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A Comprehensive Guide to Psilocybe Baeocystis


Behold the Psilocybe baeocystis, an intriguing mushroom that contains the compounds psilocybin, psilocin, and baeocystin. Also known as Bottle caps, Knobby tops, Blue bells, or Olive caps, it thrives in the hidden corners of coniferous forests.

In this article, we will explore the captivating characteristics of this marvelous fungus strain from the family Hymenogastraceae. By the end, you’ll have a deeper understanding of its description, distribution, habitat, and similar species.

Source: Wikipedia

The structure of Psilocybe baeocystis 

These tiny beauties have a very distinctive appearance. Here’s how to recognize them:


  • Recognizable for their convex shape and smooth texture 0.6–2.2 in wide
  • Dark olive brown to buff brown color, occasionally steel blue
  • Turns white when dry


  • Thin, closely spaced with a grayish to cinnamon brown color


  • The stipe, or stem, is sturdy and slender, 2.0–2.8 inches long
  • Typically featuring a whitish coloration


  • Initially, a veil covers the gills of the mushroom, protecting the spore-bearing surface
  • As the mushroom matures, the veil may leave remnants on the stem or break apart entirely


  • When the flesh is bruised or injured, it displays a bluish or blue-green stain


  • Dark purplish to brown
  • Oblong in face view or asymmetric ellipsoid (mango form)

Spore print

  • Dark purplish-brown, which is characteristic of this species



Source: Wikipedia

Distribution and habitat

This extraordinary species can be found gracing the landscapes of the Pacific Northwest, but it doesn’t stop there.

It spreads across North America, particularly along the West Coast. Journey to the states of Oregon, Washington, and California. Even the forests of British Columbia in Canada bear witness to its presence.

It seeks out spaces with towering coniferous forests, scattered wood chips, peat moss, and decaying conifer mulch, forming its mycorrhizal networks. Sometimes, it even emerges from the very earth itself. Enjoying high humidity and moderate temperatures, Psilocybe baeocystis thrives in the rainy seasons and early fall.

Source: Vancouver Mycological Society

Similar species 

These beauties have been known to have some lookalikes coming from the Psilocybe genus, but if you examine them further, you will easily see the difference.

Psilocybe semilanceata Also known as the Liberty Cap, this species shares similarities with Psilocybe baeocystis. However, Psilocybe semilanceata has a more conical cap shape and tends to grow in different habitats. 
Psilocybe cyanescens

Another close relative, Psilocybe cyanescens, features a caramel-brown coloration. It often thrives in wood chips and mulched areas. 

Psilocybe aztecorum

Also likes to hang out on decomposing woody debris and is found in mountainous areas. The caps have different colors, mostly dark chestnut brown to straw yellow. 

Psilocybe quebecensis  The resemblance here is purely microscopic, as the mushroom itself is quite smaller. If you enjoy digging, you can really dig deep and read more about Psilocybin mushrooms.

Research spores with us

Embark on a journey into the enchanting realm of fungi. Welcome to Fungushead, your gateway to an extraordinary collection of Psilocybe cubensis mushroom spores such as: Star Gazer spore syringe, Malabar spore syringe, Golden Teacher spore syringe, and B+ spore syringe.

Explore the scientific potential within our spore syringes:

Advanced Genetic Selection We meticulously source each strain from genetically isolated specimens to provide a pure genetic lineage for research and study purposes.
High-Quality Preparation Each spore syringe is prepared with deionized water to maintain the integrity of the spores and prevent contamination, ensuring that they are suitable for microscopy and educational use.
Tested for Viability Our spores are subjected to strict viability assessments, certifying that they meet quality standards for academic and hobbyist microscopic research.
Clearly Identified Specimens For ease of research and cataloging, each syringe is clearly labeled with the strain’s scientific name and includes a visual reference.

Join us at Fungushead for a journey into the scientific study of mushroom spores. Delve into the fascinating world of mycology and advance your knowledge with our collection for microscopy and educational purposes. Begin your exploration today!

All of the content and images on our site are for informational reference only. The cultivation of psilocybin mushrooms is federally illegal in the United States. We do not promote the cultivation of psilocybin “magic” mushrooms under any circumstances. Do not contact us asking for advice related to this subject. Any products found on this site are for microscopy and taxonomy purposes only. None of the psilocybin mushroom spores we offer are for consumption or cultivation. We do not sell any products containing psilocybin.


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