Results 51 to 60 of about 1,837 (208)
Usos y conocimiento tradicional de las gimnospermas en el noreste de Oaxaca, México
Acta Botanica Mexicana, 2019 Antecedentes y Objetivos: En México existen alrededor de 156 especies de gimnospermas nativas pertenecientes a seis familias. Para el estado de Oaxaca, se registran 45 especies de gimnospermas y sus habitantes poseen un sobresaliente conocimiento ...
Luis Alberto Bernal-Ramírez +5 more
doaj +1 more source
Cícadas, fósiles vivientes del reino vegetal [PDF]
, 2017 Fil: Martínez, Leandro Carlos Alcides. Instituto de Botánica Darwinion; ArgentinaFil: Artabe, Analía Emilia Eva. Universidad Nacional de La Plata.
Artabe, Analía Emilia Eva +1 more
core +2 more sources
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 +2 more
wiley +1 more source
G-fibers and Florin ring-like structures in Dioon (Zamiaceae)
Botanical Sciences, 2016 Cuticle information and epidermal characters have great potential in systematic studies. However, micromorphology and anatomical studies on cycads are relatively scarce in comparison to similar studies on other gymnosperms.
Andrew P. Vovides, Sonia Galicia
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A first characterization of the leaflet endophytic prokaryotic community in Dioon cycads
Plant Species Biology, Volume 40, Issue 6, Page 547-555, November 2025.This study presents the first characterization of leaflet endophytic prokaryotic communities in Mexican cycads of the genus Dioon. Using 16S rRNA metabarcoding, we describe the composition and diversity of foliar bacterial communities across species and biogeographic regions, highlighting patterns potentially shaped by environmental conditions.
Gonzalo Contreras‐Negrete +4 more
wiley +1 more source
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 +4 more
wiley +1 more source
Extrapolating demography with climate, proximity and phylogeny: approach with caution [PDF]
, 2016 Plant population responses are key to understanding the effects of threats such as climate change and invasions. However, we lack demographic data for most species, and the data we have are often geographically aggregated.
Buckley, Y.M. +3 more
core +4 more sources
The diversity of the pollen tube pathway in plants: toward an increasing control by the sporophyte [PDF]
, 2016 12 Pags.- 1 Fig.Plants, unlike animals, alternate multicellular diploid, and haploid generations in their life cycle. While this is widespread all along the plant kingdom, the size and autonomy of the diploid sporophyte and the haploid gametophyte ...
Herrero Romero, María +2 more
core +7 more sources
A new classification and linear sequence of extant gymnosperms [PDF]
, 2011 A new classification and linear sequence of the gymnosperms based on previous molecular and morphological phylogenetic and other studies is presented.
Chase, Mark W. +5 more
core +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 +2 more
wiley +1 more source