Entoloma nidorosum (Fr.) Quél. (illustrated 50% life size) Cap 3–7cm across, convex then expanded and slightly umbonate or depressed, margin often wavy; pale grey, becoming paler with age. Stem 50–100×3–15mm; white to whitish. Flesh white; watery; smell strongly nitrous when first collected, but soon fading. Gills whitish-pallid at first, becoming flesh-pink. Spores 7–9×6–8¼, subglobose, angular. Spore print pink. Habitat damp deciduous woods; late summer to late autumn. Occasional. Not edible. Note Noordeloose (1992) synonymizes this species with Entoloma rhodopolium (above), but for the moment I am keeping both names because of the very different scent and colour.