The cap and stalk
Over 15 cm
Scientific name: Agaricus augustus Fr. 1838
Synonyms: Species Fungorum 06.12.2015:
Agaricus augustus var. albus M.M. Moser 1983
Agaricus augustus var. augustus Fr. 1838
Agaricus augustus var. perrarus (Schulzer) Bon & Cappelli 1983
Agaricus peronatus Massee 1892
Agaricus perrarus Schulzer 1880
Fungus augustus (Fr.) Kuntze 1898
Fungus peronatus Kuntze 1898
Pratella augusta (Fr.) Gillet 1878
Psalliota augusta (Fr.) Quél. 1872
Psalliota peronata Massee 1892
Psalliota perrara (Schulzer) Bres. 1881
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Habit of Growth: Saprotroph
Protection: Mushroom is not protected
Cap: 10-25 cm across, first hemispherical to trapezoidal, later convex, old plane, center is sometimes umbonate, with concentric, appressed, brown fibrillose scales on a cream to pale ocher background, center is usually dark brown and smooth, toward the margin paler, sometimes glabrescent and cream colored if old, margin is inrolled if young, later incurved and hung with veil remnants.
Hymenophore: lamellae are first whitish, later gray red, in age dark purple brown, narrow, free, edges are smooth and sometimes paler.
Spore print: dark purple brown
Spore: elliptic, 7,2-8,8(9,3) x 4,4-5,4(6,3) μm
Stem: 12-20 x 2-3,5 cm, cylindric, toward the base enlarged and clavate, young solid, old hollow, whitish, above the annulus smooth, below it woolly, later ringed and with whitish to pale brownish flocci scales, annulus pendent, membranous, usually plicate, white, upper surface is smooth, lower surface is white flocculose, if bruised yellowing.
Flesh: white, in age pale brown, thick, odor is almond like, taste is mild, nutty.
Habitat: gregarious to grouped in hardwood and coniferous forests, in parks, along forest edges under hardwoods and conifers, grows from summer to fall.