Agaricus subrutilescens

Agaricus subrutilescens, also known as the wine-colored agaricus, is a mushroom of the genus Agaricus. It was first described scientifically in 1925 as Psalliota subrutilescens,^[1] and later transferred to Agaricus in 1938.^[2]

Agaricus subrutilescens
Scientific classification
Domain:	Eukaryota
Kingdom:	Fungi
Division:	Basidiomycota
Class:	Agaricomycetes
Order:	Agaricales
Family:	Agaricaceae
Genus:	Agaricus
Species:	A. subrutilescens
Binomial name
Agaricus subrutilescens (Kauffman) Hotson & D.E.Stuntz (1938)
Synonyms
Psalliota subrutilescens Kauffman (1925)

Agaricus subrutilescens Mycological characteristics
	Gills on hymenium
	Cap is convex
	Hymenium is free
	Stipe has a ring
	Spore print is brown
	Ecology is saprotrophic
	Edibility is edible but not recommended

Description

Agaricus subrutilescens has a cap that is 5–15 cm (2–6 in) across, dry, and has many wine to brown colored fibrils, especially near the center.^[3] The gills are close and white at first, turning pinkish and then dark brown in age.^[4] The stalk has a skirt-like ring and is 4 to 20 cm (1+5⁄8 to 7+7⁄8 in) long, 1–3 cm (3⁄8–1+1⁄8 in) thick, white, and covered with soft woolly scales below the ring.^[3] The flesh is white and does not stain, and the odor and taste are mild.^[3]

The purplish fibrous cap and shaggy white stem differentiate this mushroom from others which resemble it. Similar species include Agaricus hondensis and Agaricus moelleri.^[3]

This mushroom is variously described as edible,^[3] inedible,^[5] or responsible for causing gastric upset.^[6]

Habitat and distribution

The mushroom fruits in undisturbed mixed woods in Western North America and Japan. It grows by itself or scattered in small clusters,^[4] often under redwood, pine, or alder. Recently this mushroom has been identified in New Zealand and Australia.^[7]

See also

• List of Agaricus species

References

1. Kauffman CH. (1925). "The fungus flora of Mt. Hood, with some new species". Papers of the Michigan Academy of Sciences. 5: 115–48.
2. Hotson JW, Stuntz DE. (1938). "The genus Agaricus in Western Washington". Mycologia. 30 (2): 204–34. doi:10.2307/3754557. JSTOR 3754557.
3. Davis, R. Michael; Sommer, Robert; Menge, John A. (2012). Field Guide to Mushrooms of Western North America. Berkeley: University of California Press. p. 229. ISBN 978-0-520-95360-4. OCLC 797915861.
4. Trudell, Steve; Ammirati, Joe (2009). Mushrooms of the Pacific Northwest. Timber Press Field Guides. Portland, OR: Timber Press. pp. 191–192. ISBN 978-0-88192-935-5.
5. Phillips, Roger (2010). Mushrooms and Other Fungi of North America. Buffalo, NY: Firefly Books. p. 220. ISBN 978-1-55407-651-2.
6. Miller Jr., Orson K.; Miller, Hope H. (2006). North American Mushrooms: A Field Guide to Edible and Inedible Fungi. Guilford, CN: FalconGuide. p. 282. ISBN 978-0-7627-3109-1.
7. New edition. Australian Agaricusselbyshrooms.com.au Archived 19 May 2019 at the Wayback Machine