The jack-o-lantern fungus is also known by many other names. These are mostly due to the fungus's resemblance to other objects. The most common synonym is the "omphalotus illudens." It is also known as the "false chanterelle," as the mushroom is often mistaken for edible chanterelle mushrooms. Other synonyms include "glowing mushroom," due to the fungus's ability to emit a faint greenish glow in the dark, and "foxfire fungus," which refers to a bioluminescent glow. It is also called the "poisonous mushroom" as the fungus contains toxins harmful to humans and animals. It is essential to identify the jack-o-lantern fungus correctly to prevent poisoning accidents.