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Panaeolus castaneifolius

Panaeolus castaneifolius
Scientific classification
Kingdom: Fungi
Phylum: Basidiomycota
Class: Hymenomycetes
Order: Agaricales
Family: Bolbitiaceae
Genus: Panaeolus
Species: P. castaneifolius
Binomial name
Panaeolus castaneifolius
(Murrill) Ola'h
''Panaeolus castaneifolius''
mycological characteristics:
gills on hymenium

cap is campanulate or convex


hymenium is adnexed or adnate


stipe is bare


spore print is black


ecology is saprophytic


edibility: psychoactive

Panaeolus castaneifolius is a rare little brown mushroom which sometimes contains small amounts of the hallucinogen psilocybin.


This is a little brown mushroom that grows in grass and has black spores. The cap is up to 4 cm across, dark gray to buff, campanulate when young and becoming to convex in age, and sometimes striated or wrinkled. The stem is 5 cm by 5 mm thick, hollow, brittle, pruinose and striated. The spores are black and slightly roughened, 13 x 8 micrometres.

This mushroom is often mistaken for Panaeolus foenisecii, and is distinguished by the dark purplish grayish blackish spore deposit and the gill color.

This species is rare; it has been collected in Oregon.

External links

  • Panaeolus castaneifolius image
  • Panaeolus castaneifolius image
  • Key to Panaeolus in the Pacific Northwest
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Panaeolus_castaneifolius". A list of authors is available in Wikipedia.
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