En cherchant encore un peu, je pense qu'il s'agit de Cortinarius brunneus
Description de Funga Nordica :
"With Picea; stem 8-15 mm broad; universal veil usually forming a distinct girdle on the stem;
sp 8-9.5 x 6-7 μm (fig. 739B). Cap 35-80 mm, bell-shaped to conical, later low convex with a
rounded or sometimes conical umbo, sometimes narrowly pellucid-striate, dark red brown
to umber, sometimes with bluish tints, strongly hygrophanous; gills medium spaced, dark
brown; stem 60-130 x 8-15 mm, cylindrical to clavate, greyish white fibrillose, later brown;
universal veil white to brownish white; flesh dark red brown, sometimes with a bluish tint;
with age blackish brown; mycelium white or bluish; smell indistinct or slightly raphanoid;
exsiccates blackish. Sp broadly ellipsoid to subglobose, moderately verrucose, more strongly
at apex, dextrinoid to fairly strongly dextrinoid; gill trama hyphae with dark spots, ± zebra-
striate incrusted, best seen in exsiccates. In mesic Picea forests; late summer to autumn;
very common in hemib.-bore., occasional in temp.; DK (lc), FI (lc), NO (lc), SE (lc). – CFP
B07, GCI B31, R&H 522, Sieniop 192, Ves 356.
C. brunneus (Pers.: Fr.) Fr"
