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Psilocybe cubensis
VZ3 (Venezuela)
A genuinely wild Venezuelan cubensis, collected as a single jungle flush and only a few grow-outs removed from its mountain origin. A landrace line with a real, recent backstory rather than vendor mythology.
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Sold for microscopy, taxonomy and collecting only. Not for cultivation.
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The short version
VZ3 (Venezuela) is a modern landrace-derived Psilocybe cubensis, said to trace back to a single wild flush found in the Venezuelan mountains and brought into circulation by a hobbyist known online as manna. By most accounts it stays close to its wild mother genetics, which is exactly why collectors find it interesting. The documented history is short but specific, and it is a plain cubensis under the microscope.
Straight talk
Fact vs. legend
There is a lot of folklore around this strain. Here is which bits are real, side by side.
What we actually know
- It is a Psilocybe cubensis line said to descend from a wild Venezuelan collection, not a hybrid and not a separate species.
- The accepted origin story credits a hobbyist known online as manna, who reportedly received one of three spore prints taken from a wild flush and grew it out before sharing it onward.
- It is a relatively recent line. There is no decades-deep paper trail behind it the way there is for older classics like B+ or Golden Teacher.
- Being only a few grow-outs removed from a wild collection, it has a reputation for behaving unpredictably, which collectors take as a sign of how close it still sits to its source genetics.
- As a plain cubensis it drops a dark spore print and shows the usual textbook spores on a slide. A cube is a cube under the lens.
What the community says
- The story goes that VZ3 began with a friend of manna's who travelled to Venezuela and stumbled on a huge cubensis flush in the jungle, taking three prints on the spot. Treat the details as community lore rather than documented fieldwork.
- The original cluster is said to have come from the mountains of Venezuela, and people repeat that its wild, vigorous behaviour shows it came from altitude. That is an attractive narrative, not a measured fact.
- The name is widely read as Venezuela plus the number three, apparently a nod to it being one of the three prints reportedly taken at the find. Nobody has published a definitive explanation.
- It is often described as one of the trickiest cubes to work with because it acts so wild, a claim that has hardened into reputation through repetition across vendor listings more than through any controlled comparison.
The story
A wild jungle find with a short, short paper trail
Most famous cubes come wrapped in decades of half-remembered forum lore. VZ3 is refreshingly different, because its story is recent enough that you can actually follow it, even if you still have to take the details on trust. By most accounts the line traces to a friend of a hobbyist known online as manna, who travelled to Venezuela and came across a large wild Psilocybe cubensis flush in the jungle. The story goes that three spore prints were taken at the spot, and one of them eventually reached manna.
From there the trail is straightforward as these things go. Manna is said to have grown the wild specimen out, taken fresh prints, and run it a few more times before passing material on to contacts in Amsterdam, which is how it filtered into wider circulation. That is about as much documented history as exists, and it is worth being clear that the rest is repetition rather than record.
The charm of VZ3 is not a grand myth. It is that the mushroom is barely a few steps removed from a wild Venezuelan collection, and apparently still behaves like it.
Close to the mother genetics
The recurring note on VZ3 is that it acts wild. Growers have described it as one of the trickier cubes to keep happy, and the usual explanation is that it sits very close to its original wild mother genetics rather than having been smoothed out over many generations of selection. The cluster is reportedly said to have come from the mountains, with people inferring an altitude origin from how vigorously it behaves. For a collector that is the interesting part. VZ3 is presented less as a polished showpiece and more as a relatively raw geographic line, which is a fair reason to want one under the scope. None of that changes the biology on the slide: it is a plain, dark-printing cubensis like any other.
The species
Meet Psilocybe cubensis
VZ3 (Venezuela) is a collector’s line of a single, well-travelled species. Psilocybe cubensis was first written up in 1906 by the American mycologist Franklin Sumner Earle, from a specimen found in a cattle field in Cuba, which is where the name comes from. He originally called it Stropharia cubensis; Rolf Singer moved it into the genus Psilocybe in 1948.
The genus name is a tidy bit of Greek: psilos (“bare”) plus kubē (“head”), for the smooth, peelable skin of the cap, so the full name reads roughly as “the bare-headed mushroom from Cuba.”
- Family
- Hymenogastraceae (older books say Strophariaceae)
- Genus
- Psilocybe (Fr.) P. Kumm., 1871
- Species
- Psilocybe cubensis (Earle) Singer, 1948
- Basionym
- Stropharia cubensis Earle, 1906
- This product
- VZ3 (Venezuela), a collector’s cultivar of the species
- Type locality
- Cuba (where it was first named)
How you’d know it
Field marks
These describe the mature mushroom for reference and identification.
Golden-brown cap
As a wild-type cubensis the mature cap is the familiar warm gold to caramel brown, often deeper at the centre and paler toward the rim, opening from rounded to broad and flat with age. Wild-collected lines like this can be a little less uniform than long-domesticated strains.
Pale fibrous stem
Whitish to off-white and fibrous, bruising blue-green where handled. A leftover partial veil typically leaves a ring (annulus) on the stem that often catches falling spores and darkens to purple-brown.
Gills that darken in
Crowded gills run pale grey when young and deepen toward near-black as the spores ripen, the standard cubensis progression as the print colour develops underneath.
Blue bruising
Like any Psilocybe cubensis, damaged flesh bruises blue-green. That colour is an enzyme turning psilocybin into psilocin, which oxidises into blue pigments. A classic field mark of the genus.
Where it comes from
A dung-lover with a wanderer’s history
Psilocybe cubensis is coprophilic, a fancy word for dung-loving. In the wild it lives on the droppings of big grazing animals, classically cattle and water buffalo, fruiting from warm, humid pasture. It does not grow on wood and it does not partner with tree roots.
You’ll find it across the warm parts of the world: the Gulf Coast of the United States, Mexico, Central and South America, Southeast Asia and Australia. It was named from Cuba, but where the lineage truly began is an open question. A 2026 study describing its closest wild relative in southern Africa suggests the deep roots are Old-World, the mushroom having apparently travelled with grazing herds long before anyone gave it a Latin name.
The main event
Under the microscope
This is what you actually bought the spores for. Put a print or a drop from a syringe on a slide and here’s what shows up.
- Shape & size. Smooth, thick-walled and subellipsoid, like a slightly squashed rugby ball, roughly 11.5–17 µm long by 8–11 µm wide (the figures Paul Stamets settled on).
- The germ pore. Look for a single pale, flattened dot at one end. That’s the one thin spot in the wall where, in nature, a mushroom would begin, and a real cubensis hallmark.
- Pale alone, dark in a crowd. A single spore looks honey-amber with the light behind it; only in a mass do they read deep purple-brown to black. So a near-black print but pale spores on the slide is normal optics, not a dud.
- What you’ll need. Find the field at 100×, study shape and the germ pore at 400×, and get the wall crisp at 1000× under oil. A touch of methylene blue or KOH lifts the contrast.
- The legal bit, and why it’s true. A dormant spore carries no psilocybin or psilocin at all; that chemistry only appears later in living tissue. That is exactly why the spores are legal to own and study in the UK.
Choose your format
Print, syringe, vial or swab?
Same lab-grade genetics in every option. The honest difference is shelf life versus how soon you’re at the scope.
Spore print
Keeps longest
Spores dropped straight onto sterile foil. Stored cool and dry it outlasts everything else here, so it’s the one to reach for if you’re building a collection to keep for years.
Spore syringe
Ready tonight
Spores suspended in sterile water, ready to go straight onto a slide. The quickest way to be looking down the microscope this evening. Comes in 3 mL and 12 mL.
Vial & swab
Compact
A sealed glass vial is a tidy middle ground; a sterile swab is the most travel-friendly, robust little format for adding a strain to your reference set.
At a glance
The spec sheet
- Species
- Psilocybe cubensis
- Strain
- VZ3 (Venezuela) (collector’s cultivar)
- Spore print
- Dark purple-brown to near-black, heavy depositor
- Spore shape
- Subellipsoid, smooth, thick-walled, with a germ pore
- Spore size
- ~11.5–17 × 8–11 µm
- Basidia
- Mostly 4-spored, ~20–30 × 7–10 µm
- Wild habitat
- Coprophilic, on herbivore dung & warm pasture
- Climate
- Subtropical to tropical
- Intended use
- Microscopy, research & collecting only
Dig deeper
Further reading
Independent, non-commercial sources, no shops, just good information.
- Psilocybe cubensis on Wikipedia: the species overview.
- The genus Psilocybe: taxonomy and the family reshuffle.
- Index Fungorum: the formal nomenclature record.
- Proc. Royal Society B (2026): the African wild-relative study.
Common questions
Frequently asked
Yes, for microscopy and research. A dormant spore contains no psilocybin or psilocin, so the spores themselves are not a controlled substance in the UK. We sell them strictly for microscopy, taxonomy and collecting, never for cultivation.
By the accepted account, yes: it is said to descend from a single wild flush found in Venezuela, brought into circulation by a hobbyist known online as manna. The story is consistent across the people who distribute it, but it is recent and lightly documented, so we present it as the community account rather than verified fieldwork.
It is generally read as Venezuela plus the number three, apparently referencing it being one of three spore prints reportedly taken at the original find. Nobody has published a definitive explanation, so treat that as the popular reading rather than confirmed fact.
Standard cubensis spores: smooth, thick-walled and roughly oval (subellipsoid), pale amber individually and dark purple-brown in a mass, each with a small flattened germ pore at one end. Find them at 100x, study them at 400x, and get the wall sharp at 1000x under oil immersion.
Not in the way that matters for study. It is a plain cubensis, so it deposits a dark purple-brown to near-black print like the others. Any wildness people describe is about how it grows, not about the spores you put under the microscope.
Cool, dark and dry. A fridge (not freezer) suits syringes and vials; prints keep happily in a sealed bag somewhere cool. Stored well, a print stays viable for study for years.
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For microscopy, taxonomy and collecting only.Sold for legal research. Not for cultivation. Spores contain no controlled substances. We trust you to be responsible.