InedibleStrophariaceae
Protostropharia semiglobata
Dung roundhead
Sticky yellow dome on dung, an inactive lookalike for dung Psilocybe.
- Cap
- Hemispherical, 1-4 cm, pale straw yellow, very sticky when wet.
- Gills
- Adnate, pale grey turning purple-black.
- Stem
- 40-120 mm, long, thin, sticky, with a faint ring zone.
- Flesh
- Pale, does not blue.
- Spore print
- Purple-black
- Habitat
- Horse and cow dung and heavily manured grass.
- Distribution
- Worldwide.
- Season
- Spring to autumn.
- Bruising
- None.
- Odour
- Not distinctive.
Key features
- ▪Sticky hemispherical yellow cap
- ▪Long thin sticky stem
- ▪No bluing
Field tests
- Purple-black spore print but zero blue bruising
Edibility
Inedible, not toxic, not active.
Warning
Shares habitat and spore colour with P. cubensis; bluing is the separator.
Lookalikes
Photo and feature-based identification is probabilistic. Never consume a wild mushroom on the basis of an app result — confirm with an experienced mycologist.