Deconica is a genus of mushroom-forming fungi in the family Strophariaceae. It was formerly considered synonymous with
Psilocybe until molecular studies showed that genus to be polyphyletic, made of two major clades: one containing bluing, hallucinogenic species, the other non-bluing and non-hallucinogenic species.
Deconica contains species formerly classified in the sections
Deconica and
Coprophila of
Psilocybe.
(Wikipedia)