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Panaeolus papilionaceus var. papilionaceus

Panaeolus papilionaceus var. papilionaceus

Scientific classification
Kingdom: Fungi
Phylum: Basidiomycota
Class: Hymenomycetes
Order: Agaricales
Family: Bolbitiaceae
Genus: Panaeolus
Species: P. papilionaceus var. papilionaceus
Binomial name
Panaeolus papilionaceus var. papilionaceus
(Bull. ex Fries) Quélet

Agaricus calosus
Agaricus campanulatus
Agaricus papilionaceus
Galerula campanulata
Panaeolus campanulatus
Panaeolus retirugis
Panaeolus sphinctrinus

Panaeolus papilionaceus var. papilionaceus
mycological characteristics:
gills on hymenium

cap is convex


hymenium is adnexed


stipe is bare


spore print is black


ecology is saprophytic


edibility: unknown

Panaeolus papilionaceus var. papilionaceus, also known as Agaricus calosus, Panaeolus papilionaceus, Panaeolus campanulatus, Panaeolus retirugis, and Panaeolus sphinctrinus is a common and widely distributed little brown mushroom.

This mushroom is the type species for the genus Panaeolus.


This is a little brown mushroom that grows in horse or cow dung and has black spores. The cap is up to 5 cm across, grayish brown, not hygrophanous, conic to campanulate in age. The cap margin is adorned with remnants of the partial veil. The stem is 10 cm by 2.5 mm, fibrous and pruinose. The gills are adnexed and close, with one or two tiers of intermediate gills.

Some collections are mildly psychoactive, containing psilocybin.

This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Panaeolus_papilionaceus_var._papilionaceus". A list of authors is available in Wikipedia.
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