Florida Fungus Found Producing Amatoxin, Psilocybin

Researchers have identified Galerina indica, a small Florida mushroom nicknamed the “dark magic mushroom,” as the first known fungus to produce both psilocybin, which causes psychedelic effects, and deadly amatoxins. The discovery came after the mushroom’s blue-staining flesh prompted chemical testing; researchers also found a previously undescribed amatoxin. The evolutionary origins and purpose of the unusual combination are unclear, though the compounds may help defend the fungus from being eaten, and the findings point to greater diversity in fungal chemistry than previously recognized. The mushroom is potentially lethal and should not be eaten.