What lawn mushrooms are poisonous to dogs?

Online Answer
In North America, far and away the mushrooms most often involved in dog poisonings are the Amanita species — Amanita phalloides (death cap), Amanita pantherina (panther cap), and Amanita muscaria (fly agaric) — and the Galerina species.
Related Questions 📌
Possession of amounts larger than 0.5 g dried or 5 g fresh lead to a criminal charge..