McKennaii.

What's known

Here's what's meant to be true and not.

What we actually know

• It is a plain Psilocybe cubensis, a named collector's strain, not a separate species and not a documented hybrid of anything.
• As far as anyone can tell, it first appeared in Dutch smartshops around 2000, the year Terence McKenna died, and it became especially popular across Europe.
• Terence McKenna himself had no hand in selecting or naming it. The name is a posthumous tribute, nothing more.
• Its visual signature is a caramel to deep-brown cap that frequently turns irregular, wavy or contorted as it matures, on a thick, often-curved stem.
• It drops a heavy, dependable spore print in the usual dark purple-brown to near-black, which is why it is an easy and rewarding strain to study.

What the community says

• The romantic story is that spore prints found among McKenna's belongings after his death in April 2000 were used to start the strain. There is no evidence for this, and it reads as folklore.
• The more sober telling is that an unnamed Dutch mycologist simply selected a strong cubensis and named it after McKenna as a tribute. Even this is unconfirmed, with no creator and no date on record.
• A few vendors have rebranded it as a Penis Envy hybrid or a Golden Teacher cross. No such lineage is documented, and the careful sources do not repeat the claim.
• It carries a long-standing reputation as a heavyweight, often ranked above Golden Teacher or B+. Treat strain potency league tables as marketing. A cube is a cube, and bottle-to-bottle differences owe far more to how a mushroom was grown than to its name.

Where it came from

McKennaii is named for Terence McKenna, the ethnobotanist and psychedelic philosopher who died in April 2000. That much is certain. Almost everything else about where this Psilocybe cubensis strain actually came from is community lore, and the answer is that nobody has produced a name, a date or a place that holds up.

Two stories circulate, and the careful sources are careful to call them stories. The romantic one says spore prints were found among McKenna's belongings after his death and used to bring the strain into circulation. There is no evidence for that, and it has the shape of a myth built backwards from the name. The more plausible one is that a Dutch mycologist simply selected a strong cubensis and named it in tribute, which fits the fact that the strain surfaced in Dutch smartshops around 2000 and spread across Europe from there. McKenna, for his part, had nothing to do with any of it.

The one thing everyone agrees on is the name. Who actually selected the mushroom, and when, is a blank that vendor copy has been quietly filling in for twenty-odd years.

What to expect at the scope

Strip away the backstory and McKennaii is a plain Psilocybe cubensis, a named collector's strain rather than a distinct species. You will occasionally see it sold as a Penis Envy hybrid or a Golden Teacher cross. That lineage is not documented anywhere reliable, and the more sober write-ups do not repeat it. What genuinely sets McKennaii apart is on the outside of the mushroom, not in some secret pedigree: by most accounts its caps love to go wavy, lobed and contorted as they mature, which gives mature specimens a sculptural, slightly off-kilter look that collectors recognise on sight.