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Breyten Van der Merwe

4 papers in the library · 2 citations · publishing 2024-2026

Papers

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Psilocybin use among Basotho healers and non-healers in southern Africa

April 23, 2026 Eli Stark-Elster, Mamosebetsi Sethathi, Breyten Van der Merwe et al.

Reliable documentation of the traditional use of serotonergic psychedelics has long been confined to the Americas. Prevailing narratives often overstate the global prevalence and uniformity of traditional psychedelic use, extrapolating from a limited set of well-documented cases. Here, we report evidence of psilocybin mushroom use among Basotho traditional healers and non-healers in Lesotho and...

Discovery of the closest free-living relative of the domesticated ‘magic mushroom’ Psilocybe cubensis in Africa

Proceedings of the Royal Society B: Biological Sciences March 11, 2026 Alexander J. Bradshaw, Cathy Sharp, Breyten Van der Merwe et al. 2 citations

The psychedelic mushroom Psilocybe cubensis is cultivated worldwide for recreational and medicinal use. Described initially from Cuba in 1906, there has been substantial debate about its origin and diversification. The prevailing view is that P. cubensis was inadvertently introduced to the Americas when cattle were introduced to the continent from Africa and Europe (approx. 1500 CE), but that...

DOI: 10.1098/rspb.2025.2270 (opens in new tab) Full text (opens in new tab) Domestication Ancestor Clade Phylogenetic tree +5

A description of two novel Psilocybe species from southern Africa and some notes on African traditional hallucinogenic mushroom use.

Mycologia July 2, 2024 Breyten Van der Merwe, A Rockefeller, A Kilian et al.

Two new Psilocybe species (Hymenogastraceae), P. ingeli and P. maluti, are described from southern Africa. Morphology and phylogeny were used to separate the two novel fungi from their closest relatives in the genus. Psilocybe ingeli was found fruiting on bovine manure–enriched grasslands in the Kwa-Zulu Natal Province of South Africa and differs from its closest relative P. keralensis and...

DOI: 10.1080/00275514.2024.2363137 (opens in new tab) Animals Cattle Agaricales Fruiting bodies, fungal +14

Discovery of the closest free-living relative of the domesticated “magic mushroom” Psilocybe cubensis in Africa

Alexander J. Bradshaw, Cathy Sharp, Breyten Van der Merwe et al. preprint

Abstract The “magic mushroom” Psilocybe cubensis is cultivated worldwide for recreational and medicinal uses. Described initially from Cuba in 1904, there has been substantial debate about its origin and diversification. The prevailing view, first proposed by the Psilocybe expert Gastón Guzmán in 1983, is that P. cubensis was inadvertently introduced to the Americas when cattle were introduced...