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Jack O'Lantern
Jack O'Lantern
(Omphalotus olearius)
Jack O'Lantern sculpture
Jack O'Lantern
sculpture, acrylic paint
by "Wildman"
The Jack O'Lantern is a very dangerous mushroom with a dry, smooth, wavy-lobed orange to yellow-orange cap 3-8 inches wide, convex to flat, then becoming sunken in the center, with a knob. The margin begins incurved, then turns upward.

Jack O'Lantern Mushrooms
Immature Jack-O'-Lantern Mushrooms
photo by "Wildman"
The orange-yellow sharp-edged, narrow gills, close together, descend the stalk. The spore print is pale cream.
Jack O'Lanterns From Below
Jack-O'-Lantern Mushrooms from Below
photo by "Wildman"

The yellow-orange dry, solid, smooth, curved stalk is 3-8 inches long, 3/8 to 5/8 inches thick, tapering toward the blackish base.

This decomposer grows clustered on or around deciduous stumps or buried wood, often in spectacularly large quantities.

Jack O'Lanterns
Jack-O'-Lantern Mushrooms
photo by "Wildman"
It grows in eastern North America and California.
The Jack-o'-lantern is poisonous, causing severe gastrointestinal upset that can last for 2 days. Poisons

People have confused it the choice, edible chanterelle, a much smaller orange mushroom that grows on the ground, with shallow, forked (branched) gills.

The mushroom gets its name because it glows dark! Wait until night, keep all light out of a room, go into a closet, close the door (don't lock yourself in!), and wait 5 minutes until your eyes adjusted completely to the dark. Then you'll see the gills glowing pale-green!


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