Cycad Literature Database

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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
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)
DOI
Encephalartos lanatus-associated bacteria and extracellular enzyme activities improve soil nutrition in nutrient-deficient grassland ecosystems
Sigasa M, Magadlela A, Pérez-Fernández MA, Otang-Mbeng W, Suinyuy TN
Scientific African 29 : e02879 (2025)
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Novel species of Cycas (Cycadaceae) from Mindanao Island, Philippines

Journal Article
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Agoo EMG, Madulid DA, Callado JR. 2019. Novel species of Cycas (Cycadaceae) from Mindanao Island, Philippines. Mem. New York Bot. Gard. 117 : 529-539.

Abstract

Two new species, Cycas mindanaensis and C. flabellata, from Mindanao, Philippines, are described and illustrated. These are compared with C. edentata, C. lacrimans , and C. sancti-lasallei , which are also found within this second largest island in the archipelago. Conservation status of the species are assessed as threatened, mainly by anthropogenic activities.