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Omphalotus olearius, [2] commonly known as the jack-o'-lantern mushroom, is a poisonous orange gilled mushroom that to an untrained eye appears similar to some chanterelles. It is notable for its bioluminescent properties. It is found in woodland areas in Europe, where it grows on decaying stumps, on buried roots or at the base of hardwood trees.
Unlike chanterelles, the Eastern jack-o'-lantern is poisonous to humans when eaten, whether raw or cooked, and typically causes vomiting, cramps, and diarrhea. Although some older literature claims the name is synonymous with Omphalotus olearius, phylogenetic analysis confirms the two as distinct species. [3]
To an untrained eye, O. olivascens appears similar to some chanterelles, but unlike the chanterelle, the jack-o'-lantern mushroom has true, blade-like [4] gills (rather than ridges) and it can have olive coloration that chanterelles lack; also, Omphalotus species are saprotrophic, grow directly on wood, and are bioluminescent. [5]
What is a jack-o-lantern? A jack-o-lantern is, as the name might suggest, a lantern—one made out of a root vegetable. (Nope, it doesn’t have to be a pumpkin—more on that later!)
The best known and type species is the jack-o'-lantern mushroom (Omphalotus olearius). Species of Omphalotus have been mistaken for chanterelles. All Omphalotus species are presumed poisonous, causing gastrointestinal symptoms. Some Omphalotus species have bioluminescent properties. [3]
One of the earliest examples of the pumpkin as a jack-o’-lantern is an 1846 newspaper account called “The Jack o’Lantern,” about a young boy taking a pumpkin that a farmer did not “make ...
12. Show off your "trick" side with this winking jack-o'-lantern! 13. BIG eyes and a lil' mouth make for one rather adorable pumpkin! 14. While Halloween and Día de los Muertos are different ...
[9] [10] The poisonous species in the genus Omphalotus (the jack-o'-lantern mushrooms) have been misidentified as chanterelles, but can usually be distinguished by their well-developed, unforked true gills. [a] Species of Omphalotus are not closely related to chanterelles.