Cycad Literature Database

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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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Expanding the Cycad Horticulture Toolbox: Air Layer Protocols for Cycas Stems
Marler TE, Cruz GN
Horticulturae 11 (7) : 814 (2025)
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CC BY 4.0
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A new species of Encephalartos (Zamiaceae) from Northeastern Zaire

Protologue
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Bamps PR, Lisowski S. 1990. A new species of Encephalartos (Zamiaceae) from Northeastern Zaire. Mem. New York Bot. Gard. 57 : 152-155.

Abstract

Encephalartos ituriensis, a new cycad from northeastern Zaire, is described and illustrated and its relationship with its nearest relatives is presented.