Psilocybe semilanceata
Lawn fungus · 1–3 g dried · sharp, narrow cap
- Cap
- Conical to bell-shaped, 5–25 mm, with a distinct nipple
- Habitat
- Damp grassland and pasture, never directly on dung
- Spore print
- Dark purple-brown
- Season
- September – November
- Bruising
- Bluish at the stem base when handled
Deadly lookalike
Panaeolina foenisecii
The common lawn mower's mushroom shares habitat and size. Spore print colour and the pointed umbo are the reliable separators.
Photo and feature-based identification is probabilistic. Never consume a wild mushroom on the basis of an app result — confirm with an experienced mycologist.