Two Truths, One Lie

Which fascinating fact is actually a fib?

1. These mushrooms are often found growing in clumps on rotten pumpkins, which is where the name “jack-o’-lantern mushroom” comes from.
2. A jack-o’-lantern mushroom’s gills — the thin ridges on the underside of the cap — glow in the dark with a ghostly green light.
3. Jack-o’-lantern mushrooms are poisonous. Although eating one isn’t usually lethal, it will make you very sick for several days.