Results 51 to 60 of about 833 (187)

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

open access: yesPlant 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

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

open access: yesPlant 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

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

open access: yesRevista 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   +3 more
doaj   +1 more source

Szárazföldi környezeti rekonstrukció, ökoszisztéma dinamika és klímaváltozás az oligocén folyamán a Belső Kárpáti Térségben. = Terrestrial environment reconstruction, ecosystem dynamics and palaeoclimate during the Oligocene at the Inner Carpathian Region. [PDF]

open access: yes, 2007
A Belső Kárpáti Térség és az ezt körülvevő Alp-Kárpát-Dinári térség terrén kollázsa olyan korai oligocén flóramaradványos rétegeket tartalmaz, amelyekek számos információt hordoznak e területek ősföldrajzi kapcsolatára és klímájára vonatkozóan ...
Erdei, Boglárka   +2 more
core  

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

open access: yesPlant 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

ESTRUCTURA POBLACIONAL Y DISTRIBUCIÓN ESPACIAL DE Ceratozamia mexicana BRONGN. (ZAMIACEAE) EN UN AMBIENTE CONSERVADO Y EN UNO PERTURBADO [PDF]

open access: yes, 2012
Vegetal populations are affected by biotic and abiotic factors that influence the regeneration processes. The aims of this study were to know the population structure of Ceratozamia mexicana under two contrasting conditions (conserved site and disturbed ...
Iglesias, Lourdes G.   +5 more
core   +2 more sources

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

open access: yesBotanical Journal of the Linnean Society, 2003
Ceratozamia huastecorum sp. nov. is from an isolated meseta or tepui-like mountain in the Huasteca region of northern Veracruz State, Mexico. It has affinity to C. morettii Vazq.Torres & Vovides from the Mexican transvolcanic mountain range, which lies over 200 km to the south.
SERGIO AVENDAÑO   +2 more
openaire   +1 more source

Evolution and Biological Activity of Cycadophyta [PDF]

open access: yes, 2023
Worldwide, environment gradients effects on leaf physical and chemical defenses traits, were studied in very phylogenetically heterogeneous plants; leading to results that may be confounding.
De Angeli, Gustavo M
core   +1 more source

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

open access: yesPlant 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   +4 more
wiley   +1 more source

Botanical Garden [PDF]

open access: yes, 2013
The Botanical Garden of the University of Latvia was founded in 1922. In the 15 hectare territory of the garden you can find greenhouses and outdoor collections with about 6000 different plants from the dunes of the Baltic sea, forests of Australia ...
University of Latvia
core  

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