Results 31 to 40 of about 231 (141)

A new species of Ceratozamia (Zamiaceae) from Chiapas, Mexico [PDF]

Botanical Journal of the Linnean Society, 2001
Ceratozamia zoquorum sp. nov. from the northern mountains of Chiapas, Mexico, is described and illustrated. It has affinities with C. miqueliana Wendl. from Veracruz, but differs in leaf, male female cone and trunk morphology.
MIGUEL A. PÉREZ-FARRERA, ANDREW P. VOVIDES, CARLOS G. IGLESIAS   +2 more
  +4 more sources

Lords of the biosphere: Plant winners and losers in the Anthropocene

PLANTS, PEOPLE, PLANET, Volume 4, Issue 4, Page 350-366, July 2022., 2022
The impact of humans on Earth's biodiversity varies across the Tree of Life. The extirpation and extinction of species is often determined by compatibility with human activities. Here we classify, where data are available, a significant portion (~30%) of vascular plant species as winners or losers with respect to this compatibility and show that ...
W. John Kress, Gary A. Krupnick
wiley   +1 more source

The Seedling of Ceratozamia [PDF]

Botanical Gazette, 1908
n ...
openaire   +1 more source

The dynamic history of gymnosperm plastomes: Insights from structural characterization, comparative analysis, phylogenomics, and time divergence

The Plant Genome, Volume 14, Issue 3, November 2021., 2021
Abstract Gymnosperms are among the most endangered groups of plant species; they include ginkgo, pines (Conifers I), cupressophytes (Conifers II), cycads, and gnetophytes. The relationships among the five extant gymnosperm groups remain equivocal. We analyzed 167 available gymnosperm plastomes and investigated their diversity and phylogeny.
Lubna, Sajjad Asaf, Abdul Latif Khan, Rahmatullah Jan, Arif Khan, Adil Khan, Kyung‐Min Kim, In‐Jung Lee   +7 more
wiley   +1 more source

Ceratozamia schiblii (Zamiaceae): A New Cycad Species from the Eastern Mountains of Oaxaca, Mexico

Taxonomy, 2022
Ceratozamia schiblii (Zamiaceae), a new species endemic to the highlands of eastern Oaxaca, Mexico, is described. The new species is part of the C. robusta species complex, which is a group of closely related species with very similar morphology.
Miguel Angel Pérez-Farrera, José Said Gutiérrez-Ortega, Timothy J. Gregory, Jeffrey Chemnick, Silvia Salas-Morales, Michael Calonje, Pedro Díaz-Jiménez   +6 more
doaj   +1 more source

Discovery of Cyanobacteria Associated with Cycads and Description of Three Novel Species in Desmonostoc (Nostocaceae)

Diversity, 2023
Heterocyte-forming cyanobacteria form symbiotic relationships with several lineages of plants. Here, twenty (20) strains of endosymbiotic cyanobacteria (cyanobionts) with Nostoc-like morphologies were isolated from the highly specialized coralloid roots ...
Melissa H. Pecundo, Tao Chen, Thomas Edison E. dela Cruz, M. Patrick Griffith, Zhangli Hu, Huirong Chen, Nan Li   +6 more
doaj   +1 more source

Molecular and Morphological Phylogenetic Analyses of New World Cycad Beetles: What They Reveal about Cycad Evolution in the New World

Diversity, 2018
Two major lineages of beetles inhabit cycad cones in the New World: weevils (Curculionoidea) in the subtribe Allocorynina, including the genera Notorhopalotria Tang and O’Brien, Parallocorynus Voss, Protocorynus O’Brien and Tang and ...
William Tang, Guang Xu, Charles W. O’Brien, Michael Calonje, Nico M. Franz, M. Andrew Johnston, Alberto Taylor, Andrew P. Vovides, Miguel Angel Pérez-Farrera, Silvia H. Salas-Morales, Julio C. Lazcano-Lara, Paul Skelley, Cristina Lopez-Gallego, Anders Lindström, Stephen Rich   +14 more
doaj   +1 more source

Ceratozamia chinantlensis (Zamiaceae): A New Cycad Species from La Chinantla, Oaxaca, Mexico

Taxonomy
Ceratozamia chinantlensis sp. nov., a new cliff-dwelling cycad species from Sierra de La Chinantla, Oaxaca, Mexico, is described and compared with its congeners.
Miguel Angel Pérez-Farrera, Steven M. Ramirez-Oviedo, Mauricio Gerónimo Martínez-Martínez, Gaspar Moreno Mendez, Ana Guadalupe Rocha Loredo, José Said Gutiérrez-Ortega   +5 more
doaj   +1 more source

Biodiversidad de Zamiaceae en México

Revista Mexicana de Biodiversidad, 2013
Dentro de los grupos actuales de espermatofitas, plantas con semilla, las cícadas cuentan con el registro fósil más antiguo. A pesar de ello, su estatus como “fósiles vivientes” ha sido puesto en entredicho recientemente con base en resultados de ...
Fernando Nicolalde-Morejon, Jorge González-Astorga, Francisco Vergara-Silva, Dennis W. Stevenson, Octavio Rojas-Soto, Anwar Medina-Villarreal   +5 more
doaj   +1 more source

A New Species of Ceratozamia (Zamiaceae) from Veracruz, Mexico

Novon, 1998
Ceratozamia morettii is described from a cloud-forest environment in Veracruz, Mex- ico. The main morphological characters are illus- trated, and comments on related species are made. The new species differs from others in the genus by the near prostrate habit, circinate vernation of the leaves, and wide leaflets with translucent ve- nation. This taxon
Mario Vázquez-Torres, Andrew P. Vovides, Mario Vazquez-Torres   +2 more
openaire   +2 more sources