
Psilocybe tampanensis
Psilocybe tampanensis
Moderate6/10
Famous for producing 'philosopher's stones' — dense underground sclerotia (truffles) that contain psilocybin. Tampanensis is the species behind the legal truffle market in the Netherlands and offers a lucid, philosophical experience distinct from typical mushroom trips.
Onset
30–60 min
Peak
1.5–2.5 hrs
Duration
4–6 hrs
Grow Difficulty
Intermediate
Effects
Philosophical clarityLucid thinkingGentle visualsCreative inspirationEmotional warmth
Experience Profile
IntrospectiveCreativeCalm
Dosage Guide (Dried)
Microdose
0.5–1g (fresh truffle)
Low
5–7g (fresh truffle)
Moderate
10–15g (fresh truffle)
High
15–20g (fresh truffle)
Heroic
25g+ (fresh truffle)
Best For
- Legal access (Netherlands)
- Philosophical exploration
- Truffle microdosing
Safety Notes
Fresh truffle dosing is very different from dried mushroom dosing
Only one wild specimen ever found
Origin
Tampa, Florida — single specimen found in 1977
Appearance
Small, conical, brown fruiting bodies; primarily cultivated for underground sclerotia (truffles)
Gallery



Did You Know?
The entire global supply of tampanensis descends from a single mushroom found by Steven Pollock in Tampa, Florida in 1977 — making it one of the most extreme genetic bottlenecks in cultivated fungi.
This information is for educational purposes only. It is not medical advice. Always consult qualified healthcare professionals before making decisions about psychoactive substances.