Cortinarius vibratilis Fr. subgenus Myxacium Cap 2-5cm across, hemispherical then convex to domed; orange, slightly hygrophanous, lighter when dry, darker when wet; glutinous. Gills adnate; pallid reddish ochre then more cinnamon. Stem 40-70 x 4 -l0mm, often swollen at the base, but sometimes tapering and appearing root-like; white discoloring orangy in places, sometimes showing a ring zone; glutinous. Flesh whitish or a touch ochre. Odor slight. Taste very bitter. Spores ellipsoid, roughened, 6-8.4 x 4 –5µ, quotient 1.5. Deposit rusty brown. Habitat in coniferous or deciduous woods. Frequent. Found in Europe and northern North America. Season September-November. Not edible. Comment The small size and very bitter taste help to identify this species.