Extract from Wikipedia article: Psilocybe fuscofulva is a species of mushroom in that grows on Sphagnum moss and rarely decaying wood in peat bogs in North America and Europe. It, alongside Psilocybe fimetaria, are the only species of Psilocybe that have been found with no psilocybin or psilocin content. The phylogenetic placement indicates its close relationship to Psilocybe silvatica and Psilocybe semilanceata. It was previously most commonly known as Psilocybe atrobrunnea but the holotype does not exist and the neotype of this species was lost, so Psilocybe fuscofulva, which was previously regarded as a synonym but has a holotype, was resurrected to replace it.
Mushrooms Psilocybe fuscofulva(?) in sphagnum moss near Kavgolovskoe Lake south from Oselki near Saint Petersburg, Russia, September 29, 2025
Side view of mushrooms Psilocybe fuscofulva(?) in sphagnum moss west from Kavgolovskoe Lake between Oselki and Toksovo near Saint Petersburg, Russia, September 29, 2025
Close-up of mushrooms Psilocybe fuscofulva(?) in sphagnum moss west from Kavgolovskoe Lake between Oselki and Toksovo near Saint Petersburg, Russia, September 29, 2025
Spores (in KOH) of mushrooms Psilocybe fuscofulva(?) collected earlier 9/29/2025 near Kavgolovskoe Lake south from Oselki near Saint Petersburg, Russia, October 19, 2025
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Search of mushroom species for given keywords "Psilocybe fuscofulva" was done through
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