Cap: 1.5 cm to 5.5 cm broad to olive. center convex to conic.
translucent when moist, appears pleated towards bottom portion of cap.
Often staining blue to blue-green when damaged.
Gills: Attached. Dark purple.
Stem: 50-70 x 2-3 mm long. White creme to yellow top. Covered
with white filaments.
Spores: 10-13.2 x 6.2-7µ.
Sporeprint: Purple gray.
Habitat: Psilocybe baeocystis was 1st discovered in Eugene,
Oregon in 1945. Once considered rare, this species was a very common
mushroom appearing in mulched garden beds under rhododendrons and rose
bushes during the late 1970s and early 1980s, sometimes growing in amongst
groupings of Psilocybe stuntzii in lawns and with Psilocybe cyanescens in alder
mulched garden beds. Although this species grows abundantly some in
lawns or grassy areas rich in humus or lignin and/or in alder wood chips
and bark mulch, it is sometimes very hard to find.
Distribution: From Eugene, Oregon to Seattle, Washington, up
to British Columbia, Canada. Once considered rare, it is now common.
Season: June to October in lawns. From late September through
December and sometimes into January in mulched garden beds.
Dosage: 1 to 2 large mushroom specimens or from 2 to 4 small
Comment: A very potent species when fresh.
Stains intensely blue when damaged. Loses much potency when drying.