Among the most well-known and beloved strains for microscopy, the B+ stands tall as a symbol of reliability and versatility. Available from OnlySpores, B+ mushroom spores are renowned for their uniform structure, rich pigmentation, and ease of observation — making them a favourite for both beginners and advanced researchers.
Background and Origin
The exact origins of the B+ strain are somewhat mysterious, though it’s widely believed to have been first circulated by an American mycologist in the 1990s. Its popularity quickly spread through the global mycology community due to its forgiving nature and strong genetic stability.
Researchers appreciate B+ spores for their consistent quality and well-balanced morphology. As one of the most commonly studied Psilocybe cubensis strains, it continues to serve as a reference point for identifying spore traits across multiple varieties.
Microscopic Features
Under the microscope, B+ spores display deep purplish-brown tones with smooth, ellipsoid shapes that are beautifully defined. Their uniformity allows for easy comparison between samples, and their density makes them ideal for slide photography or group demonstration.
Typical characteristics include:
- Colour: Deep purple-brown
- Shape: Ellipsoid, symmetrical, smooth-walled
- Size: 12–13 µm × 8–9 µm
- Density: Medium to high
These predictable traits make B+ one of the best strains for anyone starting their microscopy journey, while still offering plenty of complexity for experienced researchers to appreciate.
Research Relevance
B+ is highly regarded for its consistent spore structure and pigment strength. Researchers often use this strain when testing magnification methods, spore staining techniques, or comparative analysis between environmental strains.
Its strong cell walls and dense pigmentation make it easy to capture clear microscopic imagery, even at higher magnifications. In educational settings, B+ is frequently used as a control strain for morphology studies due to its stability and dependability.
Handling and Storage
To preserve your B+ sample in peak condition:
- Keep syringes or prints in a cool, dark location (ideally refrigerated).
- Avoid freezing or exposure to direct sunlight.
- Use sterile tools and clean slides for examination.
When stored properly, B+ spores remain stable and visually vibrant for many months, retaining clarity for repeat observation.
FAQs
Why are B+ spores so popular for microscopy?
Their reliability and pigmentation make them an ideal reference strain for both new and experienced microscopists.
Can I cultivate B+ spores in the UK?
No. It is illegal to germinate or cultivate psilocybin-containing mushrooms in the United Kingdom. These spores are sold strictly for microscopy and taxonomic research only.
What’s the difference between B+ and other cubensis strains?
B+ tends to produce darker, denser spore prints with slightly thicker cell walls, making them a pleasure to observe under magnification.
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.
Experience one of the world’s most trusted microscopy strains — explore B+ mushroom spores and other premium Psilocybe cubensis varieties available from OnlySpores today.
