Results 41 to 50 of about 231 (141)

Listado florístico del Cerro Quetzal (Polígono III ) de la Reserva de la Biosfera El Triunfo, Chiapas, México

Botan‪ical Sciences, 2012
Se realizó un listado florístico para el Cerro Quetzal (Polígono III) y zonas adyacentes de la Reserva de la Biosfera El Triunfo, Chiapas, México. Se integró una base de datos con 1,513 registros, incluye 140 familias, 432 géneros, 795 especies y 24 ...
Miguel Ángel Pérez-Farrera, Rubén Martínez-Camilo, Nayely Martínez-Meléndez, Oscar Farrera-Sarmiento, Susana Maza-Villalobos   +4 more
doaj   +1 more source

Integrative taxonomy of the Ceratozamia mexicana Brongn. (Zamiaceae) species complex from a phylogeographic perspective

Plant Species Biology, Volume 40, Issue 6, Page 530-546, November 2025.
Recent research has ignited a renewed interest in Ceratozamia cycads, unveiling their remarkable diversity. While previous studies primarily focused on morphology, this investigation employs a multidisciplinary approach, integrating phylogenetics, morphology, and ecological niches. Our methods identify seven distinct lineages as separate species.
Anwar Medina‐Villarreal, Jorge González‐Astorga, Alejandro Espinosa de los Monteros   +2 more
wiley   +1 more source

Conservación de los recursos fitogenéticos: uso inteligente de la biodiversidad

Revista Biológico Agropecuaria Tuxpan, 2018
Los recursos fitogenéticos están representados por toda la variedad y combinaciones posibles de rasgos que permiten a las especies vegetales adaptarse a los cambios en el medio; a mayor cantidad de rasgos y combinaciones, mayor es la probabilidad de que
Pablo Octavio Aguilar, Mario Adolfo García Montes, Dulce María Galván Hernández, Manuel Alejandro Macedo Villareal, Arturo S´ánchez González   +4 more
doaj   +1 more source

Spatial distribution pattern of the endangered endemic cycad Ceratozamia fuscoviridis (Zamiaceae) in central Mexico

Plant Species Biology, Volume 40, Issue 6, Page 572-583, November 2025.
Spatial distribution pattern were studied for Ceratozamia fuscoviridis, an endangered species in Mexico, based on Ripley's K t and K 12 analysis. Clumped spatial distribution patters was found in individuals of all populations, suggesting low interaction with predators/dispersers and/or evidence of suitable microsites for cycads.
María Teresa Pulido Silva, Juan Carlos Flores‐Vázquez, Maricela Vargas‐Zenteno, Aurelia Vite Reyes, Andrew P. Vovides   +4 more
wiley   +1 more source

Preliminary Note on Ceratozamia

Botanical Gazette, 1907
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +2 more sources

Progress in the study of dioecy in Mexican cycad species and its implications for conservation

Plant Species Biology, Volume 40, Issue 6, Page 556-571, November 2025.
Cycads are endangered dioecious plants of great ornamental value that have a long period of sexual maturity. Therefore, it is crucial to have methods for early sex determination that can help to develop effective strategies for their conservation. Abstract Dioecy is a system of sexual reproduction in plants, characterized by the spatial separation of ...
Lourdes Georgina Iglesias Andreu, María Ydelia Sánchez‐Tinoco, Miguel Angel Perez‐Farrera   +2 more
wiley   +1 more source

Conceptos taxonómicos, fenología y epifitismo: el caso de Ceratozamia tenuis (Zamiaceae)

Revista Mexicana de Biodiversidad, 2018
En este estudio abordamos la identidad taxonómica de Ceratozamia tenuis (Dyer) D. W. Stev. & Vovides, 2016, un binomio que históricamente ha estado relacionado con el concepto taxonómico de C. mexicana Brongn., 1846. Describimos los estadios fenológicos
Lilí Martínez-Domínguez, Fernando Nicolalde-Morejón, Dennis W. Stevenson, Quiyari Santiago-Jiménez   +3 more
doaj   +1 more source

Preface of Special Feature “Current topics on cycad biology: Deciphering the Rosetta Stone of plant evolution.” Part II: Perspectives from natural history

Plant Species Biology, Volume 40, Issue 6, Page 527-529, November 2025.
Often regarded as “living fossils,” cycads are well known for retaining many ancestral traits, which makes them particularly fascinating to naturalists and scientists alike. Cycads provide insights into the functional and developmental processes underlying the origin and diversification of seed plants, and they may help clarify how they colonized the ...
José Said Gutiérrez‐Ortega
wiley   +1 more source

Population genetics of Zamia decumbens (Zamiaceae, Cycadales), an endangered cycad from the Maya Mountains of Belize

Plant Species Biology, Volume 40, Issue 4, Page 324-340, July 2025.
We utilized 10 microsatellite loci to examine the genetic diversity, genetic structure, and demographic history of Zamia decumbens Calonje, Meerman, M.P. Griff. & Hoese, an endangered cycad species occurring in small disjunct populations on karst topography within the Maya Mountains of Belize.
Michael Calonje, Alan W. Meerow, Jan Meerman, Javier Francisco‐Ortega, M. Patrick Griffith   +4 more
wiley   +1 more source

Sex ratio and spatial distribution of Cycas panzhihuaensis in Sichuan Panzhihua cycad National Nature Reserve

Plant Species Biology, Volume 40, Issue 4, Page 354-365, July 2025.
The sex ratio of the endemic gymnosperm Cycas panzhihuaensis is determined by the potential sex‐determining gene MADS‐Y. The study examined the sex dimorphism and spatial distribution of male and female individuals. The genotypic sex ratio of the C. panzhihuaensis population is balanced. Additionally, there is a significant clustering effect in spatial
Yong‐Qiong Yang, Lei‐Lei Yang, Jiang‐Bin Lin, Jing‐Ru Xiang, Bin Zhou, Huan Li, Shao‐Wei Ma, Ling‐Fei Li, Shou‐Zhou Zhang   +8 more
wiley   +1 more source