Pileus (Cap): 4.5 cm across, convex to subumbonate, chestnut or orangish brown to yellowish brown to pearly cream color, hygrophanous, glabrous, sub-viscid, translucent-striate near the margin, from slightly to highly undulated in maturity, with irregular yellowish, brownish, or bluish tones, sometimes white when dry. Flesh thick, pliant. Bruises blue and more notably, green, where injured.
Lamellae (Gills): Attachment adnate attachment and range from whitish to rusty brown, lavender, or dark purple brown.
Stipe (Stem): 1.5 - 9 cm by 1 -7 mm, equal, somewhat subbulbous, hollow, base sometimes hypogeous, smooth at the top and often having small scales near the bottom, colored whitish with irregular yellowish, brownish, or bluish tones. The partial veil is variable, ranging from a thin cortina that leaves a barely perceptible annular zone, to a substantial membrane that leaves a fairly persistent annulus.
Microscopic features: Spores, Dark purple brown, rhomboid to subrhomboid in face view, subellipsoid in side view, thick-walled, 8 x 6 um. Two types of cheilocystidia and pleurocystidia are present.
Season: They are most common from April to mid June but they occasionally fruit as late as November
Habitat and Distribution: In the Pacific Northwest, Psilocybe ovoideocystidiata grows in wood chipped areas and mulch. In its natural habitat, Psilocybe ovoideocystidiata is common in the Ohio river valley. Often found in the woody debris of overflow areas, along rivers and streams.