Mushroom Atlas

Grooved Bonnet

Mycena polygramma – Inedible

Grooved Bonnet (Mycena polygramma)

Roots, stumps, snags in deciduous and coniferous forests, parks. Summer, autumn.

Fruiting bodies small. Cap 3-5 cm across, bell-shaped-conical, eventually flattened, with an umbo, wrinkled-furrowed, matt, brownish-grey, dark greyish-brown in the centre. Gills brownish, white, grey when mature, adnate. Stem 5-12x0.3-0.5 cm, longitudinally grooved, grey, greyish-brown, with a bluish tinge, whitish-frosted, white-mealy near the gills. Flesh thin, whitish, greyish, smelling of flour and wood, not bitter. Characteristic features: cap pleated-furrowed, stem long, usually grows singly. Appears singly or several fruiting bodies together. Inedible, not rare.