Leucocoprinus nigricans

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Leucocoprinus nigricans
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Fungi
Division: Basidiomycota
Class: Agaricomycetes
Order: Agaricales
Family: Agaricaceae
Genus: Leucocoprinus
Species:
L. nigricans
Binomial name
Leucocoprinus nigricans
Jezek (1973)
Leucocoprinus nigricans
Information icon.svg
Gills icon.png Gills on hymenium
Conical cap icon.svgFlat cap icon.svg Cap is conical or flat
Adnexed gills icon2.svg Hymenium is adnexed
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 nigricans is a species of mushroom producing fungus in the family Agaricaceae. [1] [2]

Contents

Taxonomy

It was first described in 1973 by the Czech mycologist Bohumil Ježek who classified it as Leucocoprinus nigricans. [3] This species is currently accepted but appears to have received no attention since and may have simply been forgotten about as the issue of Mykologický sborník - Časopis Českých Houbař it was published in is not easily accessible.

Description

Leucocoprinus nigricans is a small white dapperling mushroom with thin (5mm thick) white flesh. Ježek provided only a brief description of this species in Latin and some of the terms used are antiquated now and do not easily translate.

Cap: 2.3cm wide, 1.5cm high and conical when immature expanding to 5.5cm and flattening with age with striations at the edges. The surface is a 'dirty white' colour and has a frosty or fibrous coating when young sometimes with some slight reddening at the top and a sticky surface. Stem: 4.5cm long and 5mm thick with a white, silky and fibrillose surface. Slight striations run vertically up the stem and the base of the stem gradually blackens and may even become black. The white stem ring is located towards the top of the stem but sometimes disappears. Gills: Adnexed, crowded and white. Spore print: White. Spores: Ovoid. 6.5-7.5 x 4-4.5 μm. Smell: Indistinct. Taste: Indistinct. [3]

Habitat and distribution

The specimens studied by Ježek were found growing in groups in Cabo Frio, Brazil in 1971 and the description was published in 1973. Ježek died in Cabo Frio on the first of June 1973 so if he was intending to study this species further, it unfortunately did not happen. [3]

GBIF has no recorded observations for this species. [4]

Etymology

The specific epithet nigricans derives from the Latin for 'blackening' and refers to the colouration of the base of the stem.

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References

  1. ↑ "Species fungorum - Leucocoprinus nigricans Jezek, C.C.H. 50(5-8): 78 (1973)". www.speciesfungorum.org. Retrieved 2022-07-19.
  2. ↑ "Mycobank Database - Leucocoprinus nigricans".
  3. 1 2 3 Ježek, Bohumil (1973). "Mykologický sborník - Časopis Českých Houbař". Mykologický sborník - Časopis Českých Houbař. 50 (5–8): 78.
  4. ↑ "Leucocoprinus nigricans Jezek". Global Biodiversity Information Facility. Retrieved 2022-10-25.
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