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SPECIES ATLAS · INOCYBE

Inocybe corydalina

Named by Quél., 1875

Psilocybin record: confirmed (several 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.

Quélet published Inocybe corydalina in 1875 in the Mémoires de la Société d'Émulation de Montbéliard. Kuyper (1985) treated erinaceomorpha as a variety of it, but Index Fungorum now accepts Inocybe erinaceomorpha Stangl & J. Veselský as a separate species. In 2025 its psilocybin biosynthesis enzymes were characterised.

Named
Quél., 1875
Other names in the records
Agaricus corydalinus (Quél.) Pat., Inocybe corydalina f. albidula (Britzelm.) R. Heim, Inocybe albidula (Britzelm.) Sacc.
Type specimen
Not given by Index Fungorum. (Index Fungorum record, Inocybe corydalina)
The record we cite gives no map position for the type specimen. 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. 1985

    Confirmed Psilocybin and baeocystin found in var. corydalina (France 1977, Austria 1982) and var. erinaceomorpha (Germany 1982); in one sample baeocystin exceeded psilocybin; muscarine absent

    Method: TLC in three systems, confirmed by HPLC. Stijve, Klán & Kuyper 1985, Persoonia 12: 469-473 (full text, archive.org, CC BY)

  2. 1985

    Reported Psilocybin detected in a collection near Etterzhausen (Regensburg district), 1984; muscarine not clearly detected

    Method: high-resolution TLC. Besl & Mack 1985, Z. Mykol. 51: 183-184 (full text, Zobodat, CC BY-ND)

  3. 2018

    Reported Shown to produce psilocybin without the established Psilocybe gene cluster; an alternative cluster proposed (preprint, not peer reviewed)

    Method: genomics and chemistry (preprint abstract). Awan et al. 2018, bioRxiv preprint (abstract)

  4. 2022

    Confirmed Aeruginascin, baeocystin, norbaeocystin, psilocybin and psilocin quantified in four fruiting bodies from two fungarium collections; psilocin not detected in the older collection

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

  5. 2025

    Confirmed Four recombinant psilocybin-pathway enzymes characterised; the pathway is branched, with baeocystin as a second end product

    Method: in vitro enzyme assays. Schäfer et al. 2025, Angew. Chem. Int. Ed. 64: e202512017 (abstract)

What the record doesn’t show: All published fruiting-body analyses we found used European herbarium or fungarium material, and older results include a taxon (erinaceomorpha) now treated as a separate species.

Records on file.

GBIF, the global biodiversity database, held 3,165 occurrence records under this name, 8 of them from Canada, when we checked on October 25, 2026. GBIF held eight Canadian occurrence records on 25 October 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 .

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