shroomverse
The Shroomverse alien in a larch forest below pale dolomite peaks glowing at sunset in northern Italy.

SPECIES ATLAS · PSILOCYBE

Psilocybe medullosa

Named by (Bres.) Borov., 2007

Psilocybin record: confirmed (two modern analyses)

A history of a name and a chemistry record, not an identification guide. No name, picture or description can show that a wild mushroom is safe, and poisonous mushrooms are mistaken for magic mushrooms. If someone may have eaten a wild mushroom, call a poison centre without waiting for symptoms: 1-844-POISON-X in most of Canada, 1-800-463-5060 in Quebec. Call 911 if they’re unconscious, not breathing or having a seizure.

How it was named.

Bresadola described Naucoria medullosa in 1898 in Fungi Tridentini 2: 53. Borovička moved it to Psilocybe in 2007 (Mykologický Sborník 84: 114). In 2015 Borovička and co-authors showed it differs from the North American P. silvatica, with which it had been synonymised, and designated a Czech epitype.

Named
(Bres.) Borov., 2007
First published as
Naucoria medullosa Bres. (1898)
Other names in the records
Naucoria medullosa Bres., Galera medullosa (Bres.) Kühner, Galerina medullosa (Bres.) Clémençon, Phaeogalera medullosa (Bres.) M.M. Moser
Type specimen
Italy: holotype S F-16066, collected by G. Bresadola (Borovička et al. 2015); Bresadola published it in Fungi Tridentini. An epitype from the Czech Republic (PRM 909630) was designated in 2015. (Borovička et al. 2015, Persoonia 34: 1-9 (full text PMC4510267); pin = Wikidata coordinates (Q16289))
The pin marks the type locality at the level of detail the record gives: one historical collection, not a range or a place to look. Land outlines: Natural Earth.

The psilocybin record.

Every analysis we could verify, oldest first, including results that found nothing. No amounts are given: they vary between collections and this is not a potency guide.

  1. 2015

    Confirmed Psilocybin and psilocin detected for the first time (not quantified)

    Method: GC-MS after silylation. Borovička et al. 2015, Persoonia 34: 1-9 (full text PMC4510267)

  2. 2022

    Confirmed Psilocybin, psilocin, baeocystin and norbaeocystin found in 11 fruiting bodies from three collections, at low levels

    Method: UHPLC-MS/MS. Gotvaldová et al. 2022, Int. J. Mol. Sci. 23: 14068 (full text PMC9693126)

What the record doesn’t show: Both analyses come from one research group in the Czech Republic and use European collections only.

Records on file.

GBIF, the global biodiversity database, held 458 occurrence records under this name, 0 of them from Canada, when we checked on October 25, 2026. Records include unverified observations and old misidentifications, so counts show where people have recorded the name, not where it grows.

See the name on GBIF

Sources

Compiled from the sources above; last checked .

Save to Pinterest