Habitat: Bovine, Equine Dung and Enriched Soils
Strain Origin: Unclear, possibly South America.
Cap: 25-50+ mm in diameter, convex to broadly convex to plane at maturity often with persistent acute umbo (nipple). Reddish cinnamon brown maturing to golden brown to light yellow with nearly white edges. Surface dry lacking remnants of universal veil on cap (spots). Flesh white soon bruising bluish green.
Stem: 150+ mm in length, yellowish. Flesh bruising bluish green where injured. Persistent membranous annulus (ring) from partial veil that becomes dusted with purple brown spores at maturity.
Gills: Attachment adnate to adnexed. Grayish coloration in young fruit bodies becoming nearly black in maturity.
Spores: Dark purplish brown, subellipsoid on 4-spored basidia