Fig. 29
From: Ethnobotany of Mexican and northern Central American cycads (Zamiaceae)
![Fig. 29](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs13002-018-0282-z/MediaObjects/13002_2018_282_Fig29_HTML.png)
A crown of thorns fashioned from a yazn-gua (Dioon holmgrenii) leaf, Santiago Textitlán, Sierra Sur, Oaxaca, 2008. Such crowns are worn by boys in a Holy Week (Semana Santa) processional