Named in honour of the late Terence McKenna, the famed ethnobotanist and psychonaut, the McKennaii strain carries a reputation for curiosity, exploration, and scientific fascination. Available from OnlySpores, McKennaii mushroom spores are as visually captivating as they are consistent — a modern classic in microscopy circles, celebrated for their rich pigmentation and reliable structure.
Background and Origin
The McKennaii strain is believed to have been developed in Europe, designed to pay homage to McKenna’s contributions to ethnomycology and consciousness studies. Although not a wild-discovered strain, it has been refined for consistency and pigmentation, making it a popular subject for microscopy research.
Its origin story aligns perfectly with its purpose: a strain born from curiosity and crafted for study, symbolising exploration and precision.
Microscopic Features
Under magnification, McKennaii spores are exceptionally well-formed, displaying deep pigmentation and uniform symmetry. Their structure and density make them ideal for researchers focused on detail and imaging clarity.
Typical characteristics include:
- Colour: Deep purple-brown
- Shape: Ellipsoid, smooth, symmetrical
- Size: Around 12–13 µm × 8 µm
- Density: High — excellent coverage and contrast
Their striking tone and predictability make them one of the most photographed cubensis spores in modern microscopy.
Research Relevance
McKennaii spores are valued for their consistency and well-balanced structure, serving as an excellent control or reference strain in comparative research. Their pigment concentration allows for clear visual differentiation when studying spore wall layers and colour distribution under various lighting conditions.
For educators, McKennaii offers a reliable teaching specimen that demonstrates the morphological perfection Psilocybe cubensis can achieve through selective refinement.
Handling and Storage
To maintain the best sample quality:
- Store spore prints or syringes in a cool, dark place (2–8 °C recommended).
- Avoid light exposure, humidity, or temperature changes.
- Always use sterile slides and tools for microscopy preparation.
When properly stored, McKennaii spores retain their clarity and pigmentation for years of continued study.
FAQs
Why are they called McKennaii spores?
They were named in tribute to Terence McKenna, a pioneer in ethnomycology and natural philosophy.
Can I cultivate McKennaii spores in the UK?
No. Cultivation of psilocybin mushroom spores is illegal in the United Kingdom. These are sold strictly for microscopy and taxonomic research purposes only.
Are McKennaii spores beginner-friendly?
Yes — they’re known for their strong pigmentation and structural reliability, making them ideal for both new and experienced microscopists.
Legal Disclaimer
In the United Kingdom, it is illegal to germinate or cultivate psilocybin mushroom spores.
All spores sold by OnlySpores are intended strictly for microscopy and taxonomic research purposes under the microscope only.
We do not encourage or condone any illegal activity.
Celebrate exploration and discovery with McKennaii mushroom spores — a tribute to curiosity and scientific excellence. Available now from OnlySpores, your trusted source for premium-quality microscopy specimens.




