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Psilocybe ovoideocystidiata

Guzmán et Gaines 2007

Psilocybe ovoideocystidiata
FamilyHymenogastraceae
GenusPsilocybe
PotencyVery High
Cultivable✅ Yes — Moderate (outdoor)
HabitatLignicolous — Riverbanks, decaying wood

Common Names

🇬🇧 EnglishOvoids, Spring Wavy Caps

Description

Notable for fruiting in spring instead of autumn, commonly in floodplains and near rivers.

Ecology

Strongly associated with Japanese Knotweed and alluvial deposits.

lens_blur Cap (Pileus)

Size:1.5-5 cm
Shape:Convex
Color:Caramel orange
Surface:Hygrophanous
Margin:Smooth

view_list Gills (Hymenium)

Attachment:Adnate
Color:Purplish brown
Spacing:Moderate

straighten Stipe (Stem)

Size:3-9 x 0.3-0.8 cm
Color:White to yellow
Surface:Fragile ring, bulbous, rhizomorphs
Ring/Veil:Fragile ring

blur_circular Spores (Microscopy)

Shape:Rhomboids
Dimensions:8-12 x 5-7 µm
Print:Dark purple
Wall:Thick
Germ pore:Present

colorize Flesh

Color:Pale
Bruising:Intense blue
Odor:Farina-spicy
Taste:Farinaceous

Alkaloid Profile (% Dry Weight)

Psilocybin
0.45 – 1.25%
Psilocin
0.10 – 0.45%
Baeocystin
0.00 – 0.00%
Aeruginascin
0.10 – 0.50%
Total max:1.70% dry weight

Sources

Guzmán & Gaines 2007

Habitat and Ecology

🌍TypeLignicolous
🌱SubstrateRiverbanks, decaying wood
⛰️ElevationLow
📅SeasonSpring (April to June)

Geographic Distribution

This USA (Ohio)Introduced to Europe

⚠️ Lookalike Species

Confusion with these species can be dangerous or fatal. Always consult an expert mycologist.

warning
Galerina marginata — MDeadly

It fruits in autumn, spores rusty.

info
Agrocybe spp. — Edible/Non-toxic

Brown spore print.

📚 Scientific References

  • Guzmán et Gaines 2007
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