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Gutiérrez-Ortega, José Said, et al. "The Phylogeography of the Cycad Genus Dioon (Zamiaceae) Clarifies Its Cenozoic Expansion and Diversification in the Mexican Transition Zone." Ann Bot 2018.

Gutiérrez-Ortega, José Said, et al. "The Phylogeography of the Cycad Genus Dioon (Zamiaceae) Clarifies Its Cenozoic Expansion and Diversification in the Mexican Transition Zone." Ann Bot 2018.