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Agaricus bitorquis (Quél.) Sacc. 1887

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Exotic
Present
New Zealand
Political Region
Type locality France. 1st Record 1970 (PDD 84237)

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(Quél.) Sacc.
Quél.
Sacc.
1887
998
ICN
species
Agaricus bitorquis

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bitorquis

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Agaricus bitorquis (Quél.) Sacc. 1887

Pileus (30-)50(-70) mm diam., thick, fleshy, convex when young, finally broadly convex-applanate, surface silky to fibrillose, white (N9.5) when young, bruising orchraceous brown (7.5YR 6/4-4/4), with soil particles often adhering to surface; margin thin, inrolled edge with remnants of veil when young; lamellae insertion free, thin, crowded, pink (5R 8/4) when young, finally moderate brown to dark brown (5YR 4/4-3/2), edge pale and sterile; trama parallel to irregular. Stipe 25-45 x 10-30 mm, central, solid, cylindrical, to widening at centre, base narrowing, surface smooth to fibrillose, white (N9.5) above annulus, browning below annulus (5YR 4/4-3/2). Annulus double: lower brownish (5YR 4/4-3/2), peronate, prominent; upper white (N9.5), pendant, surface fibrillose, indistinct. Flesh slowly becoming reddish brown (5R5/8-2.5YR5/8) on cutting or on bruising; odour and taste pleasant. Schaffer's cross-reaction negative.
Basidia (2-)4-spored, 22-38 x 5-11 µm, clavate with sterigmata 4-8(-10) µm. Cheilocystidia 12-37 x 6-11 µm, broadly clavate, hyaline to fawn, abundant. Basidiospores dark brown in mass, size (6.9-)7.4(-7.9) x (5.5-)6.0(-6.4) µm, elongation (1.1-)1.3(-1.4) µm, ellipsoid, pale brown to brown in water, refractive centre (1-2 droplets), apiculus lateral, germ-pore not visible.
Gregarious, may be hypogean in lawn or pasture. Good edible quality.

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Agaricus bitorquis (Quél.) Sacc. 1887
Agaricus bitorquis (Quél.) Sacc. 1887
Agaricus bitorquis (Quél.) Sacc. 1887
Agaricus bitorquis (Quél.) Sacc. (1887)
Agaricus bitorquis (Quél.) Sacc. 1887
Agaricus bitorquis (Quél.) Sacc. (1887)
Agaricus bitorquis (Quél.) Sacc. 1887
Agaricus bitorquis (Quél.) Sacc. (1887)
Agaricus bitorquis (Quél.) Sacc. 1887
Agaricus bitorquis (Quél.) Sacc. 1887
Agaricus bitorquis (Quél.) Sacc. (1887)
Agaricus bitorquis (Quél.) Sacc. 1887
Agaricus bitorquis (Quél.) Sacc. (1887)
Agaricus bitorquis (Quél.) Sacc. 1887
Agaricus bitorquis (Quél.) Sacc. (1887)
Agaricus bitorquis (Quél.) Sacc. 1887
Agaricus bitorquis (Quél.) Sacc. 1887
Agaricus bitorquis (Quél.) Sacc. (1887)
Agaricus bitorquis (Quél.) Sacc. 1887
Agaricus bitorquis (Quél.) Sacc. (1887)
Psalliota bitorquis Quél. (1884)
Agaricus bitorquis (Quél.) Sacc. 1887

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Agaricus bitorquis (Quél.) Sacc. 1887
Netherlands
Agaricus bitorquis (Quél.) Sacc. 1887
New Zealand
Dunedin
Agaricus bitorquis (Quél.) Sacc. 1887
New Zealand
Mid Canterbury
Agaricus bitorquis (Quél.) Sacc. 1887
New Zealand
Nelson
Agaricus bitorquis (Quél.) Sacc. 1887
New Zealand
North Canterbury
Agaricus bitorquis (Quél.) Sacc. 1887
New Zealand
Wanganui
Agaricus bitorquis (Quél.) Sacc. 1887
United Kingdom
Agaricus bitorquis (Quél.) Sacc. 1887
United States

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1cb17cc1-36b9-11d5-9548-00d0592d548c
scientific name
Names_Fungi
1 January 2000
19 October 2022
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