Fibret slørsopp, Cortinarius glaucopus. Fibret slørsopp med flumpet fot. Cortinarius glaucopus, commonly known as the blue-foot webcap, is a basidiomycete mushroom of the genus Cortinarius native to Europe and North America. a sticky-when-fresh, variously colored (grays, browns, and olives) cap that becomes radially streaked with innate fibrils; a stem that features a rimmed, short-bulbous base and bluish hues (at least when young). Gills that are initially purple to lilac; and fairly small, slightly roughened spores
Within the genus Cortinarius, it is classified in the subgenus Phlegmacium and section Glaucopodes. A 2014 genetic study confirmed it was syonymous with C. glaucopoides and that Cortinarius subrubrovelatus was a distinct species. Other close relatives include C. subfoetens and C. pansa Common names in other languages include Schwachknolliger Klumpfuss, Cortinaire à pied glauque (French) and Szálaskalapú pókhálósgomba.
The fruit bodies of this fungus have convex caps 4 to 10 cm (1.6 to 3.9 in) across and ochre or tawny in colour with prominent darker brown fibres. Like other members of the genus, young mushrooms are covered in a web-like veil (cortina) from the cap margin to the stipe.[7] The bulbous stipe is pale lilac-blue initially with lower parts fading to yellow-white. The flesh is yellow-white with a blue hue in the upper stipe. The lilac-blue gills are adnate or free, and become brown as the spores mature. The smell, if present, is slightly mealy. The spore print is red-brown and the spores measure 6.5–8.5 by 4.5–5 µm. Fruit bodies appear from August onwards into autumn in deciduous and coniferous forests, often in profuse numbers. It can be found in fairy rings. Cap: 3-12 cm; convex, becoming broadly convex or nearly flat; sticky when fresh and young, but often dry when collected; bald over the center and silky toward the margin; developing radial streaks of innate fibers; variable in color, ranging from grayish olive to steely gr