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What is the Devil's Fungus Mushroom?

Published in Fungi Identification 3 mins read

The Devil's Fungus Mushroom, more accurately known as the Devil's Fingers Fungus (Clathrus archeri), is a striking and unusual type of fungus recognized by its unique appearance and distinct, unpleasant odor.

This fascinating fungus is a member of the stinkhorn family (Phallaceae) and is famous for its dramatic emergence from an "egg" and its tentacle-like arms.

Distinctive Features of the Devil's Fingers Fungus

The Devil's Fingers Fungus is truly one-of-a-kind, often startling those who encounter it due to its appearance and smell.

Life Cycle and Appearance

  • Hatching from an Egg: One of its most peculiar traits is its initial development. The fungus hatches from a slimy, gelatinous 'egg' which can be found partially buried in the ground. This "egg" is typically white or off-white and can be mistaken for a puffball mushroom at first glance.
  • Emerging Arms: As it matures, the outer layer of the 'egg' ruptures, and tentacle-like arms start to protrude. These arms are initially fused at the top but gradually unfurl and separate, giving the fungus its characteristic octopus-like or star-shaped appearance.
  • Vibrant Coloration: The arms are a bright red colour, making this fungus incredibly easy to spot against the backdrop of the forest floor. This vivid hue contributes to its "devilish" moniker.
  • Unpleasant Odor: True to its relation to the stinkhorns, the Devil's Fingers Fungus possesses a strong and unpleasant smell. This odor, often described as putrid or like rotting flesh, serves to attract insects that help disperse its spores.

Habitat and Rarity

While visually arresting, the Devil's Fingers Fungus is fairly rare in the UK, where it is typically found in woodlands, often near decaying wood debris. It is thought to have been introduced to Europe from its native Australia and New Zealand, likely via military supplies during World War I.

Key Characteristics at a Glance

Feature Description
Common Name Devil's Fingers Fungus, Octopus Stinkhorn
Scientific Name Clathrus archeri
Family Phallaceae (Stinkhorn family)
Initial Stage Hatches from a slimy, gelatinous 'egg'
Mature Form Tentacle-like arms that unfurl
Color Bright red
Odor Strong and unpleasant (rotting flesh-like)
Rarity Fairly rare in the UK
Origin Native to Australia and New Zealand

Related Fungi

As mentioned, the Devil's Fingers Fungus is related to the stinkhorns. This family of fungi is well-known for producing foul-smelling gleba (spore-bearing slime) to attract insects for spore dispersal. Other common stinkhorn species include the Common Stinkhorn (Phallus impudicus), which also emits a strong odor.

Despite its alarming appearance and smell, the Devil's Fingers Fungus is a fascinating example of fungal diversity, showcasing unique adaptations for survival and reproduction in the natural world.