Panaeolus semiovatus

(Also known as Panaeolus separatus)

Ringed Panaeolus

Order Agaricales, Family Psathyrellaceae

CAP TAN, SHINY WHEN DRY, SHAPED LIKE HALF AN EGG

Cap:  3-9 cm wide; hemispheric to oval, becoming conical; tan; viscid when wet, shiny when dry

GILLS BROWN-BLACK, MOTTLED

Gills:  attached; broad; whitish then brown-black; often mottled with white edges

STALK WHITISH WITH RING

Stalk:  8-18 cm long, 5-15 mm thick; enlarged base; whitish Ring:  membranous, evanescent, often absent, sometimes leaving fibrous zone

SPORE PRINT BLACKISH

Spores 15-20 x 8-11 µm, elliptical, smooth with germ pore

ON DUNG, MULCH

EDIBILITY UNKNOWN

Lookalikes:

P. papilionaceus -- smaller cap with fringe of veil remnants, no ring, dry cap

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Nice specimens of this uncommon mushroom have been found in mulched flower beds.  It has been reported to be hallucinogenic, but this has yet to be confirmed.


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