Agaricus bitorquis (Quél.) Sacc. syn. A. edulis (Witt.) Møller & Schaeff. syn. A. campestris subsp. bitorquis(Quél.) Konrad & Maubl. syn. Psalliota rodmanii (Peck) Kauffm. Scheidenegerling Champignon de trottoirs Cap 4–10cm across, convex soon flattened, white with faintly ochraceous flakes. Stem 30–60 x 15–20mm, white with two separate sheathing rings, the lower thinner and resembling a volva. Flesh white, tinged faintly pink on cutting. Taste mushroomy, smell pleasant. Gills dirty pink at first, soon clay, finally dark chocolate brown. Cheilocystidia thin-walled, clavate. Spore print brown. Spores subglobose, 4–6.5 x 4–5µ. Habitat in gardens and at roadsides, sometimes found growing through asphalt. Season late spring to autumn. Occasional. Edible – good. Found In Europe and north America.