One of the more widely known bioluminescent mushrooms, the so-called jack-o'-lantern glows in both its mycelia and the gills on the underside of its cap. A dark-adapted eye can usually see it ...

Most of the time, bioluminescence - light emission seen in some organisms - takes place when luciferin and enzyme partner luciferase come into contact with one another.

No, it's not Halloween yet, but a special type of bright orange fungi have some mushroom enthusiasts glowing with excitement. Jack-o'-lantern mushrooms have been spotted in the Windsor-Essex, Ont.