Lookalikes to rule out
Deadly dapperlings
deadlyLepiota brunneoincarnata and relatives contain amatoxins and look similar.
Parasol Mushroom
deadlyParasols are far larger with a snakeskin stem.
Fairy Ring Mushroom
toxicFairy ring mushroom has no scales and widely spaced gills.
Identification
The cap is small, rarely over 5 cm, white with a smooth brown center and concentric rings of small brown scales. Gills are white and free. The thin stem has a fragile ring that is easily lost. The smell is unpleasant, like rubber or gas.
Why it matters
Stinking dapperling itself causes gastrointestinal poisoning, and it belongs to a group of small Lepiota that includes species with amatoxins. Rule: never eat a small parasol.
Memorable fact
Its smell is often the first clue that a small parasol-like mushroom is a Lepiota.
