GBIF, the Global Biodiversity Information Facility, gathers names and occurrence records from many sources into one open database. Researchers use its name backbone for counts: on 25 October 2026 it listed 324 accepted species under Psilocybe and 49 under Deconica (GBIF, Psilocybe; GBIF, Deconica). Those totals still mix species that taxonomists would now move to Deconica (Bradshaw et al., 2022).
For Canada, GBIF carries data from national collections, including the Canadian National Mycological Herbarium, which describes itself as the largest fungarium of non-lichenized fungi in Canada, with over 350,000 specimens. Records can be very thin: on 24 October 2026 GBIF held just 15 records under the name Psilocybe quebecensis worldwide (GBIF).
GBIF maps reflect where people collected and reported, so gaps often mean no one looked. Names on records can be wrong or out of date, and a single correction can shift a small count a lot. GBIF records also give no permission or guidance to collect anything.
Sources
- GBIF species API: accepted species under Psilocybe
- GBIF species API: accepted species under Deconica
- GBIF dataset: Canadian National Mycological Herbarium
- GBIF occurrence search: Psilocybe quebecensis
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