Nom latin:Agaricus xanthodermus var. lepiotoides Maire 1910 Synonymes:Index Fungorum 06.12.2015: Agaricus xanthodermus Genev. 1876 Habit de la croissance:
Cup: 6-10 cm across, young hemispherical and in cross section trapezoidal, later convex to widespread, first gray brown fine scaly, soon tearing into large, linen-engine scales or floes, between that is visible whitish cup flesh, margin is long down bent, acute.
Hymenium: lamellae are first whitish, then pink to purple brown, old black brown, narrow, free, on the stem partly forked.
Sporée déposée: dark purple brown
Spores: elliptic, honey brown, thick walled, (4,5)5,5-6,8(7,8) x (3,3)3,6-4,4(5) μm
Pied: 6-8 x 1-1,5 cm, cylindric, over the ring smooth, young whitish, old gray brown, longitudinally fibered to smooth, ring is whitish, membranous, hanging, under side is finely flaky, outside of base and stem flesh is yellowish, whole mushroom is under pressure yellowish, first full, later hollow.
Chair: whitish, if cut rapidly chrome yellow, thick, odor is like carbole or like ink, taste is mild, carbolelike.
Habitat: solitary to gregarious in hardwood forests, gardens and parks, grows from summer to fall.
Remarques: this variety is different from other xanthoderma through rough teared floes cup surface. Basidia with (1-2) 4 sterigmata.