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A striking new species of Dioon (Zamiaceae) from pine and pine-oak forest of Guerrero, Mexico
Martínez-Domínguez L, Nicolalde-Morejón F, Stevenson DW, Lorea-Hernández FG, Vergara-Silva F
PhytoKeys 274 : 229-245 (2026)
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New Species:
Dioon nuusaviorum
Authoritative glossary, universal trait order, and standardized checklists of taxonomically informative traits for the extant Cycadales
Haynes JL
Phytotaxa 743 (1) : 1-63 (2026)
DOI
Ceratozamia popolucana (Zamiaceae): A new species from Los Tuxtlas, Veracruz, Mexico
Pérez-Farrera MA, Vovides AP, Díaz Jiménez P, Martínez-Martínez MG, Sánchez-Tinoco MY, Moreno-Méndez G, Gutiérrez-Ortega JS
Phytotaxa 760 (1) : 077-092 (2026)
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Zamia urarinorum (Cycadales, Zamiaceae), a new cycad species from wetland forests of Loreto, Peru
Calonje M, Zárate-Gómez R, Jones MA, Segalla R, Martín Brañas M, Hidalgo Pizango CG, Roca Alcázar F
Phytotaxa 741 (1) : 1-17 (2026)
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Critical review of morphological trait assessment in cycad (Cycadophyta: Cycadales) taxonomy: Importance of consistency and need for standardization
Haynes JL
Phytotaxa 738 (1) : 1-335 (2026)
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Ceratozamia popolucana (Zamiaceae): A new species from Los Tuxtlas, Veracruz, Mexico

Journal Article
📖
Pérez-Farrera MA, Vovides AP, Díaz Jiménez P, Martínez-Martínez MG, Sánchez-Tinoco MY, Moreno-Méndez G, Gutiérrez-Ortega JS. 2026. Ceratozamia popolucana (Zamiaceae): A new species from Los Tuxtlas, Veracruz, Mexico. Phytotaxa 760 (1): 077-092. https://doi.org/10.11646/phytotaxa.760.1.4.

Abstract

Ceratozamia popolucana sp. nov., a newly discovered cycad species from Los Tuxtlas Biosphere Reserve, Veracruz, Mexico, is described and compared with C. subroseophylla and C. dominguezii. The species is characterized by shorter and thinner trunks, shorter leaves, cherry-red emerging leaves with yellowish to whitish tomentum, olive-green leaflets, and light-green emerging female cones. The authors preliminarily assess it as Critically Endangered (CR B2ab(iii)).

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