Cortinarius (Phlegmacium) olidus J.E. Lange (illustrated 50% life size) Cap 5–10cm across, convex then flattened to broadly umbonate; dull ochre, often tinged tawny at the centre, cuticle turns brownish with NaOH; centre often breaks up into small, flattened scales. Stem 50–80×10–15mm, 15–25mm wide at swollen to bulbous base; whitish above, yellowish below and covered in scattered ochraceous scales; cortina whitish-yellow. Flesh white; taste mild, smell strong and unpleasant. Gills adnate; whitish to pale buff, then tinged ochraceous. Spores 9.5–12×5–6.5¼, almond-shaped. Spore print rust. Habitat in deciduous woods, less frequently in coniferous woods; autumn. Very rare, vulnerable on Red Data List. Suspect avoid. Note Kibby 2001 observes that Cortinarius cliduchus may well be the same fungus.