Leucocoprinus leucothites

*Leucocoprinus leucothites*
Leucocoprinus leucothites
Mycological characteristics
	Gills on hymenium
	Cap is convex or flat
	Hymenium is free
	Stipe has a ring
	Spore print is white
	Ecology is saprotrophic
	Edibility is unknown

Leucocoprinus leucothites
Scientific classification
Kingdom:	Fungi
Division:	Basidiomycota
Class:	Agaricomycetes
Order:	Agaricales
Family:	Agaricaceae
Genus:	Leucocoprinus
Species:	L. leucothites
Binomial name
	Leucocoprinus leucothites; (Vittad.) Redhead (2023)
Synonyms
	Agaricus leucothitesVittad. (1835); Lepiota holosericea(J. J. Planer) Gillet (1874); Leucoagaricus naucinusSinger; Leucocoprinus holosericeus(J. J. Planer) Locq. (1943); Leucoagaricus leucothitesWasser (1977);

Last updated January 04, 2026

Leucocoprinus leucothites, commonly known as the smooth parasol, woman on motorcycle,^[2]ma'am on motorcycle,^[3]white dapperling, or white agaricus mushroom, is a species of agaric fungus found in disturbed areas.

Taxonomy

The species was originally described as Agaricus leucothites by Carlo Vittadini in 1835, and bears similarity to species of that genus.^[4] Solomon Wasser transferred it to Leucoagaricus in 1977.^[5]

In 2023 this species was reclassified as Leucocoprinus leucothites effectively beginning the process of merging the Leucoagaricus and Leucocoprinus genera.^[6]

Description

The mushroom's cap is 4 to 15 centimetres (1+1⁄2 to 6 in) wide,^[7] is granular, white or gray-brown in color then sometimes grayish or pinkish.^[4] The flesh may bruise yellowish and the gills reddish.^[4] The stipe is 5 to 12 cm long, commonly with a wide base, and bruising yellow or brown.^[7] A ring is usually present.^[4] The spores are white, smooth, and elliptical.^[7] They produce a white spore print.^[8]

It could be confused for Agaricus species as well as the deadly Amanita ocreata .^[2]^[7]

Distribution and habitat

Leucocoprinus leucothites can be generally found in disturbed, grassy areas such as gardens and parks, and sometimes in forests.^[4]^[8] It has a worldwide distribution with most occurrences in Europe and North America.^[9]

Edibility

While sometimes regarded as edible,^[7] the species is suspected of being poisonous due to gastric-upset-causing toxins.^[10] It could also be confused with a deadly Amanita.^[2]^[7]

References

↑ Wood, Michael; Stevens, Fred. "California Fungi: Leucoagaricus leucothites". MykoWeb. Archived from the original on 2018-02-23. Retrieved 2021-02-15.
1 2 3 Arora, David (1986) [1979]. Mushrooms Demystified: A Comprehensive Guide to the Fleshy Fungi (2nd ed.). Berkeley, CA: Ten Speed Press. pp. 299–300. ISBN 978-0-89815-170-1.
↑ Arora, David (February 1, 1991). All That the Rain Promises and More: A Hip Pocket Guide to Western Mushrooms. ISBN 9780898153880.
1 2 3 4 5 Trudell, Steve; Ammirati, Joe (2009). Mushrooms of the Pacific Northwest. Timber Press Field Guides. Portland, OR: Timber Press. p. 76. ISBN 978-0-88192-935-5.
↑ Wasser SP. (1977). "New and rare species of Agaricaceae Cohn. family (in Russian)". Ukrainskiy Botanichnyi Zhurnal (in Russian). 34 (3): 305–8.
↑ Redhead, Scott A. (August 2023). "Nomenclatural novelties" (PDF). Index Fungorum. 551.
1 2 3 4 5 6 Davis, R. Michael; Sommer, Robert; Menge, John A. (2012). Field Guide to Mushrooms of Western North America. Berkeley: University of California Press. pp. 89–90. ISBN 978-0-520-95360-4. OCLC 797915861.
1 2 Audubon (2023). Mushrooms of North America. Knopf. p. 568. ISBN 978-0-593-31998-7.
↑ Leucoagaricus leucothites at Global Biodiversity Information Facility, gbif.org
↑ Miller Jr., Orson K.; Miller, Hope H. (2006). North American Mushrooms: A Field Guide to Edible and Inedible Fungi. Guilford, CN: FalconGuide. p. 55. ISBN 978-0-7627-3109-1.

External links

Mushroom Poisoning: Destroying Angel vs. what's called a Lookalike that many Experts Avoid Eating

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[1] Wood, Michael; Stevens, Fred. "California Fungi: Leucoagaricus leucothites". MykoWeb. Archived from the original on 2018-02-23. Retrieved 2021-02-15.

[Arora1986-2] 1 2 3 Arora, David (1986) [1979]. Mushrooms Demystified: A Comprehensive Guide to the Fleshy Fungi (2nd ed.). Berkeley, CA: Ten Speed Press. pp. 299–300. ISBN 978-0-89815-170-1.

[3] Arora, David (February 1, 1991). All That the Rain Promises and More: A Hip Pocket Guide to Western Mushrooms. ISBN 9780898153880.

[:1-4] 1 2 3 4 5 Trudell, Steve; Ammirati, Joe (2009). Mushrooms of the Pacific Northwest. Timber Press Field Guides. Portland, OR: Timber Press. p. 76. ISBN 978-0-88192-935-5.

[Wasser_1977-5] Wasser SP. (1977). "New and rare species of Agaricaceae Cohn. family (in Russian)". Ukrainskiy Botanichnyi Zhurnal (in Russian). 34 (3): 305–8.

[6] Redhead, Scott A. (August 2023). "Nomenclatural novelties" (PDF). Index Fungorum. 551.

[:0-7] 1 2 3 4 5 6 Davis, R. Michael; Sommer, Robert; Menge, John A. (2012). Field Guide to Mushrooms of Western North America. Berkeley: University of California Press. pp. 89–90. ISBN 978-0-520-95360-4. OCLC 797915861.

[audu-8] 1 2 Audubon (2023). Mushrooms of North America. Knopf. p. 568. ISBN 978-0-593-31998-7.

[9] Leucoagaricus leucothites at Global Biodiversity Information Facility, gbif.org

[Miller2006-10] Miller Jr., Orson K.; Miller, Hope H. (2006). North American Mushrooms: A Field Guide to Edible and Inedible Fungi. Guilford, CN: FalconGuide. p. 55. ISBN 978-0-7627-3109-1.

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