Leucocoprinus longistriatus

Leucocoprinus longistriatus
Scientific classification
Domain:	Eukaryota
Kingdom:	Fungi
Division:	Basidiomycota
Class:	Agaricomycetes
Order:	Agaricales
Family:	Agaricaceae
Genus:	Leucocoprinus
Species:	L. longistriatus
Binomial name
Leucocoprinus longistriatus (Peck) H.V. Sm. & N.S. Weber (1982)
Synonyms
Lepiota longistriata Peck (1898)

Leucocoprinus longistriatus 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 longistriatus is a species of mushroom producing fungus in the family Agaricaceae. ^{[1] [2]}

Taxonomy

It was first described in 1898 by the American mycologist Charles Horton Peck and classified as Lepiota longistriata. ^[3]

In 1982 it was reclassified as Leucocoprinus longistriatus by the mycologists Helen Vandervort Smith and Nancy S. Weber. ^[4]

Description

Leucocoprinus longistriatus is a small dapperling mushroom with thin (2-6mm thick) white flesh.

Cap: 4.3–8 cm wide, convex or flat with the cap edges sometimes lifting upwards with age. The umbo can be distinct or not present when mature and the cap margins have finely striate or plicate grooves running almost to the centre when mature. The surface is pale yellow, white or grayish and is covered in fine scales that are easily removed whilst the centre is brown to dark red surrounding the umbo. Stem: 4–8.3 cm long and 3.6mm thick tapering up from a bulbous base of 6-12mm when mature. The surface is pale yellow or white and smooth but stains a dull ochre colour when young stems are handled, the interior flesh is hollow. The small, ascending stem ring has pale brown edges and is located below the middle of the stem and is often just above the base (inferior to basal) however it may disappear. Gills: Yellowish white, becoming darker with maturity or when dry. Crowded and free with slight tufts on the edges. Spores: Elliptical or ovate lacking a distinct pore. Non-dextrinoid. 6–8 x 4.5-5 μm. ^{[3] [4]}

Habitat and distribution

Peck described the species as growing in gardens in Alabama July with specimens also found in Cuba in gardens and amongst grass and in Jamaican woodland. ^[5]

In a 1907 study the American mycologist Andrew Price Morgan documented the species growing in 'rich soil in gardens' in Alabama. ^[6]

In 1937 Johannes Rick documented the species in Brazil but cited the name as Lepiota longestriata Peck. He stated that it grew in gardens and forests. ^[7]

The 1982 study examined specimens found growing in tufts or scattered on wood chips and on soil under sweet gum and live oak trees. They were found in Jackson county, Mississippi. ^[4]

References

1. "Species fungorum – Leucocoprinus longistriatus (Peck) H.V. Sm. & N.S. Weber, Contr. Univ. Mich. Herb. 15: 299 (1982)". www.speciesfungorum.org. Retrieved 19 July 2022.
2. "Mycobank Database – Leucocoprinus longistriatus".
3. Torrey Botanical Club.; Club, Torrey Botanical (1898). Bulletin of the Torrey Botanical Club. Vol. 25. New York: Torrey Botanical Club. p. 368.
4. Smith, Helen V.; Weber, Nancy S. (1982). "Selected Species of Leucocoprinus from the Southeastern United States". Contributions from the University of Michigan Herbarium. Vol. 15. University of Michigan Herbarium. p. 299.
5. Mycological Society of America.; America, Mycological Society of; Garden, New York Botanical (1911). Mycologia. Vol. 3. [Bronx, etc.]: New York Botanical Garden. pp. 85–86.
6. Morgan, A. P. (1907). "North American Species of Lepiota (Concluded)" . The Journal of Mycology. 13 (1): 3. doi:10.2307/3752459. ISSN   1052-0368. JSTOR   3752459 – via www.jstor.org.
7. Rick, J. (1937). "Agarici Riograndenses". Lilloa (in European Spanish). 1: 326. Retrieved 19 February 2023– via www.lillo.org.ar.