The Mckennaii strain is a homage to legendary psychonaut and mycologist Terrence Mckenna. Mckenna's popular "stoned ape theory" links psychotropic substances to expedited human evolution.

Mckennaii Cubensis is known for its potency, speed of colonization, and impressive yields. Its caps range between various shades of brown in coloration and are often bell-shaped. Stipes (stems/stalks) are of moderate thickness and often curved. It exhibits moderate sporation that sometimes discolours the cap purplish-black in maturity.

Its effects are very well-reviewed. Intense visual stimulation and hallucination, and immersive journeys through alternate realms of consciousness

The B+ (Be Positive) strain is one of the most commonly cultivated cubensis strains, prized for its resistance to colder temperatures and consistently large yields.

It grows large/extra large fruiting bodies although at a slower rate than most other cubensis. It has a broad caramel to brown coloured pileus (cap) that sometimes inverts at the margin with age. Its stipe is moderate width and moderately curvaceous.

Its effects and potency are well-reviewed. Medium potency with effects including strong spiritual feelings of connectedness, euphoria, and warm grounded energy. It is a great strain for beginners and the experienced.

Transkei Cubensis originated in the pastures of South Africa and is the only Cubensis naturally found on the continent. It is possible this is the mushroom referred to in Terrence Mckenna's "Stoned Ape Theory", the theory that psilocybe mushrooms positively influenced human evolutions.

Its caps are often medium to small in size, triangular or spear-shaped and orangish brown to whitish-yellow in colour. Stipes are often very long and slender, frequently curving. Sporation is typically light.

It is reviewed as average potency and a great experience for beginner users. Its effects are a mix of bodily buzzing and vibration, mental clarity, philosophical ideations, and euphoria.