Results 61 to 70 of about 2,516 (209)

Paisia, an Early Cretaceous eudicot angiosperm flower with pantoporate pollen from Portugal [PDF]

open access: yes, 2018
A new fossil angiosperm, Paisia pantoporata, is described from the Early Cretaceous Catefica mesofossil flora, Portugal, based on coalified floral buds, flowers and isolated floral structures.
Argue CL   +20 more
core   +1 more source

Extrapolating demography with climate, proximity and phylogeny: approach with caution [PDF]

open access: yes, 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

Genomic insights into adaptation to heterogeneous environments for the ancient relictual Circaeaster agrestis (Circaeasteraceae, Ranunculales).

open access: yesNew Phytologist, 2020
Investigating the interaction between environmental heterogeneity and local adaptation is critical to understand the evolutionary history of a species, providing the premise for studying the response of organisms to rapid climate change.
Xu Zhang   +12 more
semanticscholar   +1 more source

Specific duplication and dorsoventrally asymmetric expression patterns of Cycloidea-like genes in zygomorphic species of Ranunculaceae. [PDF]

open access: yes, 2014
Floral bilateral symmetry (zygomorphy) has evolved several times independently in angiosperms from radially symmetrical (actinomorphic) ancestral states. Homologs of the Antirrhinum majus Cycloidea gene (Cyc) have been shown to control floral symmetry in
Cossard, G.   +5 more
core   +5 more sources

Ranunculales

open access: yes, 2014
Published as part of Peruzzi, Lorenzo, Conti, Fabio & Bartolucci, Fabrizio, 2014, An inventory of vascular plants endemic to Italy, pp.
Peruzzi, Lorenzo   +2 more
openaire   +2 more sources

Taxonomic decomposition of the latitudinal gradient in species diversity of North American floras [PDF]

open access: yes, 2017
Aim: To test the latitudinal gradient in plant species diversity for self-similarity across taxonomic scales and amongst taxa. Location: North America. Methods: We used species richness data from 245 local vascular plant floras to quantify the slope and ...
Enquist, BJ   +6 more
core   +1 more source

Ranunculales Papaveranae

open access: yes, 2011
Papaverales = Ranunculales Papaveranae = Ranunculanae Papilionaceae = Fabaceae Pappophoraceae = Poaceae Papyraceae = Cyperaceae Paracryphiaceae, 405 Paracryphiales, 66 Parianaceae = Poaceae Paridaceae = Melanthiaceae Paridales = Liliales Parietariaceae = Urticaceae Parnassiaceae = Celastraceae Parnassiales = Celastrales Paronychiaceae ...
Reveal, James L.   +3 more
openaire   +2 more sources

Breaking the limits - multichromosomal structure of an early eudicot Pulsatilla patens mitogenome reveals extensive RNA-editing, longest repeats and chloroplast derived regions among sequenced land plant mitogenomes

open access: yesBMC Plant Biology, 2022
Background The mitogenomes of vascular plants are one of the most structurally diverse molecules. In the present study we characterize mitogenomes of a rare and endangered species Pulsatilla patens.
Kamil Szandar   +5 more
doaj   +1 more source

Morphology, Taxonomy, Anatomy, and Palynology of the Opium Poppy (Papaver somniferum L.) Cultivation in Northern Thailand

open access: yesPlants, 2023
In this paper, we present the morphology, taxonomy, anatomy, and palynology of Papaver somniferum. A detailed morphological description and illustrations of the species are provided, along with information about the identification, distribution ...
Chatchai Ngernsaengsaruay   +7 more
doaj   +1 more source

Aquilegia as a Model System for the Evolution and Ecology of Petals [PDF]

open access: yes, 2012
The ranunculid genus Aquilegia holds extraordinary promise as a model system for investigating a wide range of questions relating to the evolution and ecology of petals.
Hodges, Scott A., Kramer, Elena M.
core   +1 more source

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