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Laughing Gym, Laughing Jim (Gymnopilus junonius)

Laughing Gym, Laughing Jim

Toxic

Gymnopilus junonius

Also known as: Gymnopilus junonius

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Description

Gymnopilus junonius is a large orange-brown mushroom typically found growing on wood. It contains psychoactive compounds, specifically psilocybin and psilocin. The species is widespread and can be found in various regions, often in clusters on decaying logs or tree stumps. Its toxicity is primarily due to the psychoactive compounds it contains, which can cause altered states of consciousness if ingested.

How to Identify

Cap
Orange-brown, dry surface, may have scales or fibers, convex to flattened shape, often with a central bump (umbo).
Gills
Close, adnate to subdecurrent, orange-brown, may stain darker with age.
Stem
Orange-brown, dry, fibrous, may have a fragile ring.
Flesh
Orange-brown, may stain darker when cut.
Fruiting body
Large, orange-brown mushroom growing in clusters on wood.
Habitat
Decaying logs and tree stumps in wooded areas.

Key Facts

  • Cap surfaces: Dry, may have scales or fibers
  • Growth Form: Clustered
  • Spore Print: Rusty brown
  • Body color: Orange-brown
  • Odor: Mild to pungent
  • Flesh bruises: May stain darker
  • Height: 5-20 cm
  • Cap Diameter: 5-20 cm
  • Nutrient gathering: Saprophytic

Toxic

Severe Toxicity

Contains psilocybin and psilocin, which are psychoactive compounds.

Toxin Type: Psilocybin, PsilocinReaction Type: Hallucinogenic

Quick Check

  • Odor: Mild to pungent
  • Fruiting: Grows in clusters on wood
  • Substrate: Decaying wood

Where to Find

Wood

Decaying logs and tree stumps

Group Habitat

Found in clusters

Geographic Location

Prefers temperate regions

Finding Tips

Cap Appearance

Look for orange-brown mushrooms with a dry cap surface.

Taste Test

Check for a bitter taste if you are confident in your identification skills.

Habitat

Search on decaying wood in wooded areas.

Similar Species

Yellow Gymnopilus

mushroom

Also known as: Gymnopilus luteus

Big Laughing Gym

mushroom

Also known as: Gymnopilus spectabilis

Scientific Classification

Phylum
Basidiomycota
Class
Agaricomycetes
Order
Agaricales
Family
Hymenogastraceae
Genus
Gymnopilus

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