Agaricus arvensis Schaeff. 1774

Phylum: Basidiomycota
(7339)
Class: Agaricomycetes
(7229)
Subclass: Agaricomycetideae
(7229)

Order: Agaricales
(4675)
Family: Agaricaceae
(388)
Genus: Agaricus
(67)

Subgenus: Flavescens
(37)
Section: Arvenses
(18)
Subsection: Arvensis
(6)

• Soup: Creamy mushroom soup
• Sauce: Sauce with Mushrooms
• Sauce: Sauce with Mushrooms
• Risotto: Risotto with Mushrroms
• Mushrooms on the Dalmatian way
• Mushrooms in a potato nest

Name: Horse Mushroom
Scientific name: Agaricus arvensis Schaeff. 1774
Synonyms: Species Fungorum 06.12.2015:
Agaricus arvensis f. arvensis Schaeff. 1774
Agaricus arvensis f. ochraceus Britzelm. 1897
Agaricus arvensis subsp. arvensis Schaeff. 1774
Agaricus arvensis var. abruptus Peck 1893
Agaricus arvensis var. arvensis Schaeff. 1774
Agaricus arvensis var. exquisitus (Vittad.) Cetto 1988
Agaricus arvensis var. fragrans (Cleland & Cheel) C.J. Sheph. 1969
Agaricus arvensis var. iodiformis (Cleland & Cheel) Southcott 1974
Agaricus arvensis var. palustris A.H. Sm. 1940
Agaricus arvensis var. subarvensis Vasas 1990
Agaricus arvensis var. umbrelloideus Bohus 1974
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  Habit of Growth: Saprotroph
Protection: Mushroom is not protected

Cap: 8-15 (18) cm across, hemispherical later conic-convex to plane, sometimes with an obtuse umbo, first white surface, finely radially fibrillose to almost smooth, later splitting into fine appressed squamules, and strongly turning yellow to yellow ocher, margin incurved and acute.
Hymenophore: lamellae are free, smooth, edges white to pink color later black brown.
Spore print: purple brown
Spore: elliptic, 6,3-7,7 x 4,4-5,3 μm
Stem: 8-15 x 1-2 cm white or yellow, cylindrical, fragile, hollow when old, somewhat enlarged toward the base, sometimes two layered, white and yellow color, lower surface coarsely floccose, upper surface smooth, surface above annulus white and smooth, bellow it white, smooth and squamulose, yellowish if touched.
Flesh: white, under cuticle yellow, odor strongly anise like, taste nutty or almond like.
Habitat: gregarius grouped in meadows, pastures, at the edges of forrests, grows from june to october.
Edibility: edible
Remarks: similar is Agaricus silvicola with smaller spores and Agaricus xanthoderma which smells like karbol and is toxic.