B+ Spore Print

B+ — One of the Most Recognisable Psilocybe cubensis Classics

B+ is one of the best-known Psilocybe cubensis varieties in modern spore-collecting culture. Renowned for its substantial fruiting bodies, attractive colouring and reputation for adaptability, it has remained in circulation for decades. Its familiar appearance and long history make B+ a popular reference point for collectors interested in comparing established cubensis lineages.

The Story Behind B+

B+ emerged in the late 1990s and became associated with a Florida-based figure known as Mr. G, who distributed the variety through Foggy Mountain Farms. One of the more unusual claims surrounding B+ was the suggestion that it represented a cross between Psilocybe cubensis and Psilocybe azurescens. This proposed interspecies hybrid has never been scientifically established, so the claim remains part of the strain’s history rather than a confirmed genetic fact.

Regardless of the origin story, B+ quickly developed a strong following. Its consistent appearance, substantial fruit bodies and adaptability helped it spread through early online mycology communities and spore suppliers. It has since become one of the most familiar names in the P. cubensis collector community.

Recognisable B+ Morphology

B+ has a classic appearance that makes it relatively easy to recognise:

• Cap: Broad and rounded, generally ranging from warm caramel to golden-brown, with lighter colouring towards the margins. Young caps are convex before becoming flatter with maturity.
• Stem: Pale white to off-white, relatively thick and sturdy, often giving the fruit body a substantial appearance.
• Veil: A pronounced veil can leave a noticeable skirt-like remnant around the upper stem.
• Spore print: Dark purple-brown, characteristic of Psilocybe cubensis.
• Overall appearance: Large, balanced fruit bodies with warm colouring and a traditional cubensis profile.

A Long-Standing Reference Variety

Few cubensis names have achieved the same level of recognition as B+. Its popularity comes partly from its long history and partly from its familiar morphology. Collectors often use established varieties such as B+ as reference points when examining newer, unusual or selectively bred cubensis lines.

Another reason for its enduring reputation is its reported adaptability across different environments. However, individual characteristics can vary between specimens, and environmental conditions can have a significant influence on morphology.

Interesting for Microscopy and Collection Work

B+ is an appealing addition to a Psilocybe cubensis spore library for anyone interested in comparative microscopy. Its characteristic caramel-golden colouring, substantial structure and dark spore pigmentation provide several readily observable features for comparison with other varieties.

As with all multi-spore material, individual specimens may display natural variation. A single print should therefore be viewed as a representation of the lineage rather than a guarantee that every future specimen will have exactly the same appearance.

How to Use a Spore Print

If you are unfamiliar with spore prints, our dedicated guide covers the basics of handling and preparing them for microscopy and long-term collection.

Why Add B+ to Your Collection?

For collectors building a broad Psilocybe cubensis library, B+ offers a classic point of reference. Its long-standing history, distinctive caramel-golden appearance and widespread recognition have secured its place among the most familiar cubensis varieties.

Whether you are interested in the history of modern mushroom culture, comparing different cubensis morphologies or simply looking to add a recognised classic to your collection, B+ remains an enduring and visually distinctive choice.