Florida Mushroom Uniquely Combines Psychedelic and Toxic Compounds

WHO:

Yahoo - Mycologists writing in the journal *Current Biology* reported on *Galerina indica*, described as the first-known “dark magic mushroom.”

Yahoo - Andrew Kunik, a former University of Florida plant pathologist and study co-author, said: “I could hardly believe it. We knew it was possible, but tried not to get too excited until we did a more rigorous analysis.”

Yahoo - Bryn Dentinger, a University of Utah mycologist and study co-author, said horizontal gene transfer was likely responsible for the mushroom’s combination of compounds.

Yahoo - Matthew Smith, a University of Florida plant pathologist and Florida’s state mycologist, said the mushrooms are difficult to distinguish even for trained experts. He said identifying potentially poisonous species can help protect people and pets.

Phys.org - The article describes magic mushrooms as containing psychedelic compounds and poisonous mushrooms as containing amatoxins.

WHAT:

Yahoo - *Galerina indica* contains both psilocybin, a psychedelic compound, and poisonous amatoxins. The article calls it the first documented mushroom species known to contain both.

Yahoo - The mushroom is small, brown, and about the size of a thumbnail; it resembles many other fungi.

Yahoo - The article says a recent field survey led to documentation of the species.

Phys.org - The article raises whether a mushroom can contain both psychedelic compounds and amatoxins; the supplied text provides no further details.

WHERE:

Yahoo - *Galerina indica* was discovered in Florida.

Yahoo - Kunik and Smith are associated with the University of Florida; Dentinger is associated with the University of Utah.

WHY:

Yahoo - Evolutionary biologists suspect some mushrooms developed amatoxins as protection against animals that forage on them. The emergence and purpose of psilocybin in fungi remain unclear.

Yahoo - Smith said identifying poisonous or potentially poisonous species matters because they could cause problems for people or pets.

HOW:

Yahoo - Dentinger proposed horizontal gene transfer as a likely explanation for the compounds’ presence. He compared the process to DNA from one organism becoming incorporated into another’s genome and said two independent horizontal gene-transfer events involving these specialized metabolites in one mushroom genus are “unheard of.”

(UPDATED November 13, 2026 04:04 UTC)

Florida researchers identified *Galerina indica*, the first known mushroom containing both psychedelic and poisonous compounds. The small, brown fungus carries psilocybin and dangerous amatoxins. Experts suspect gene transfer brought both together; identifying it could help protect people and pets.