The snow-flecked peak and high grasslands of the Nevado de Toluca volcano.

Mesoamerica · Culture

Matlatzinca

Matlatzinca / Pjiekakjoo

The Nevado de Toluca — Xinantécatl — the sacred volcano above the Matlatzinca country. — Photo via Wikimedia Commons · Creative Commons — see source · Source

Toluca Valley and the slopes of the Nevado de Toluca, State of México

Written in History

In the highland valleys west of Mexico City, the Matlatzinca are among the central Mexican peoples in whom Gastón Guzmán recorded ceremonial mushroom use — a quieter tradition than the Mazatec, but part of the same broad Mesoamerican inheritance.

A central Mexican tradition

West of the Valley of Mexico, in the highlands around the Nevado de Toluca, the Matlatzinca are one of several central Mexican peoples whose ceremonial mushroom use is documented — if lightly — in the mycological and ethnographic record. They belong to the same broad Mesoamerican world as the Nahua, in which the teonanácatl had a recognised sacred role.

Under the Nevado

The Matlatzinca live in the shadow of the Nevado de TolucaXinantécatl, the “naked man” — a snow-capped volcano whose summit crater holds two sacred lakes, the Sun and the Moon, where offerings have been carried since long before the Spanish. It is one of the great weather-making mountains of central Mexico, a place where rain and the ancestors are petitioned. The blue-staining Psilocybe of its pine meadows — P. mexicana, P. aztecorum — grow within sight of that summit, and belong to the same conversation with the mountain.

In the record

The clearest modern documentation comes from Gastón Guzmán, whose overview of hallucinogenic mushrooms in Mexico enumerates the Indigenous peoples with recorded ceremonial use and places the Matlatzinca among them.1

Read alongside

This is a thinly documented case: real, but without the deep ethnographic literature that surrounds the Mazatec. It is set out more fully, with its sister peoples, in the field note Mexico’s other mushroom peoples.

Footnotes

  1. Guzmán, Hallucinogenic Mushrooms in Mexico: An Overview (2008); Schultes, Teonanácatl (1940).

The record

Historical record

  1. Postclassic–colonial

    Within the central Mexican world

    The Matlatzinca of the Toluca Valley shared in the broader Nahua-adjacent religious world in which sacred mushrooms had a recognised place.

    Colonial text
  2. 20th c.

    Recorded by mycologists

    Gastón Guzmán's surveys of Mexican mushroom use count the Matlatzinca among the peoples with documented ceremonial practice.

    Contemporary ethnography

Evidence

The support for this entry, separated by kind. Different kinds of evidence carry different weight.

Contemporary ethnography
Guzmán, 'Hallucinogenic Mushrooms in Mexico: An Overview' (2008), which enumerates the Indigenous peoples with recorded use.
Botanical / mycological
Highland species such as Psilocybe mexicana and P. aztecorum occur across the region.
◐ Open questions

What remains uncertain

  • Per-community ethnography is much thinner than for the Mazatec; the record is real but sparse.
Sources & editorial record

Sources & further reading

  1. Gastón Guzmán (2008). Hallucinogenic Mushrooms in Mexico: An Overview. Economic Botany 62(3).

    Species-level overview; identifies P. caerulescens (Nahua teotlaquilnanácatl) among ceremonially used mushrooms and counts Indigenous peoples with recorded use.

    Peer-reviewed paperPeer-reviewedOpen accessView source ↗

  2. Richard Evans Schultes (1940). Teonanácatl: The Narcotic Mushroom of the Aztecs. American Anthropologist / Botanical Museum Leaflets, Harvard.

    The paper that reconnected the colonial word teonanácatl to living Oaxacan mushroom use, drawing on Schultes’ 1938–39 fieldwork among Mazatec, Chinantec, and Zapotec communities.

    Peer-reviewed paperPeer-reviewedArchive scanView source ↗

Editorial record

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Last reviewed

15 July 2026

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