil. It can be found from
May to late autumn. See Aronsen (1987). It is generally a rather rare species in Europe but can locally be quite common. Widely distributed in south Norway.
mm across, hemisherical to parabolical, flattening with
age, often somewhat depressed at the centre or with a low umbo,
glabrous, sulcate, translucent-striate, lubricous, pale
brown to brown, darker at the centre, often sepia brown at the centre and grey-brown towards the margin. Lamellae
16-20 reaching the stipe, ascending to subhorizontal, broadly adnate to somewhat decurrent,
with age somewhat rugulose and dorsally intervenose, white, grey-white to pale brownish. Stipe
20-60 x 1-2 mm, hollow, equal or at times somewhat wider at
the apex, terete, straight to somewhat flexuous, cartilaginous, delicately pruinose above, glabrous for the greater part, shiny when dry,
glutinous when wet, sometimes with a slimy coating, grey to brown or yellowish brown, paler to whitish above, darker towards the base,
which is covered with white fibrils. Odour
22-27 x 7-8 µm, slender-clavate, 4-spored, with sterigmata up to 7 µm long. Spores
7-9 x 3.5-5 µm, Q 1.7-2.2, Qav~1.9, pip-shaped to subcylindrical, smooth, amyloid. Cheilocystidia
13-33 x 6-12 µm, forming a sterile band, clavate, short- to long-stalked,
covered with narrow to fairly coarse, short to longer, straight to
curved, simple to branched, cylindrical excrescences 0.5-10 x 0.5-1.5 µm. Pleurocystidia similar. Lamellar trama vinescent in Melzer's reagent. Hyphae
of the pileipellis 2-5 µm wide, embedded in gelatinous matter, covered with simple to branched, cylindrical excrescences, tending to form dense masses. Hyphae
of the cortical layer of the stipe 2-3 µm wide, embedded in gelatinous matter, sparsely to densely covered with cylindrical excrescences up to 4 µm long, the terminal cells 3-5 µm wide, sparsely to densely diverticulate. Clamp connections present in all tissues.
Microphotos of cheilocystidia
Mycena clavicularis is a member of
sect. Cinerellae. The adnate, somewhat decurrent
lamellae and the glutinous stipe are typical characters.
with generally numerous, evenly spaced, usually regularly
shaped and narrow excrescences will also identify this species.
It may be confused with Mycena
vulgaris, a species
that equally has a glutinous to viscid stipe, but in the latter both the pileus as well as the stipe are covered with a separable, gelatinous pellicle, and the lammellar
edge can be separated as an elastic-tough thread. The cheilocystidia
are also completely different.
Further images on the internet: