Leucocoprinus breviramus

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Leucocoprinus breviramus
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Fungi
Division: Basidiomycota
Class: Agaricomycetes
Order: Agaricales
Family: Agaricaceae
Genus: Leucocoprinus
Species:
L. breviramus
Binomial name
Leucocoprinus breviramus
Leucocoprinus breviramus
Information icon.svg
Gills icon.png Gills on hymenium
Conical cap icon.svgCampanulate cap icon.svg Cap is conical or campanulate
Free gills icon2.svg Hymenium is free
Ring stipe icon.svg Stipe has a ring
Transparent spore print icon.svg
Spore print is white
Saprotrophic fungus.svgEcology is saprotrophic
Mycomorphbox Question.pngEdibility is unknown

Leucocoprinus breviramus is a species of mushroom producing fungus in the family Agaricaceae. [1] [2]

Contents

Taxonomy

It was first described in 1982 by the mycologists Helen Vandervort Smith and Nancy S. Weber who classified it as Leucocoprinus breviramus. The specimens studied and documented were collected by Ervin Hillhouse in 1971. [3]

Description

Leucocoprinus breviramus is a small dapperling mushroom with white flesh.

Cap: 3.5–9 cm wide. Starts bulbous and expands to conical or campanulate (bell shaped) and finally flattens out or becomes concave with the cap edges lifting up in maturity. The surface is snow white with a slight yellowish brown tinge in the centre. It is covered with small woolly scales (floccules) which are denser and finer in the centre becoming sparser towards the cap edges, these scales easily rub off and cover the fingers. The striations at the cap margins are only visible when mature. The cap flesh is white and thin (3-4mm) near the stem and thins out more towards the cap edges. Stem: 5.5-8.0 cm long and 3-5mm thick at the top tapering to 10-12mm at the bulbous base. The surface is white and sometimes stains slightly yellow when handled whilst the interior may be hollow, filled or solid. It is covered with similar woolly scales to the cap below the stem ring but is smooth above. The small, white stem ring is located towards the top of the stem (superior) but it usually disappears and may just leave small traces on the stem. Gills: White, crowded and free. Spores: Ovate to elliptical with a small pore. Dextrinoid. 7.5-9.0 (10) x 5.5-6.5 μm. Smell: Slightly musky. Taste: Mild when raw and similar to button mushrooms when cooked. [3]

In Weber's book 'A Field Guide to Southern Mushrooms' a photograph of this species is included however it appears to be a photo of Leucocoprinus cretaceus so this species may by synonymous considering the very similar description. [4]

Habitat and distribution

L. breviramus is scarcely recorded and little known. The specimens studied were gathered in Brazoria county, Texas in 1971 and Washington county, Mississippi in 1979. The mushrooms were reported as fruiting singly or sometimes in small clusters on grass and on wet hay in the Summer and Autumn. They were reported as appearing most prominently during dry summers and appearing a few days after rain. [3]

Edibility

The species is reported to be edible without ill effects even when eaten in large quantities and described as very good, however this report comes from a single individual so should not be relied upon as an indication of safety. [3]

Similar species

Related Research Articles

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References

  1. "Species fungorum - Leucocoprinus breviramus H.V. Sm. & N.S. Weber, Contr. Univ. Mich. Herb. 15: 300 (1982)". www.speciesfungorum.org. Retrieved 2022-07-19.
  2. "Mycobank Database - Leucocoprinus breviramus".
  3. 1 2 3 4 5 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. pp. 300–301.
  4. Weber, Nancy S. (1985). A field guide to southern mushrooms. Internet Archive. Ann Arbor : University of Michigan Press. ISBN   978-0-472-85615-2.