| Amanita muscaria | |
|---|---|
| A. muscaria showing various growth stages |
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| Scientific classification | |
| Kingdom: | Fungi |
| Phylum: | Basidiomycota |
| Class: | Agaricomycetes |
| Order: | Agaricales |
| Family: | Amanitaceae |
| Genus: | Amanita |
| Species: | A. muscaria |
| Binomial name | |
| Amanita muscaria (L.:Fr.) Lam. |
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| Amanita muscaria | |
|---|---|
| Mycological characteristics | |
| gills on hymenium | |
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cap is flat or convex |
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| hymenium is free | |
| stipe has a ring and volva | |
| spore print is white | |
| ecology is mycorrhizal | |
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edibility: poisonous or psychoactive |
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Amanita muscaria, commonly known as the fly agaric ( /ˈæɡərɪk/) or fly amanita ( /ˌæməˈnaɪtə/), is a poisonous and psychoactive basidiomycete fungus, one of many in the genus Amanita. Native throughout the temperate and boreal regions of the Northern Hemisphere, Amanita muscaria has been unintentionally introduced to many countries in the southern hemisphere, generally as a symbiont with pine plantations, and is now a true cosmopolitan species. It associates with various deciduous and coniferous trees. The quintessential toadstool, it is a large white-gilled, white-spotted, usually deep red mushroom, one of the most recognizable and widely encountered in popular culture. Several subspecies, with differing cap colour, have been recognised to date, including the brown regalis (considered a separate species), the yellow-orange flavivolvata, guessowii, and formosa, and the pinkish persicina. Genetic studies published in 2006 and 2008 show several sharply delineated clades which may represent separate species.
Although it is generally considered poisonous, deaths from its consumption are extremely rare, and it is eaten as a food in parts of Europe, Asia, and North America after parboiling. Amanita muscaria is now primarily famed for its hallucinogenic properties, with its main psychoactive constituent being the compound muscimol. It was used as an intoxicant and entheogen by the peoples of Siberia and has a religious significance in these cultures. There has been much speculation on traditional use of this mushroom as an intoxicant in places other than Siberia; however, such traditions are far less well documented. The American banker and amateur ethnomycologist R. Gordon Wasson proposed that the fly agaric was in fact the soma of the ancient Rig Veda texts of India; since its introduction in 1968 this theory has gained both followers and detractors in anthropological literature.[1]
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The name of the mushroom in many European languages is thought to be derived from its use as an insecticide, when sprinkled in milk. This practice has been recorded from Germanic- and Slavic-speaking parts of Europe, as well as the Vosges region and pockets elsewhere in France, and Romania.[2] Albertus Magnus was the first to record it in his work De vegetabilibus sometime before 1256,[3] commenting:
vocatur fungus muscarum, eo quod in lacte pulverizatus interficit muscas ("It is called the mushroom of flies, because crushed in milk it kills flies")[4]
The 16th century Flemish botanist Carolus Clusius traced the practice of sprinkling it into milk to Frankfurt in Germany,[5] while Carl Linnaeus, the "father of taxonomy", reported it from Småland in southern Sweden where he had lived as a child.[6] He officially described it in Volume Two of his Species Plantarum in 1753, giving it the name Agaricus muscarius,[7] the specific epithet deriving from Latin musca meaning "fly".[8] It gained its current name in 1783, when placed in the genus Amanita by Jean-Baptiste Lamarck and sanctioned by Elias Magnus Fries.
The starting date had been formerly set as January 1, 1821, the date of the works of the "father of mycology", Swedish naturalist Elias Magnus Fries, and under these conditions, the full name was Amanita muscaria (L.:Fr.) Hook.. However, the 1987 edition of the International Code of Botanical Nomenclature changed the rules regarding the starting date and primary work for names of fungi, and now names can be considered valid as far back as May 1, 1753, the date of publication of Linnaeus's seminal work.[9] Hence, Linnaeus and Lamarck became the namers of the Amanita muscaria (L.) Lam.
English mycologist John Ramsbottom reported that Amanita muscaria was used for getting rid of bugs in England and Sweden, and bug agaric was an old alternate name.[4] French mycologist Pierre Bulliard reported having tried without success to replicate its fly-killing properties in his work Histoire des plantes vénéneuses et suspectes de la France, and proposed a new binomial name Agaricus pseudo-aurantiacus because of this.[10] One compound isolated from the fungus is 1,3-diolein, which is in fact an insect attractor.[11]
An alternative derivation proposes that the term fly- refers not to insects as such but rather the delirium resulting from consumption of the fungus. This is based on the medieval belief that flies could enter a person's head and cause mental illness.[12] Several regional names appear to be linked with this connotation, meaning either "mad-" or "fool's" Amanita caesarea. Hence there is oriol foll "mad oriol" in Catalan, mujolo folo from Toulouse, concourlo fouolo from the Aveyron department in Southern France, ovolo matto from Trentino in Italy. A local dialect name in Fribourg in Switzerland is tsapi de diablhou, which translates as "Devil's hat".[13]
Amanita muscaria is the type species of the genus Amanita. By extension, it is also the type species of Amanita subgenus Amanita, as well as section Amanita within this subgenus. Amanita subgenus Amanita includes all Amanita with inamyloid spores. Amanita section Amanita includes those species with patchy universal veil remnants, including a volva that is reduced to a series of concentric rings and the veil remnants on the cap being a series of patches or warts. Most species in this group also have a bulbous base.[14][15] Amanita section Amanita consists of A. muscaria and its close relatives, including A. pantherina (the panther cap), A. gemmata, A. farinosa, and A. xanthocephala.[16] Modern fungal taxonomists have classified Amanita muscaria and its allies this way based on gross morphology and spore inamyloidy. Two recent molecular phylogenetic studies have confirmed this classification as natural.[17][18]
Amanita muscaria varies considerably in its morphology and many authorities recognize a number of subspecies or varieties within the species. In The Agaricales in Modern Taxonomy, German mycologist Rolf Singer listed three subspecies, though without description: A. muscaria ssp. muscaria, A. muscaria ssp. americana, and A. muscaria ssp. flavivolvata.[14]
Contemporary authorities recognize up to seven varieties:
A 2006 molecular phylogenetic study of different regional populations of A. muscaria by mycologist József Geml and colleagues found three distinct clades within this species representing, roughly, Eurasian, Eurasian "subalpine", and North American populations. Specimens belonging to all three clades have been found in Alaska; this has led to the hypothesis that this was the center of diversification of this species. The study also looked at four named varieties of this species: var. alba, var. flavivolvata, var. formosa (including var. guessowii), and var. regalis from both areas. All four varieties were found within both the Eurasian and North American clades, evidence that these morphological forms are simply polymorphisms found throughout the species rather than distinct subspecies or varieties.[26] Further molecular study by Geml and colleagues published in 2008 show these three genetic groups, plus a fourth associated with oak–hickory–pine forest in the southeastern United States, and two more on Santa Cruz Island in California, are delineated from each other enough genetically to be considered separate species; thus A. muscaria as it stands currently is a species complex.[27] The complex also includes at least three other closely related taxa currently regarded as species:[19] A. breckonii is a buff-capped mushroom associated with conifers from the Pacific Northwest,[28] and the brown-capped A. gioiosa and A. heterochroma from the mediterranean and Sardinia alone respectively. Both these last two are found with Eucalyptus and Cistus trees and it is unclear whether they are native or have been introduced from Australia.[29][30]
A large conspicuous mushroom, Amanita muscaria is generally common and numerous where it grows, and is often found in groups with basidiocarps in all stages of development. Fly agaric fruiting bodies emerge from the soil looking like a white egg, covered in the white warty material of the universal veil. Dissecting the mushroom at this stage will reveal a characteristic yellowish layer of skin under the veil which assists in identification. As the fungus grows, the red color appears through the broken veil and the warts become less prominent; they do not change in size but are reduced relative to the expanding skin area. The cap changes from globose to hemispherical, and finally to plate-like and flat in mature specimens.[31] Fully grown, the bright red cap is usually around 8–20 cm (3–8 in) in diameter, although larger specimens have been found. The red color may fade after rain and in older mushrooms. After emerging from the ground, the cap is covered with numerous small white to yellow pyramid-shaped warts. These are remnants of the universal veil, a membrane that encloses the entire mushroom when it is still very young. The free gills are white, as is the spore print. The oval spores measure 9–13 by 6.5–9 μm, and are non-amyloid, that is, they do not turn blue with the application of iodine.[32] The stipe is white, 5–20 cm high (2–8 in) by 1–2 cm (0.4–0.8 in) wide, and has the slightly brittle, fibrous texture typical of many large mushrooms. At the base is a bulb that bears universal veil remnants in the form of two to four distinct rings or ruffs. Between the basal universal veil remnants and gills are remnants of the partial veil (which covers the gills during development) in the form of a white ring. It can be quite wide and flaccid with age. There is generally no associated smell other than a mild earthiness.[33][34]
Although very distinctive in appearance, the fly agaric has been mistaken for other yellow to red species in the Americas, including Armillaria cf. mellea and the edible Amanita basii—a Mexican species similar to A. caesarea of Europe. Poison control centers in the U.S. and Canada are aware that amarill is a common name for A. caesarea-like species in Mexico, not just the Spanish for 'yellow'.[22] Amanita caesarea can be distinguished as it has an entirely orange to red cap, lacking the numerous white warty spots of the fly agaric. Furthermore the stem, gills and ring are bright yellow, not white.[35] Finally the volva is a distinct white bag, not broken into scales.[36] In Australia, the introduced fly agaric may be confused with the native vermilion grisette (Amanita xanthocephala), which grows in association with eucalypts. The latter species generally lacks the white warts of A. muscaria and bears no ring.[37]
A. muscaria is a cosmopolitan mushroom, native to conifer and deciduous woodlands throughout the temperate and boreal regions of the Northern Hemisphere,[26] including high elevations of warmer latitudes in regions like the Hindu Kush, the Mediterranean and Central America. A recent molecular study proposes an ancestral origin in the Siberian–Beringian region in the Tertiary period before radiating outwards across Asia, Europe and North America.[26] Though generally encountered in autumn, the season can vary in different climates: fruiting occurs in summer and autumn across most of North America, but later in autumn and early winter on the Pacific coast. It is often found in similar locations to Boletus edulis, and may appear in fairy rings.[38] Conveyed with pine seedlings, it has been widely transported into the southern hemisphere, including Australia,[39] New Zealand,[40] South Africa[41] and South America,where it can be found in the southern brazilian state of Paraná.[26]
Ectomycorrhizal, Amanita muscaria forms symbiotic relationships with a wide variety of trees, including pine, spruce, fir, birch, and cedar. Commonly seen under introduced trees,[42] A. muscaria is the fungal equivalent of a weed in New Zealand, Tasmania and Victoria, forming new associations with southern beech (Nothofagus).[43] It is also invading native rainforest in Australia, where it may be displacing native species.[42] Furthermore, it appears to be spreading northwards, with recent reports placing it near Port Macquarie on the New South Wales north coast.[44] Although it has not spread to eucalypts in Australia, it has been recorded associating with them in Portugal.[45]
Amanita muscaria poisoning typically occurs in either young children or people ingesting it for a hallucinogenic experience.[12][46][47] Occasionally, immature button forms have been mistaken for edible puffballs.[48] Additionally, the white spots may be washed away during heavy rain and it can then appear similar to the edible A. caesarea.[49]
Amanita muscaria contains a number of biologically active agents, at least two of which, muscimol and ibotenic acid, are known to be psychoactive. A toxic dose in adults is approximately 6 mg muscimol or 30 to 60 mg ibotenic acid;[50][51] this is typically about the amount found in one cap of Amanita muscaria.[52] However, the amount and ratio of chemical compounds per mushroom varies widely from region to region and season to season, which further confuses the issue. Spring and summer mushrooms have been reported to contain up to 10 times as much ibotenic acid and muscimol compared to autumn fruitings.[46]
A fatal dose has been calculated at approximately 15 caps.[53] Deaths from A. muscaria have been reported in historical journal articles and newspaper reports;[54][55][56] however, with modern medical treatment a fatal outcome would be extremely rare.[57] Many older books mistakenly list it as deadly, giving the impression that it is far more toxic than it really is.[58] The North American Mycological Association has stated there are no reliably documented fatalities in the past 100 years.[59] The vast majority (90% or more) of mushroom poisoning deaths are from having eaten either the greenish to yellowish death cap (A. phalloides) or one of the several white Amanita species known as destroying angels.[60]
The active constituents of this species are water soluble, and boiling and then discarding the cooking water will at least partly detoxify A. muscaria.[61] However, drying may increase potency as the process facilitates the conversion of ibotenic acid to the more potent muscimol.[62] According to some sources, once detoxified, the mushroom becomes edible.[63]
Muscarine, discovered in 1869,[64] was long thought to be the active hallucinogenic agent in A. muscaria. Muscarine binds with muscarinic acetylcholine receptors leading to the excitation of neurons bearing these receptors. The levels in Amanita muscaria, however, are minute when compared with other poisonous fungi,[65] such as Inocybe erubescens or small white Clitocybe species C. dealbata and C. rivulosa, and are too insignificant to play a role in the symptoms of poisoning.[66]
The major toxins involved in poisoning are muscimol (3-hydroxy-5-aminomethyl-1-isoxazole, an unsaturated cyclic hydroxamic acid) and ibotenic acid. Muscimol is the product of the decarboxylation (usually by drying) of ibotenic acid. Muscimol and ibotenic acid were discovered in the mid-20th century.[67][68] Researchers in England,[69] Japan,[70] and Switzerland[68] showed that the effects produced were due mainly to ibotenic acid and muscimol, not muscarine.[11][67] They are not distributed uniformly in the mushroom. Most are detected in the cap of the fruit, rather than in the base, with the smallest amount in the stalk. (Lampe, 1978; Tsunoda et al., 1993) A substantial fraction of ingested ibotenic acid is excreted in the urine unmetabolized quite rapidly, between 20 and 90 minutes after ingestion. Virtually no muscimol is excreted when pure ibotenic acid is eaten but muscimol is detectable in the urine after eating A. muscaria, which contains both ibotenic acid and muscimol.[51]
Ibotenic acid and muscimol are structurally related to each other and to two major neurotransmitters of the central nervous system: glutamic acid and GABA respectively. Ibotenic acid and muscimol act like these neurotransmitters, muscimol being a potent GABAA agonist, while ibotenic acid is an agonist of NMDA glutamate receptors and certain metabotropic glutamate receptors[71] which are involved in the control of neuronal activity. It is these interactions which are thought to cause the psychoactive effects found in intoxication. Muscimol is the agent responsible for the majority of the psychoactivity.[12][52]
Muscazone is another compound more recently isolated from European specimens of the fly agaric. It is a product of the breakdown of ibotenic acid by ultra-violet radiation.[72] Muscazone is of minor pharmacological activity compared with the other agents.[12] Amanita muscaria and related species are known as effective bioaccumulators of vanadium; some species concentrate vanadium to levels of up to 400 times those typically found in plants.[73] Vanadium is present in fruit-bodies as an organometallic compound called amavadine.[73] However, the biological importance of the accumulation process is unknown.[74]
Fly agarics are known for the unpredictability of their effects. Depending on habitat and the amount ingested per body weight, effects can range from nausea and twitching to drowsiness, cholinergic crisis-like effects (low blood pressure, sweating and salivation), auditory and visual distortions, mood changes, euphoria, relaxation, ataxia, and loss of equilibrium.[46][47][52][55]
In cases of serious poisoning it causes a delirium, similar in effect to anticholinergic poisoning it is characterized by bouts of marked agitation with confusion, hallucinations, and irritability followed by periods of central nervous system depression. Seizures and coma may also occur in severe poisonings.[47][52] Symptoms typically appear after around 30 to 90 minutes and peak within three hours, but certain effects can last for a number of days.[49][51] In the majority of cases recovery is complete within 12 to 24 hours.[61] The effect is highly variable between individuals with similar doses potentially causing quite different reactions.[46][51][75] Some cases of intoxication have exhibited headaches up to ten hours afterwards.[51] Retrograde amnesia and somnolence can result following recovery.[52]
Medical attention should be sought in cases of suspected poisoning. Initial treatment consists of gastric decontamination. If the delay between ingestion and treatment is less than four hours, activated charcoal is given. Gastric lavage can be considered if the patient presents within 1 hour of ingestion.[76] Inducing vomiting with syrup of ipecac is no longer recommended in any poisoning situations.[77]
There is no antidote, and supportive care is the mainstay of further treatment for intoxication. Patients can develop symptoms similar to anticholinergic or cholinergic poisoning; however, the use of atropine or physostigmine as an antidote is not recommended as muscimol and ibotenic acid do not produce a true anticholinergic syndrome nor do they have activity at muscarinic receptors.[78] If a patient is delirious or agitated, this can usually be treated by reassurance and, if necessary, physical restraints. Additionally, benzodiazepine such as diazepam or lorazepam can be used to control combativeness, agitation, muscular overactivity, and seizures.[46] However, small doses of benzodiazepines should be used as they may worsen the respiratory depressant effects of muscimol.[79] Recurrent vomiting is rare but if present may lead to fluid and electrolyte imbalances; intravenous rehydration or electrolyte replacement may be required.[52][80] Serious cases may develop loss of consciousness or coma, and may necessitate intubation and artificial ventilation.[47][81] Hemodialysis can remove the toxins, although this intervention is generally considered unnecessary.[61] With modern medical treatment the prognosis is typically good following supportive treatment.[57][61]
Unlike psilocybin mushrooms, Amanita muscaria is a deliriant (as opposed to a psychedelic; see hallucinogens) and has been rarely consumed recreationally because of its toxicity and sometimes intensely unpleasant effects. However, following the outlawing of psilocybin-containing mushrooms in the United Kingdom, an increased quantity of legal A. muscaria mushrooms began to be sold and consumed.[82] Professor Marija Gimbutas, a renowned Lithuanian historian, reported to R. Gordon Wasson on the use of this mushroom in Lithuania. In remote areas of Lithuania Amanita muscaria has been taken at wedding feasts, in which mushrooms were mixed with vodka. The professor also reported that the Lithuanians used to export quantities of A. Muscaria to the Lapps in the Far North for use in shamanic rituals. The Lithuanian festivities are the only report that Wasson received of ingestion of fly-agaric for recreational use in Eastern Europe.[83]
A. muscaria was widely used as an entheogen by many of the indigenous peoples of Siberia. Its use was known among almost all of the Uralic-speaking peoples of western Siberia and the Paleosiberian-speaking peoples of the Russian Far East. However, there are only isolated reports of A. muscaria use among the Tungusic and Turkic peoples of central Siberia and it is believed that entheogenic use of A. muscaria was largely not a practice of these peoples.[84] In western Siberia, the use of A. muscaria was restricted to shamans, who used it as an alternate method of achieving a trance state. (Normally, Siberian shamans achieve a trance state by prolonged drumming and dancing.) In eastern Siberia, A. muscaria was used by both shamans and laypeople alike, and was used recreationally as well as religiously.[84] In eastern Siberia, the shaman would consume the mushrooms, and others would drink his urine.[85] This urine, still containing psychoactive elements, may actually be more potent than the A. muscaria mushrooms with fewer negative effects, such as sweating and twitching, suggesting that the initial user may act as a screening filter for other components in the mushroom.[86]
The Koryak of eastern Siberia have a story about the fly agaric (wapaq) which enabled Big Raven to carry a whale to its home. In the story, the deity Vahiyinin ("Existence") spat onto earth, and his spittle became the wapaq, and his saliva becomes the warts. After experiencing the power of the wapaq, Raven was so exhilarated that he told it to grow forever on earth so his children, the people, could learn from it.[87] Among the Koryak, one report held the poor would consume the urine of the wealthy, who could afford to buy the mushrooms.[88]
Beyond Siberia, there are only isolated and unconfirmed reports of the entheogenic use of A. muscaria. The Finnish historian T. I. Itkonen mentions that it was once used among the Sami people, sorcerers in Inari would consume fly agarics with seven spots.[89] In 1979, Said Gholam Mochtar and Hartmut Geerken published an article in which they claim to have discovered a tradition of medicinal and recreational use of this mushroom among a Parachi-speaking group in Afghanistan.[90] There are also unconfirmed reports of religious use of A. muscaria among two Subarctic Native American tribes. Ojibwa ethnobotanist Keewaydinoquay Peschel reported its use among her people, where it was known as the miskwedo.[91][92] This information was enthusiastically received by Wasson, although evidence from other sources was lacking.[93] There is also one account of a Euro-American who claims to have been initiated into traditional Tlicho use of Amanita muscaria.[94]
In 1968, R. Gordon Wasson proposed that A. muscaria was the Soma talked about in the Rig Veda of India,[95] which received widespread publicity and popular support at the time.[96] He noted that descriptions of Soma omitted description of roots, stems or seeds, which suggested a mushroom,[97] and used the adjective hári "dazzling" or "flaming" which the author interprets as red.[98] One line described men urinating Soma; this recalled the practice of recycling urine in Siberia. Soma is mentioned as coming "from the mountains", which Wasson interpreted as being brought with the Aryan invaders from the north.[99] However, Indian scholars Santosh Kumar Dash and Sachinanda Padhy noted that both the eating of mushrooms and drinking of urine were proscribed, using as a source the Manusmṛti.[100] In 1971, Vedic scholar John Brough from Cambridge University rejected Wasson's theory; he noted the language was too vague to determine a description of Soma.[101] In his 1976 survey, Hallucinogens and Culture, anthropologist Peter T. Furst evaluated the evidence for and against the identification of the Fly Agaric mushroom as Vedic Soma, concluding cautiously in its favor.[1]
A single source for the notion that Vikings used A. muscaria to produce their berserker rages was first suggested by the Swedish professor Samuel Ödman in 1784.[102] Ödman based his theories on reports about the use of fly agaric among Siberian shamans. The notion has become widespread since the 19th century, but no contemporary sources mention this use or anything similar in their description of berserkers. Today, it is generally considered an urban legend or at best speculation that cannot be proven. Muscimol is generally a mild relaxant, but could create a range of reactions within a range of people.[103] It is possible that it could make a person incredibly angry, as well as make them "very jolly or sad, jump about, dance, sing or give way to great fright".[103]
Biblical scholar John Marco Allegro controversially proposed that the Roman Theology was derived from a sex and psychedelic mushroom cult in his 1970 book The Sacred Mushroom and the Cross,[104] although his theory has found little support by scholars outside the field of ethnomycology. The book was roundly discredited by academics and theologians, including Sir Godfrey Driver, Emeritus Professor of Semitic Philology at Oxford University, and Henry Chadwick, the Dean of Christ Church College, Oxford.[105] Christian author John C. King wrote a detailed rebuttal of Allegro's theory in the 1970 book A Christian View of the Mushroom Myth; he notes neither fly agarics nor their host trees are found in the middle east, and highlights the tenuous nature of the links between biblical and Sumerian names coined by Allegro. He concludes that if the theory was true, the use of the mushroom must have been "the best kept secret in the world" as it was so well concealed for all this time.[106][107]
In Magic Mushrooms in Religion and Alchemy (formerly called Strange Fruit) Clark Heinrich interprets A. muscaria usage by Adam and Eve, Moses, Elijah and Elisha, Isaiah, Ezekiel, Jonah, Jesus and his disciples, and John of Patmos.[108] In the book Apples of Apollo the mushroom is identified in a wide range of mythological tales such as those involving Perseus, Prometheus, Heracles, Jason and the Argonauts, Jesus and the Holy Grail.[109]
The toxins in A. muscaria are water soluble. When sliced thinly, or chopped into thin dice and boiled in plentiful water until thoroughly cooked, it seems to be detoxified.[63] Although its consumption as a food has never been widespread, the consumption of detoxified A. muscaria has been practiced in some localities in Europe (notably by Russian settlers in Siberia) since at least the 19th century, and likely earlier. The German physician and naturalist Georg Heinrich von Langsdorff wrote the earliest published account on how to detoxify this mushroom in 1823. In the late 19th Century, the French physician Félix Archimède Pouchet was a popularizer and advocate of A. muscaria consumption, comparing it to manioc, an important food source in tropical South America that nevertheless must be detoxified before consumption.[63]
Use of this mushroom as a food source also seems to have existed in North America as well. A classic description of this use of A. muscaria by an African-American mushroom seller in Washington, D.C., in the late nineteenth century is described by American botanist Frederick Vernon Coville. In this case, the mushroom, after parboiling, and soaking in vinegar is made into a mushroom sauce for steak.[110] It is also consumed as a food in parts of Japan. The most well-known current use as an edible mushroom is in Nagano Prefecture, Japan. There, it is primarily salted and pickled.[111]
A 2008 paper by food historian William Rubel and mycologist David Arora gives a history of consumption of A. muscaria as a food and describes detoxification methods. They advocate that Amanita muscaria be described in field guides as an edible mushroom, though accompanied by a description on how to detoxify it. The authors state that the widespread descriptions in field guides of this mushroom as poisonous is a reflection of cultural bias, as several other popular edible species, notably morels, are toxic unless properly cooked.[63]
The red-and-white spotted toadstool is a common image in many aspects of popular culture, especially in children's books, film, garden ornaments, greeting cards, and more recently computer games.[32] Garden ornaments, and children's picture books depicting gnomes and fairies, such as the Smurfs, very often show fly agarics used as seats, or homes.[32][115] Fly agarics have been featured in paintings since the Renaissance,[116] albeit in a subtle manner. In the Victorian era they became more visible, even becoming the main topic of some fairy paintings.[117] Two of the most famous uses of the mushroom are in the video game series Super Mario Bros.,[118] and the dancing mushroom sequence in the 1940 Disney film Fantasia.[119]
The journeys of Philip von Strahlenberg to Siberia and his descriptions of the use of the mukhomor there was published in English in 1736. The drinking of urine of those who had imbibed the mushroom was commented on by Anglo-Irish writer Oliver Goldsmith in his widely read 1762 novel Citizen of the World.[120] The mushroom had been identified as the fly agaric by this time.[121] Other authors recorded the distortions of the size of perceived objects while intoxicated by the fungus, including naturalist Mordecai Cubitt Cooke in his books The Seven Sisters of Sleep and A Plain and Easy Account of British Fungi.[122] This observation is thought to have formed the basis of the effects of eating the mushroom in the 1865 popular story Alice's Adventures in Wonderland.[112] A hallucinogenic "scarlet toadstool" from Lappland is also featured as a plot element in Charles Kingsley's 1866 novel Hereward the Wake based on the medieval figure of the same name;[123] fly agaric shamanism is explored more recently in the 2003 novel Thursbitch by Alan Garner.[124]
Fly agarics appear on Christmas cards and New Year cards from around the world as a symbol of good luck.[125] The ethnobotanist Jonathan Ott has suggested that the idea of Santa Claus and tradition of hanging stockings over the fireplace is based centrally upon the fly agaric mushroom itself.[75] With its generally red and white color scheme, he argues that Santa Claus's suit is related to the mushroom. He also draws parallels with flying reindeer: reindeer had been reported to consume the mushroom and prance around in an intoxicated manner afterwards.[126] American ethnopharmacologist Scott Hajicek-Dobberstein, researching possible links between religious myths and the red mushroom, notes, "If Santa Claus had but one eye [like Odin], or if magic urine had been a part of his legend, his connection to the Amanita muscaria would be much easier to believe.".[127]
The connection was reported to a much wider audience with an article in the magazine of The Sunday Times in 1980,[128] and New Scientist in 1986.[129] Historian Ronald Hutton has since disputed the connection;[130] he noted reindeer spirits did not appear in Siberian mythology, shamans did not travel by sleigh, nor did they wear red and white, or climb out of smoke holes in yurt roofs. Finally, American awareness of Siberian shamanism postdated the appearance of much of the folklore around Santa.[131]
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