Blue Roundhead

Poisonous Poisonous
Autumn Autumn
Winter Winter

Not a dangerously poisonous mushroom but can cause gastric upsets and hallucinations.

Mushroom Type
Common Names Blue Roundhead
Scientific Name Stropharia caerulea
Season Start Aug
Season End Dec
Average Mushroom height (CM) 9
Average Cap width (CM) 8
Please note that each and every mushroom you come across may vary in appearance to these photos.

Cap

Convex opening to flattened cone. Green/blue when young turning pale tan/green.

Gills

White turning grey/brown. Not crowded.

Stem

White turning pale blue. Covered in scales.

Skirt

Has a long lasting white ring, the top surface of which becomes coloured with the brown spores.

Flesh

White/pale blue.

Habitat

Mixed woodland, heath and grassland.

Possible Confusion

The only similar looking mushroom is the Verdigris Agaric, Stropharia aeruginosa, which is rarer and has white edged gills.

Spore Print

Purple/brown. Ellipsoid. The spores should be scrapped into a small pile to get an accurate spore colour.

Frequency

Fairly common.

Other Facts

This mushroom contains psilocybin and psilobin, powerful halluncinogens, but this mushroom will also cause gastric upsets so is not a safe mushroom for consumption.

COMMENTS

5 comments for Blue Roundhead

  1. Carol Barac says:

    I have found these in my garden, should I report them?

  2. Yage says:

    For trespassing in their natural habitat?

  3. Chris says:

    Hahaha, you should pick them and make spore prints. Perhaps you could do something else with them if you so chose….

    But thats a hilarious comment haha, call the authorities some mushrooms are growing hahahahahaha so funny 🤣

  4. My size Baby cakes says:

    Please could you Send them my way please it would be much appreciate for mycology purposes of course x kind regards T

    1. Sam says:

      Hey can we make contact

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