Cortinarius crassus Fr. sensu Smith subgenus Phlegmacium Cap 10-20cm across, slightly convex or flat; buff-colored then cinnamon brown; soon dry, smooth. Gills adnexed; pallid buff at first, then cinnamon brown. Stem 50-80 x 15-40mm, equal; whitish; fibrillose. Flesh off-white with brownish areas. Odor slight. Taste mild. Spores lemon-shaped, lightly roughened, 10-11.6 x 6-6.7µ, quotient 1.7. Deposit rusty brown. Habitat under conifers and possibly maple. Found in the Pacific Northwest, in Colorado and other parts of the Rockies, and in the Great Lakes region. Season August-October. Not edible. Comment The flesh goes yellow with KOH. I could not see cheilocystidia nor could Smith, but in Europe cheilocystidia (albeit looking like basidia) are found.