Monograph of Ceratozamia (Zamiaceae, Cycadales): an endangered genus

(Zamiaceae, Cycadales), is a member one of the most endangered seed plant groups. Species of grow from near sea level up to 2,100 meters in Mexico and Mesoamerica. We present a modern taxonomic treatment of , based on fieldwork combined with detailed study of herbarium specimens in and from Mexico a...

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Bibliographic Details
Published in:PhytoKeys 2022-09, Vol.208, p.1-102
Main Authors: Martínez-Domínguez, Lilí, Nicolalde-Morejón, Fernando, Vergara-Silva, Francisco, Stevenson, Dennis Wm
Format: Article
Language:English
Subjects:
Americas
Ceratozamia
Coniferous forests
Cycadales
Endangered species
Geographical distribution
Morphology
New species
Sea level
Taxonomic revision
Taxonomy
Tropical forests
Zamiaceae
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Summary:(Zamiaceae, Cycadales), is a member one of the most endangered seed plant groups. Species of grow from near sea level up to 2,100 meters in Mexico and Mesoamerica. We present a modern taxonomic treatment of , based on fieldwork combined with detailed study of herbarium specimens in and from Mexico and Central America. This new revision is based on incorporation of morphological, molecular and biogeographic data that have been previously published in circumscriptions of species complexes by our group. Detailed morphological descriptions of the 36 species of are provided and relevant characters for the genus are discussed and described. A majority are endemic to Mexico and are concentrated at high elevations in mountainous areas. Synonymies, lectotypifications, etymologies, taxonomic notes, distribution maps, illustrations and detailed species-level comparisons are included, as well as a dichotomous key for identification of all species. Data on distributional ranges and habitats of all species are summarized. D.W.Stev., Mart.-Domínguez & Nic.-Mor., is described from evergreen tropical forests of Belize and we highlight new populations and distributional ranges for Mart.-Domínguez & Nic.-Mor. and Pérez-Farr. & Iglesias in the Mesoamerican region.
ISSN:1314-2011
1314-2003
DOI:10.3897/phytokeys.208.80382