What is the meaning of the word "jack-o-lantern fungus"?

Definitions:

  1. A poisonous, orange, luminescent fungus that grown in clusters at the base of decomposing hardwood tree stumps. copy to clipboard NOUN
    • In the dense forests of various regions, the jack-o-lantern fungus, often referred to as the Ghost Fungus, emanates an eerie glow during the night. copy to clipboard
  2. Refers to several species of bioluminescent mushroom belonging to the genus Omphalotus; known for their striking orange to yellow coloration and their ability to emit a ghostly greenish glow in the dark, resembling the flickering light of a jack-o-lantern. copy to clipboard NOUN
    • During the autumn months, the jack-o-lantern fungus often forms clusters, creating a mesmerizing spectacle of shimmering lights against the backdrop of fallen leaves. copy to clipboard

Synonyms: