Tricholoma myomyces (Fr.) Lange, Fenyőpereszke, egérszürke pereszke. Cap I-7cm across, obtusely conic expanding to convex, then flat with a low umbo; margin incurved at first, then often wavy; dark drab gray to brownish gray or blackish gray, generally paler on the margin; dry, densely matted, and hairy on the disc and hairy to scaly elsewhere. Gills arcuate to sinuate, close, broad; light gray, fading near the stem in age, very rarely discoloring with dull yellow spots. Stem 15-70 x 5-10mm, solid or hollow, generally rounded or abruptly tapered; white to pale gray; silky with white or gray hairs. Veil a cortina of white or gray hairs that leaves a faint, quickly disappearing zone on the stem. Flesh pale gray. Spores ellipsoid, smooth, nonamyloid, 6.7-7.6 x 4.3-4.8ě (4-spored form), 8.6-1 1.4 x 3.8-5.7ě (2-spored form). Deposit white. Habitat in groups or dense clusters under conifers in woods or on lawns. Frequent and sometimes abundant. Found in Europe and widely distributed in northern North America. Season August-October. Edibility not known -avoid.