Gymnopilus junonius

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Gymnopilus junonius
Gymnopilus junonius-02.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Fungi
Division: Basidiomycota
Class: Agaricomycetes
Order: Agaricales
Family: Hymenogastraceae
Genus: Gymnopilus
Species:
G. junonius
Binomial name
Gymnopilus junonius
(Fr.) P.D.Orton (1960)
Gymnopilus junonius.png
Approximate range of Gymnopilus junonius
Synonyms
  • Agaricus aureus Bull. (1782)
  • Agaricus junoniusFr. (1821)
  • Lepiota aurea Gray (1821)
  • Pholiota junonia(Fr.) P.Karst. (1879)
  • Pholiota grandis Rea (1903)
  • Pholiota spectabilis var. junonia(Fr.) J.E.Lange (1940)
  • Gymnopilus spectabilis var. junonius(Fr.) Kühner & Romagn. (1953)
Gymnopilus junonius
Information icon.svg
Gills icon.png Gills on hymenium
Convex cap icon.svg Cap is convex
Adnate gills icon2.svg Hymenium is adnate
Ring stipe icon.svg Stipe has a ring
Transparent spore print icon.svg
Spore print is reddish-brown
Saprotrophic fungus.svgEcology is saprotrophic
Mycomorphbox Inedible.pngEdibility is inedible

Gymnopilus junonius is a type of mushroom-forming fungus in the family Hymenogastraceae. Commonly known as the spectacular rustgill, this large orange mushroom is typically found growing on tree stumps, logs, or tree bases. Some subspecies of this mushroom contain the neurotoxic oligoisoprenoid gymnopilin.

Contents

Description

The cap ranges from 8–30 cm (3–12 in) across, is convex to flat, [1] and is bright yellow-orange in younger specimens and orange-brown or reddish brown in older ones, with a dry scaly surface. The flesh is yellow, the odor mild and taste bitter. [1] The stem is 5–25 cm (2–10 in) long, 1–5 cm thick, and often narrows near the base. [1] The frail ring is dusted with rusty orange spores, and the gill attachment to the stem is adnate to sub-decurrent. [1] It stains red with KOH and turns green when cooked. The spore print is rusty orange. Unlike psychoactive relatives in the Psilocybe genus, G. junonius lacks psilocybin and does not stain blue, but smaller specimens occasionally exhibit bruising. [2] This mushroom usually grows in clusters from several to several dozen individuals, but sometimes grows solitary. It is inedible due to its bitter taste.

Gymnopilus junonius Gymnopilus junonius.jpg
Gymnopilus junonius

Similar species

This mushroom is often mistaken for Gymnopilus ventricosus , which also contains no psilocybin and G. luteus and G. subspectabilis, which do.[ citation needed ] It also resembles Armillaria mellea and Omphalotus olivascens . [1]

Distribution and habitat

Gymnopilus junonius is found in Europe, Australasia and South America. [3] [4] [5] It grows in dense clusters on stumps and logs of hardwoods and conifers. This mushroom is most common in moist, lowland wooded areas near rivers.

This species does not occur in North America; however some similar looking species do. These include Gymnopilus ventricosus on the west coast and G. luteus and G. subspectabilis in the midwest and east. [6]

Biochemistry

This mushroom contains bis-noryangonin and hispidin, which are structurally related to alpha-pyrones found in kava. [7] Neurotoxins known as oligoisoprenoids have also been found in this species. [8]

See also

Related Research Articles

<i>Psilocybe</i> Genus of fungi

Psilocybe is a genus of gilled mushrooms, growing worldwide, in the family Hymenogastraceae. Most or nearly all species contain the psychedelic compounds psilocybin and psilocin.

<i>Psilocybe semilanceata</i> Species of fungus in the family Hymenogastraceae, native to Europe

Psilocybe semilanceata, commonly known as the liberty cap, is a species of fungus which produces the psychoactive compounds psilocybin, psilocin and baeocystin. It is both one of the most widely distributed psilocybin mushrooms in nature, and one of the most potent. The mushrooms have a distinctive conical to bell-shaped cap, up to 2.5 cm (1 in) in diameter, with a small nipple-like protrusion on the top. They are yellow to brown, covered with radial grooves when moist, and fade to a lighter color as they mature. Their stipes tend to be slender and long, and the same color or slightly lighter than the cap. The gill attachment to the stipe is adnexed, and they are initially cream-colored before tinting purple to black as the spores mature. The spores are dark purplish-brown in mass, ellipsoid in shape, and measure 10.5–15 by 6.5–8.5 micrometres.

<i>Galerina</i> Genus of saprobic fungi

Galerina is a genus of small brown-spore saprobic fungi, with over 300 species found throughout the world from the far north to remote Macquarie Island in the Southern Ocean. The genus is most noted for some extremely poisonous species which are occasionally confused with hallucinogenic species of Psilocybe. Species are typically small and hygrophanous, with a slender and brittle stem. They are often found growing on wood, and when on the ground have a preference for mossy habitats.

<i>Gymnopilus</i> Genus of fungi

Gymnopilus is a genus of gilled mushrooms within the fungal family Hymenogastraceae containing over 200 rusty-orange spored mushroom species formerly divided among Pholiota and the defunct genus Flammula. The fruit body is typically reddish brown to rusty orange to yellow, medium to large, often with a well-developed veil. Most members of Gymnopilus grow on wood but at times may appear terrestrial if the wood is buried or decomposed. Members of Pholiota and Cortinarius are easy to confuse with Gymnopilus. Pholiota can be distinguished by its viscid cap and duller spores, and Cortinarius grows on the ground. Beginners can confuse Gymnopilus with Galerina, which contains deadly poisonous species.

<i>Gymnopilus luteofolius</i> Species of fungus

Gymnopilus luteofolius, known as the yellow-gilled gymnopilus, is a large and widely distributed mushroom that grows in dense clusters on dead hardwoods and conifers. It grows in late July to November in the east and in the winter on the west coast of North America. It has a rusty orange spore print and a bitter taste.

<i>Gymnopilus aeruginosus</i> Species of fungus

Gymnopilus aeruginosus, also known as the magic blue gym, is a mushroom-forming fungus that grows in clusters on dead wood and wood chip mulch. It is widely distributed and common in the Pacific Northwest. It has a rusty orange spore print and a bitter taste and contains the psychedelic chemical psilocybin. It was given its current name by mycologist Rolf Singer in 1951.

<i>Gymnopilus purpuratus</i> Species of agaric fungus in the family Hymenogastraceae

Gymnopilus purpuratus is a species of agaric fungus in the family Hymenogastraceae. It grows in clusters on dead wood, tree stumps and wood chip mulch. It is widely distributed and has been recorded in Argentina, Australia, Chile, New Zealand, the UK and Germany. It has a broadly convex cap covered in small dry reddish-brown scales, a stout yellow stem beneath reddish brown, wine-red to purple vertical fibres, and a thick rusty orange spore print.

<i>Gymnopilus sapineus</i> Species of fungus

Gymnopilus sapineus, commonly known as the scaly rustgill or common and boring gymnopilus, is a small and widely distributed mushroom which grows in dense clusters on dead conifer wood. It has a rusty orange spore print and a bitter taste. This species does not stain blue and lacks the hallucinogen psilocybin.

<i>Gymnopilus liquiritiae</i> Species of fungus

Gymnopilus liquiritiae is a mushroom in the family Hymenogastraceae. The mushroom is widely distributed and grows in dense clusters on dead conifer wood. It has a rusty orange spore print, a bitter taste, and does not contain the hallucinogen psilocybin. One of its key distinguishing features is the lack of partial veil.

<i>Deconica montana</i> Species of fungus

Deconica montana, commonly known as the mountain moss Psilocybe, is a common species of mushroom that usually grows in mossy and montane regions around the world. The appearance is that of a typical "little brown mushroom" with a small, brown cap and a straight, thin stipe.

Gymnopilus luteus, known as the yellow gymnopilus, is a widely distributed mushroom-forming fungus of the Eastern United States. It contains the hallucinogens psilocybin and psilocin. It is often mistaken for G. speciosissimus and G. subspectabilis.

<i>Gymnopilus viridans</i> Species of fungus

Gymnopilus viridans is a mushroom in the family Hymenogastraceae. It contains the hallucinogens psilocybin and psilocin. It is a rarely documented species, the last known collection being from the US state of Washington in 1912.

<i>Gymnopilus validipes</i> Species of fungus

Gymnopilus validipes is a mushroom in the family Hymenogastraceae. It is widely distributed in North America and Europe.

<i>Gymnopilus luteoviridis</i> Species of fungus

Gymnopilus luteoviridis is a widely distributed mushroom-forming fungus of the Eastern United States that contains the hallucinogens psilocybin and psilocin.

<i>Gymnopilus subtropicus</i> Species of fungus

Gymnopilus subtropicus is a species of agaric fungus in the family Hymenogastraceae.

Gymnopilus subspectabilis, commonly known as the big laughing mushroom, laughing gym, or giant gymnopilus, is a species of agaric fungus in the family Hymenogastraceae which contains the hallucinogenic drug psilocybin.

Gymnopilus subearlei is a species of mushroom-forming fungus in the family Hymenogastraceae.

<i>Psilocybe yungensis</i> Psychedelic mushroom in the family Strophariaceae

Psilocybe yungensis is a species of psychedelic mushroom in the family Hymenogastraceae. In North America, it is found in northeast, central and southeastern Mexico. In South America, it has been recorded from Bolivia, Colombia, and Ecuador. It is also known from the Caribbean island Martinique, and China. The mushroom grows in clusters or groups on rotting wood. The fruit bodies have conical to bell-shaped reddish- to orangish-brown caps that are up to 2.5 cm (1.0 in) in diameter, set atop slender stems 3 to 5 cm long. The mushrooms stain blue when bruised, indicative of the presence of the compound psilocybin. Psilocybe yungensis is used by Mazatec Indians in the Mexican State of Oaxaca for entheogenic purposes.

<i>Gymnopilus maritimus</i> Species of fungus

Gymnopilus maritimus is a fungus species of the family Hymenogastraceae first collected in northern Sardinia, Italy, in 2006. The species produces moderately sized, sturdy mushrooms of a reddish-orange colour. The cap, which can measure up to 70 millimetres (3 in) across, is covered in orange fibrils, and sometimes has small scales. The yellowish stem measures up to 110 mm (4 in) in length by 8 mm (0.3 in) in width, and sometimes shows remnants of the partial veil. The mushrooms have thick gills of a variable colour, ranging from yellow to rust but staining darker, and the yellow flesh has a mild taste. The mushrooms leave a rusty-brown spore print, while the spores themselves measure from 7.5–11.5 micrometres (0.00030–0.00045 in) in length. The species is most similar in appearance to G. arenophilus and G. fulgens, but can be differentiated from both morphologically. Despite the similarities, it is not closely related to either, suggesting convergent evolution. Instead, within the genus Gymnopilus, it is most closely related to the spectabilis–imperialis clade. However, it is not particularly similar to any of its closest relatives.

<i>Aureoboletus betula</i> Species of fungus

Aureoboletus betula is a species of mushroom producing fungus in the family Boletaceae. It is commonly known as the Shaggy Stalked Bolete.

References

  1. 1 2 3 4 5 Davis, R. Michael; Sommer, Robert; Menge, John A. (2012). Field Guide to Mushrooms of Western North America. Berkeley: University of California Press. pp. 245–246. ISBN   978-0-520-95360-4. OCLC   797915861.
  2. Thorn, R. Greg; Malloch, David W.; Saar, Irja; Lamoureux, Yves; Nagasawa, Eiji; Redhead, Scott A.; Margaritescu, Simona; Moncalvo, Jean-Marc (2020-04-24). "New species in the Gymnopilus junonius group (Basidiomycota: Agaricales)". Botany. Canadian Science Publishing. 98 (6): 293–315. doi:10.1139/cjb-2020-0006. ISSN   1916-2790.
  3. "Big Laughing Jim/Scientific Name: Gymnopilus junonius (formerly G. spectabilis)". Missouri Department of Conservation (nature.mdc.mo.gov). Archived from the original on 2021-01-04. Retrieved 2020-09-27.
  4. "Earth Notes: The Laughing Jim Mushroom". www.knau.org. 31 January 2018. Archived from the original on 2021-01-04. Retrieved 2020-09-27.
  5. "Gymnopilus junonius (Fr.) P. D. Orton - Spectacular Rustgill". www.first-nature.com. Archived from the original on 2021-01-04. Retrieved 2020-09-27.
  6. "New species in the Gymnopilus junonius group (Basidiomycota: Agaricales)" (PDF). Retrieved 2022-03-28.
  7. Hatfield, G.M.; Brady, L.R. (1969). "Occurrence of bis-noryangonin in Gymnopilus spectabilis". Journal of Pharmaceutical Sciences. 58 (10): 1298–1299. doi:10.1002/jps.2600581039. PMID   5388695.
  8. Tanaka, Masayasu; Hashimoto, Kimiko; Okunoa, Toshikatsu; Shirahama, Haruhisa (1993). "Neurotoxic oligoisoprenoids of the hallucinogenic mushroom, Gymnopilus spectabilis". Phytochemistry. 34 (3): 661–664. Bibcode:1993PChem..34..661T. doi:10.1016/0031-9422(93)85335-O.