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Panaeolus cinctulus

(Bolton) Sacc.

Panaeolus cinctulus
FamilyBolbitiaceae
GenusPanaeolus
PotencyLow
Cultivable✅ Yes — Easy (compost)
HabitatCompost/Lawns — Fertilizer, compost, lawns
SynonymsPanaeolus subbalteatus

Common Names

🇬🇧 EnglishBanded Mottlegill, Weed Panaeolus

Description

Often called "weed mushroom" due to its prevalence in fields, cut pastures, and compost.

Ecology

Frequent decomposer of grasses and composted straw.

lens_blur Cap (Pileus)

Size:1.5-5 cm
Shape:Convex
Color:Brown with a dark marginal ring
Surface:Hygrophanous
Margin:Dark band

view_list Gills (Hymenium)

Attachment:Adnate
Color:Mottled brown to black
Spacing:Tight

straighten Stipe (Stem)

Size:2-9 x 0.2-0.4 cm
Color:Reddish-brown
Surface:Smooth
Ring/Veil:Without a ring

blur_circular Spores (Microscopy)

Shape:Lemon-shaped
Dimensions:11-14 x 7-9 µm
Print:Black
Wall:Opaque
Germ pore:Central

colorize Flesh

Color:Pale
Bruising:Rare blue
Odor:Fungus
Taste:Fungus

Alkaloid Profile (% Dry Weight)

Psilocybin
0.16 – 0.65%
Psilocin
0.00 – 0.01%
Baeocystin
0.00 – 0.00%
Total max:0.66% dry weight

Sources

Stamets 1996

Habitat and Ecology

🌍TypeCompost/Lawns
🌱SubstrateFertilizer, compost, lawns
⛰️ElevationVaried
📅SeasonSpring to autumn

Geographic Distribution

Cosmopolitan

⚠️ Lookalike Species

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

info
Panaeolina foenisecii — Mildly non-toxic

Dark brown spore print, not black.

📚 Scientific References

  • Saccardo
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