Psilocybe galindoi
Common name: ATLantis truffle, Philosopher's Stone (cultivated form)
Field Identification
| Cap | 1-2cm, convex to plane, brown to yellowish-brown, viscid when moist |
| Gills | Adnate, brownish, crowded, edges whitish |
| Stem | 3-6cm x 1-3mm, whitish to pale brown, equal, fibrous |
| Spore Print | Dark purplish-brown, ellipsoid, 9-12 x 6-8 µm |
| Habitat | Subtropical meadows and grasslands, meadow soils with buried organic matter; forms sclerotia (hardened underground bodies) rather than typical caps in many conditions |
| Distribution | Mexico, Georgia (US), parts of Central America; cultivated worldwide for sclerotia (so-called 'magic truffles') |
| Season | Year-round for sclerotia; cap fruiting in warmer wet seasons |
Key Identification Feature
Formation of dense underground sclerotia (truffles); viscid brown cap; found in subtropical grasslands
⚠ Dangerous Lookalikes
Psilocybe tampanensis (also produces sclerotia, nearly identical use); Sclerotinia species (not psychoactive, different habitat)
Notes
Best known for its sclerotia, commercially sold as 'ATLantis truffles' or 'philosopher's stones' in Netherlands smart shops. Less commonly encountered as cap-forming mushrooms. Psilocybin content approximately 0.5-1.0% dry weight in sclerotia.
Legal Status Warning
Psilocybin-containing mushrooms are controlled substances in most jurisdictions. This guide is for educational purposes only. Wild foraging for psilocybin mushrooms may be illegal in your location. Never consume wild mushrooms without positive identification from an expert mycologist — misidentification can be fatal.
All Wild Species
- Psilocybe semilanceata (Liberty Cap)
- Psilocybe azurescens (Flying Saucers, Azzies)
- Psilocybe cyanescens (Wavy Caps, Blue Halos)
- Psilocybe mexicana (Teonanácatl (historical Mazatec name))
- Panaeolus cyanescens (Blue Meanies, Pan Cyan)
- Psilocybe tampanensis (Magic Truffles, Philosopher's Stones)
- Psilocybe subaeruginosa (Subs (Australia/NZ))
- Psilocybe stuntzii (Stuntz's Blue Legs, Blue Ringers)
- Psilocybe bohemica (Bohemian Psilocybe)
- Psilocybe pelliculosa (Conifer Psilocybe)
- Psilocybe weilii (Weil's Psilocybe)
- Psilocybe hoogshagenii (Derrumbe)
- Gymnopilus spectabilis (Big Laughing Gym, Spectacular Rustgill)
- Psilocybe strictipes (Rigid-Stemmed Psilocybe)
- Psilocybe cyanofibrillosa (Blue-Haired Psilocybe, Rhododendron Psilocybe)
- Psilocybe samuiensis (Ko Samui Psilocybe)
- Psilocybe aucklandii (Auckland Psilocybe)
- Psilocybe galindoi (ATLantis truffle, Philosopher's Stone (cultivated form))
- Psilocybe natalensis (Natal Super Strength)
- Psilocybe liniformans (European liberty cap lookalike)
- Psilocybe fimetaria (Dung loving psilocybe)
- Psilocybe makarorae (New Zealand native psilocybe)
- Psilocybe caerulipes (Blue-foot psilocybe)
- Psilocybe ovoideocystidiata (Ovoid cystidiate psilocybe)
- Psilocybe zapotecorum (Zapotec sacred mushroom)
- Psilocybe serbica (Bohemian psilocybe (var. serbica))
- Gymnopilus purpuratus (Purple Gymnopilus)