Summary ²

Panaeolus olivaceus is a widely distributed, seldom identified, little brown mushroom that contains the hallucinogen psilocybin; it is often mistaken for Panaeolina foenisecii and is distinguished by its black spore print and darker gill coloration when mature alongside a slightly thicker stem. It is even more easily mistaken for Panaeolus cinctulus or Panaeolus fimicola and can be distinguished from them both by its slightly roughened spores. It is also easily

Sources and Credits

1. (c) Christian Schwarz, some rights reserved (CC BY-NC), uploaded by Christian Schwarz
2. (c) Wikipedia, some rights reserved (CC BY-SA), https://en.wikipedia.org/wiki/Panaeolus_olivaceus

More Info

• iNat taxon page
• Biodiversity Heritage Library
• BOLD Systems BIN search
• CalPhotos
• Global Biodiversity Information Facility (GBIF)
• Mushroom Observer
• MykoWeb
• NatureServe Explorer 2.0
• NBN Atlas
• SEINet Symbiota portals
• USDA PLANTS database

iNat Map