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Psilocybe strictipes

Singer and Smith



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Cap: 0.5-3 cm broad, conic at first, expanding to convex, campanulate, and eventually broadly convex, and typically not sharply umbonate but may have a low umbo. Surface smooth, translucent-striate near the margin, which may have slight remnants of the veil and viscid when moist from a separable gelatinous pellicle. Dark grayish brown to cinnamon brown, fading to straw or light yellow in drying. Flesh sometimes bruising bluish when injured.

Gills: Attachment adnate, sometimes subdecurrent, and tearing free from the stem in drying. Chocolate brown with whitish edges when mature.

Stem: 40-130 mm long by 2-3 mm thick. White to yellow to yellowish brown. Equal, straight to flexuous, typically tough, cartilaginous, and decorated with fibrillose patches, veil remnants, and basal mycelium that can bruise bluish. (Base is not adorned with cordlike rhizomorphs.) Partial veil thinly cortinate, fragile, and rarely leaving an annular zone on the upper regions of the stem.

Microscopic features: Spores dark purple brown in deposit, subellipsoid to suboblong, 10-12 by 5.5-8 microns. Basidia 4-spored. Pleurosyctidia absent. Cheilocystidia 21-45 by 7-10 microns, lageniform with an extended neck, 2-3.5 microns thick.

Habit, habitat, and distribution: Fruits in the late summer to late fall in the Pacific Northwest, England, northern and central Europe, Siberia and Chile. Typically found in rich, grassy areas such as lawns, along roadsides, and in fields - but not on dung, although common in fields with and without manure.

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