Agaricus bisporus (J.E. Lange) Imbach 1946 var. bisporus
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Agaricus bisporus (J.E. Lange) Imbach, Mitt. Naturf. Ges. Luzern 15 15 (1946) var. bisporus
Agaricus bisporus (J.E. Lange) Imbach 1946 var. bisporus
Nomenclature
(J.E. Lange) Imbach
J.E. Lange
Imbach
1946
15
as 'bispora'
ICN
var.
Agaricus bisporus var. bisporus
Classification
Descriptions
Agaricus bisporus (J.E. Lange) Imbach 1946 var. bisporus
CANTERBURY: near Lake Ellesmere, SW of Motukarara Gun Club, NZMS 260 M36/75-18-, growing naturally in saline soils; Ohoka, NZMS 260 M35/72- 62-; Lake Pukaki region, NZMS 260 H37/79-96- OTAGO: Taiaroa Head, Otago Peninsular, NZMS 260 J44/33-90-, PDD 68567.
Pileus 50-80(-120) mm diam., thick, convex, fleshy, strong brown to brownish orange (5YR 5/4-4/5) scales on white surface (N9.5), bruising reddish (5R 7/6-6/8); margin thick, inrolled when young, finally straight, with remnants of veil; lamellae insertion free, thin, crowded of several lengths, pink (5R 8/4) when young, finally moderate brown (7.5YR 4/4); edge pale and sterile; trama parallel to irregular. Stipe 30-50 x 10-30 mm, central, solid to fistulose, cylindrical, base rounded to narrowing, surface smooth, white (N9.5) above annulus, white to brownish below annulus (7.5YR 4/4-5YR 4/4), slight reddening (5R 6/8) on bruising. Annulus peronate, thick and broad, bifurcated edges, white above (N9.5), brown below (7.5YR 4/4-5YR 4/4) white (N9.5) towards the edges, surface smooth. Flesh gradually reddening (5R 7/6-6/8) on cutting or bruising; odour and taste pleasant. Schaffer's cross-reaction negative.
Basidia (l-)2(-4)-spored, 15-25 x 9-11 µm, broadly clavate, with sterigmata 3-5 µm. Cheilocystidia 30-80 x 7-9 (12) µm, clavate, hyaline, abundant. Basidiospores dark brown in mass, size (6.8-)7.7(-8.5) x (5.6-)6.1(-6.6) µm, elongation (1.0-)1.3(-1.5) µm, broadly ellipsoid, fawn to pale brown in water, refractive centre (2 droplets), apiculus lateral, germ-pore not visible.
Basidia (l-)2(-4)-spored, 15-25 x 9-11 µm, broadly clavate, with sterigmata 3-5 µm. Cheilocystidia 30-80 x 7-9 (12) µm, clavate, hyaline, abundant. Basidiospores dark brown in mass, size (6.8-)7.7(-8.5) x (5.6-)6.1(-6.6) µm, elongation (1.0-)1.3(-1.5) µm, broadly ellipsoid, fawn to pale brown in water, refractive centre (2 droplets), apiculus lateral, germ-pore not visible.
NEW ZEALAND Canterbury, Otago. Commonly cultivated mushroom.
Gregarious or in rings in pasture, often in areas with high manure content. Good edible quality.
Taxonomic concepts
Agaricus bisporus (J.E. Lange) Imbach 1946 var. bisporus
Agaricus bisporus (J.E. Lange) Imbach 1946 var. bisporus
Agaricus bisporus (J.E. Lange) Imbach 1946 var. bisporus
Agaricus bisporus (J.E. Lange) Imbach var. bisporus (1946)
Agaricus bisporus (J.E. Lange) Imbach 1946 var. bisporus
Agaricus bisporus (J.E. Lange) Imbach var. bisporus (1946)
Agaricus bisporus (J.E. Lange) Imbach 1946 var. bisporus
Agaricus bisporus (J.E. Lange) Imbach var. bisporus (1946)
Agaricus bisporus (J.E. Lange) Imbach 1946 var. bisporus
Agaricus bisporus (J.E. Lange) Imbach var. bisporus (1946)
Agaricus bisporus (J.E. Lange) Imbach 1946 var. bisporus
Agaricus bisporus (J.E. Lange) Imbach var. bisporus (1946)
Agaricus bisporus (J.E. Lange) Imbach 1946 var. bisporus
Agaricus bisporus (J.E. Lange) Imbach var. bisporus (1946)
Agaricus bisporus (J.E. Lange) Imbach 1946 var. bisporus
Agaricus bisporus (J.E. Lange) Imbach var. bisporus (1946)
Agaricus bisporus (J.E. Lange) Imbach 1946 var. bisporus
Global name resources
Identification keys
Metadata
1cb1ae8c-36b9-11d5-9548-00d0592d548c
scientific name
Names_Fungi
1 January 2001
6 September 2024