Notes: This mushroom contains the psycho-active chemical psilocybin. It is also extremely bitter.
Cap: size 6-15cm; colour orange/brown; shape convex at first, then flattened with a broad umbo.
Gills: yellow at first, then rusty brown as the spore mature; adnate; crowded; broad.
Stem: length 6-12cm; width 1-3cm; colour paler than the cap; swelling toward the base; membranous ring soon collapsing into a less distinct ring-zone.
Spores: rusty brown.
Flesh: pale yellow.
Habitat: found growing tufted on the stumps of deciduous trees.