Leucocoprinus citrinellus

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Leucocoprinus citrinellus
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Fungi
Division: Basidiomycota
Class: Agaricomycetes
Order: Agaricales
Family: Agaricaceae
Genus: Leucocoprinus
Species:
L. citrinellus
Binomial name
Leucocoprinus citrinellus
(Speg.) Raithelh. (1987)
Synonyms

Lepiota citrinella Speg. (1898)
Lepiota citrinella var. serrata Rick (1937)

Contents

Leucocoprinus citrinellus
Information icon.svg
Gills icon.png Gills on hymenium
Umbonate cap icon.svgFlat cap icon.svg Cap is umbonate or flat
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 citrinellus is a species of mushroom producing fungus in the family Agaricaceae. [1] [2]

Taxonomy

It was first described in 1898 by the Argentinian mycologist Carlo Luigi Spegazzini who classified it as Lepiota citrinella. [3]

In 1937 the Austrian-born Brazilian mycologist Johannes Rick described Lepiota citrinella var. serrata which he considered a variant based on the finely serrated gills and cylindrical spores. However this is now also considered a synonym. [4]

The species was reclassified as Leucocoprinus citrinellus in 1987 by the mycologist Jörg Raithelhuber. [5]

In 1932 the Belgian mycologist Maurice Beeli also classified a species as Lepiota citrinella [6] and it was included in an illustrated book in 1936. [7] However, as the name had already been used by Spegazzini, Beeli's classification was illegitimate. This species was later classified as Leucocoprinus beelianus by the Belgian mycologist Paul Heinemann in 1977. [8]

Description

Leucocoprinus citrinellus is a pale yellow dapperling mushroom which may discolour brownish with age.

Cap: Bright yellow with thin, insignificant flesh. Elliptical when immature and 5-7mm wide expanding to 1.5–2 cm wide and flattening as it ages with a 2-3mm wide umbo. The cap surface is covered in small powdery scales with striations that run from the edges to halfway up the cap. Gills: Free, crowded and yellowy white. Stem: 2–4 cm long and 1.5mm thick expanding slightly towards the base which is wider but not bulbous and presents with sparse white, cottony mycelium. The stem surface is yellow white and also powdery or scaly (furfuraceous) and the interior flesh hollows slightly with age. The yellowy white stem ring is thin, membranous and descending. It is persistent but movable and also exhibits scales on the edges. Spores: Ovate or subequilateral. 6 x 4 μm. [3] [4]

Habitat and distribution

L. citrinellus is scarcely recorded and little known. Spegazzini observations were made based on specimens from Argentina [3] whilst Rick's observations were made in the State of Rio Grande do Sul, Brazil. [4] The GBIF only list a small number of observations from Brazil. [9]

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References

  1. ↑ "Species Fungorum - Leucocoprinus citrinellus (Speg.) Raithelh., Metrodiana 15(1): 9 (1987)". www.speciesfungorum.org. Retrieved 2022-07-19.
  2. ↑ "Mycobank Database - Leucocoprinus citrinellus".
  3. 1 2 3 Spegazzini, Carolo (1899). "Fungi Argentini novi v. critici" (PDF). Anales del Museo Nacional de Buenos Aires. 6 (2): 90 – via Servicio Geológico Minero Argentino (SEGEMAR).
  4. 1 2 3 Rick, J. (1937). "Agarici Riograndenses (Agaricales de Río Grande)". Lilloa (in Spanish): 342. ISSN   2346-9641.
  5. ↑ "Species Fungorum - Leucocoprinus citrinellus (Speg.) Raithelh., Metrodiana 15(1): 9 (1987)". www.speciesfungorum.org. Retrieved 2022-07-26.
  6. ↑ Beeli, M. (1932). "Fungi Goossensiani: IX Genre Lepiota". Bulletin de la Société Royale de Botanique de Belgique / Bulletin van de Koninklijke Belgische Botanische Vereniging. 64 (2): 206–222. ISSN   0037-9557. JSTOR   20791651.
  7. ↑ Beeli, Maurice; Goossens-Fontana, M (1936). "Flore iconographique des Champignons du Congo Fascicule 2". Fungus Flora of Tropical Africa - Flore des Champignons d'Afrique Tropicale (in French). Retrieved 2022-07-25.
  8. ↑ "Species Fungorum - Leucocoprinus beelianus Heinem., Bull. Jard. Bot. natn. Belg. 47(1-2): 83 (1977)". www.speciesfungorum.org. Retrieved 2022-07-26.
  9. ↑ "GBIF". www.gbif.org. Retrieved 2022-07-26.
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