Results 31 to 40 of about 4,995 (201)

Vascular Plants from the Journey through Portugal (1797–1801) by Hoffmannsegg and Link at the Herbarium of the Real Jardín Botánico of Madrid

open access: yesPlants, 2022
During the journey through Portugal by Hoffmannsegg and Link (1797–1801), these authors collected an appreciable number of specimens, most of which have been lost.
Leopoldo Medina, Carlos Aedo
doaj   +1 more source

Integrating developmental and macroevolutionary approaches reveals a staminodial origin of all alternisepalous organs in Caryophyllaceae

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise The identity of sterile floral organs in second‐whorl, alternisepalous positions within Caryophyllaceae remains contentious, having been described as staminodes, “petaloids,” or petals homologous with those of other Pentapetalae. Limited ingroup and outgroup sampling and floral developmental data and inadequate phylogenetic comparative
Riley J. Rees   +2 more
wiley   +1 more source

Whole Plastome Sequencing Within Silene Section Psammophilae Reveals Mainland Hybridization and Divergence With the Balearic Island Populations

open access: yesFrontiers in Plant Science, 2019
Reconstructing the phylogenetic relationships within Caryophyllaceae tribe Sileneae has been obscured by hybridization and incomplete lineage sorting. Silene is the largest genus in the Caryophyllaceae, and unraveling its evolutionary history has been ...
José Carlos del Valle   +4 more
doaj   +1 more source

The Outline of Seed Silhouettes: A Morphological Approach to Silene (Caryophyllaceae)

open access: yesPlants, 2022
Seed morphology is an important source of information for plant taxonomy. Nevertheless, the characters under study are diverse, and a simple, unified method is lacking in the literature.
José Javier Martín-Gómez   +5 more
doaj   +1 more source

Barreras para la sostenibilidad integral en la Universidad

open access: yesRevista Iberoamericana de Educación, 2017
Durante el 2015, ha habido importantes acontecimientos para la promoción del Desarrollo Sostenible a nivel internacional, como la Declaración de los Objetivos de Desarrollo Sostenible (ODS), la Conferencia de la ONU sobre el Cambio Climático COP 21 y la ...
Sílvia Albareda Tiana   +3 more
doaj   +1 more source

Le portail des données naturalistes SILENE en région Provence-Alpes-Côte d’Azur

open access: yesNetcom, 2013
SILENE est un portail internet de diffusion de données naturalistes développé en partenariat par plusieurs organismes producteurs et gestionnaires de données, les services de l’Etat et du Conseil Régional.
Julie Delauge   +3 more
doaj   +1 more source

Integrating machine learning, deep learning, and image analysis for seed species classification

open access: yesApplications in Plant Sciences, EarlyView.
Abstract Premise The growing demand for wildflower seeds in ecological restoration requires reliable species identification, yet current market products often contain heterogeneous species. As seed identification is labor‐intensive and requires advanced botanical knowledge, we evaluated multiple segmentation and classification approaches to determine ...
Jonathan Ashworth   +6 more
wiley   +1 more source

Local trampling disturbance effects on alpine plant populations and communities: Negative implications for climate change vulnerability

open access: yesEcology and Evolution, 2018
Global change is modifying species communities from local to landscape scales, with alterations in the abiotic and biotic determinants of geographic range limits causing species range shifts along both latitudinal and elevational gradients.
Nathalie Isabelle Chardon   +4 more
doaj   +1 more source

Plant ecdysteroids in aerial part of the Far Eastern species of Caryophyllaceae

open access: yesTurczaninowia, 2015
Distribution of integristerone A, 20-hydroxyecdysone, ecdysone, 2-deoxy-20-hydroxyecdysone has been analyzed during blossom phase in East Asian species of Lychnis, Silene, Melandrium and Sagina (Сaryophyllaceae).
E. V. Novozhilova   +3 more
doaj   +1 more source

Amplified drought induced by climate change reduces seedling emergence and increases seedling mortality for two Mediterranean perennial herbs

open access: yesEcology and Evolution, 2021
Seedling recruitment is a bottleneck for population dynamics and range shift. The vital rates linked to recruitment by seed are impacted by amplified drought induced by climate change. In the Mediterranean region, autumn and winter seedling emergence and
Suzon Garnier   +7 more
doaj   +1 more source

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