Results 51 to 60 of about 231 (141)

Chemical Element Concentrations of Cycad Leaves: Do We Know Enough?

open access: yesHorticulturae, 2020
The literature containing which chemical elements are found in cycad leaves was reviewed to determine the range in values of concentrations reported for essential and beneficial elements.
Benjamin E. Deloso   +5 more
doaj   +1 more source

Evolutionary and ecological trends in the Neotropical cycad genus Dioon (Zamiaceae): An example of success of evolutionary stasis

open access: yesEcological Research, Volume 39, Issue 2, Page 131-158, March 2024.
Cycads represent an example of the success of evolutionary stasis. Despite its conservative nature, the cycad genus Dioon has been able to diversify due to phylogenetic, stochastic, and environmental factors associated with the biogeography of Mexico. Abstract Cycads represent an example of the success of evolutionary stasis. Despite their early origin,
José Said Gutiérrez‐Ortega   +8 more
wiley   +1 more source

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

Caterpillars of Eumaeus childrenae (Lepidoptera: Lycaenidae) feeding on two species of cycads (Zamiaceae) in the Huasteca region, Mexico

open access: yesRevista de Biología Tropical, 2003
There are few genera of butterflies that feed on cycads. Among them the genus Eumaeus (Lycaenidae) presents aposematic coloration in all its life stages.
Raúl Contreras-Medina   +2 more
doaj  

A modification to the SCAR (Sequence Characterized Amplified Region) method provides phylogenetic insights within Ceratozamia (Zamiaceae)

open access: yesRevista Mexicana de Biodiversidad, 2015
Phylogenetic relationships among closely related plant species is still problematic. DNA intergenic regions often are insufficiently variable to provide desired resolution or support.
Dolores Gonzalez Hernandez
doaj   +1 more source

Reasons of leaves withering in tropical plants cultivated under greenhouse conditions

open access: yesActa Agrobotanica, 2013
In order to determine the reasons of necrosis of exotic plants leaves cultivated in greenhouses plants belonging to ten following species were examined: Ceratozamia mexicana Brongn., Stangeria eriopus (Kunze) Nash (Cycadaceae), Eriobotrya japonica Lindl.
Z. Czerwiński   +3 more
doaj   +1 more source

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

open access: yesBotanical Journal of the Linnean Society, 2004
Ceratozamia becerrae sp. nov. is described and illustrated. This species from Tabasco and Chiapas has affinity with C. miqueliana H. Wendl. from Veracruz and Chiapas, but differs in morphology and habit of leaves, leaflets, male and female strobili and trunk. Ceratozamia becerrae is considered part of the C.
ANDREW P. VOVIDES   +5 more
openaire   +1 more source

Publishing trends for the Cycadales, the most threatened plant group

open access: yesJournal of Threatened Taxa, 2016
Trends in published cycad research within various fields of study were determined using proceedings from international conferences on cycad biology and Google Scholar to access the primary literature.
April N. Cascasan, Thomas E. Marler
doaj   +1 more source

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