Fly Agaric

Meaning of the Name

Amanita
Possibly from the Greek ‘amanitai’, ‘a fungus with no detail’ or, more possibly, from Amanon a mountain in Cilicia, now part of Turkey.
muscaria
From the Latin ‘musca’, ‘fly’ said to be because the mature cap turns upward forming a bowl which, filled with milk, was used as a flytrap.

Common Names and Synonyms

fly agaric, fly amanita, fly mushroom

How Poisonous, How Harmful?

The colourful appearance of the cap makes fly agaric a favourite in children's stories, playrooms and nurseries.

These unusually coloured fungi contain ibotenic acid and muscimol which are strongly psychoactive and can cause very rapid heartbeat and a drying in the mouth. Large amounts can produce fatal convulsions.
In particular, the active components affect the part of the brain dealing with fear. Use of the mushroom to get 'high' can lead users to place themselves in danger because of their perceived invincibility.

Watch a Video about Amanita muscaria, fly agaric

Incidents

There have been a number of specific incidents of Amanita poisoning, often leading to death.

Amanita muscaria

Folklore and Facts

An unusual feature of ibotenic acid is that a large proportion of any ingested is excreted in the urine. The urine of someone who has eaten fly agaric mushrooms becomes psychoactive itself within about an hour of ingestion.
For the Koryak people of the Kamchatka Peninsula, fly agaric was the only mind altering substance available, and then not in great quantities. They discovered that, if fresh mushrooms were in short supply, a second 'high' could be obtained by drinking urine, not necessarily your own. It was an act of hospitality to offer a visitor a glass of something warm if fresh fungus was not to hand.
In rituals, the order of rank of the tribe was reinforced by the ingestion of fresh mushrooms by the headman followed by progressive drinking of urine down through the social structure. It is not known if the urine retains its effects through repeated 'recycling' in this way but the junior members of the tribe would almost certainly have exhibited similar behaviour to avoid giving offence to someone from a higher level.
It is generally believed that the fearlessness produced by consuming this fungi was used by the Vikings to make some of them the much feared warriors whose unrestrained fighting is still commemorated today in the word 'berserk'.
Fly agaric is said to be what enables reindeer to fly on Christmas Eve. The BBC's 'Weird Nature' series had a piece about this and you can see this on the BBC's official YouTube channel. It would be nice to believe that Father Christmas wears red and white because of the colour of the mushroom. Sadly, Santa's outfit has much less romantic origins; in the 1930s an advertising executive for Coca Cola chose red to match the product colour leading to an end to Santa's depiction in others colours in addition to red, notably green.
Concern has been expressed recently that, following the classification of Psilocybe semilanceata, magic mushrooms, as Class A under the Misuse of Drugs Act, more people are turning to Amanita muscaria for recreational purposes and suffering as a result of its greater toxicity compared to the controlled fungi.
Because of its psychoactive properties, but more especially as an example of the lengths the human race will go to to get high, Amanita muscaria features in the Phantastica section of The Poison Garden website.