Morphology and Mutations

Cap (Pileus): Cap bell-shaped to convex, dark caramel to pale golden, often with a pronounced central umbo.

Stipe (Stem): Elongated, thick, and fleshy stipe, whitish in color, which develops an intense bluish reaction (psilocin oxidation) upon mechanical damage.

Spores: Profuse sporulation, dark purple to blackish spore print.

Genetic Traits: Thermal robustness, Resistance to fungal competitors, Large basidiocarp size

Cultivation Characteristics

Special Requirements: Highly adaptable ecologically. It tolerates thermal fluctuations (15°C to 30°C) exceptionally well, fruiting successfully on a wide range of grain-based and coir substrates, without requiring specialized casing layers.

Effects and Psychopharmacology

• Mood enhancement
• Augmented tactile perception
• Warm colors

History and Description

The B+ strain is one of the most prolific and documented domesticated varieties within the Psilocybe cubensis complex. Its original genetic lineage is uncertain; historically, the myth circulated that it was an interspecific hybrid with P. azurescens, a claim categorically refuted by modern genetic analyses that place it as a robust phenotype purely of P. cubensis. Its preeminence in commercial and amateur mycology derives from its vigorous mycelial growth, its exceptionally broad phenotypic fenestration to tolerate suboptimal humidity and temperature conditions, and its ability to produce massive fruiting bodies in successive flushes.

The B+ variety has an extensive history in modern mycology, being appreciated for its unique genetic profile and its contribution to fungal biodiversity studied in laboratories worldwide.