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650 results for “angiosperm”
Solanum rostratum (Solanaceae) - herbaceous angiosperms - leaf
Image of Solanum rostratum (Solanaceae) - herbaceous angiosperms - leaf
Rosa multiflora (Rosaceae) - woody angiosperms - twig - orientation of petioles
Image of Rosa multiflora (Rosaceae) - woody angiosperms - twig - orientation of petioles
Rosa multiflora (Rosaceae) - woody angiosperms - leaf - whole upper surface
Image of Rosa multiflora (Rosaceae) - woody angiosperms - leaf - whole upper surface
Rosa multiflora (Rosaceae) - woody angiosperms - whole tree (or vine) - general
Image of Rosa multiflora (Rosaceae) - woody angiosperms - whole tree (or vine) - general
Rosa multiflora (Rosaceae) - woody angiosperms - inflorescence - lateral view of flower
Image of Rosa multiflora (Rosaceae) - woody angiosperms - inflorescence - lateral view of flower
Rosa multiflora (Rosaceae) - woody angiosperms - leaf
Image of Rosa multiflora (Rosaceae) - woody angiosperms - leaf
Rosa multiflora (Rosaceae) - woody angiosperms - inflorescence - whole - unspecified
Image of Rosa multiflora (Rosaceae) - woody angiosperms - inflorescence - whole - unspecified
Rosa multiflora (Rosaceae) - woody angiosperms - twig
Image of Rosa multiflora (Rosaceae) - woody angiosperms - twig
Symphyotrichum patens (Asteraceae) - herbaceous angiosperms - stem - showing leaf bases
Image of Symphyotrichum patens (Asteraceae) - herbaceous angiosperms - stem - showing leaf bases
Symphyotrichum patens (Asteraceae) - herbaceous angiosperms - leaf - on upper stem
Image of Symphyotrichum patens (Asteraceae) - herbaceous angiosperms - leaf - on upper stem
Eupatorium purpureum (Asteraceae) - herbaceous angiosperms - stem - showing leaf bases
Image of Eupatorium purpureum (Asteraceae) - herbaceous angiosperms - stem - showing leaf bases
Eupatorium purpureum (Asteraceae) - herbaceous angiosperms - stem - showing leaf bases
Image of Eupatorium purpureum (Asteraceae) - herbaceous angiosperms - stem - showing leaf bases
Eupatorium purpureum (Asteraceae) - herbaceous angiosperms - stem - showing leaf bases
Image of Eupatorium purpureum (Asteraceae) - herbaceous angiosperms - stem - showing leaf bases
Eupatorium purpureum (Asteraceae) - herbaceous angiosperms - leaf - basal or on lower stem
Image of Eupatorium purpureum (Asteraceae) - herbaceous angiosperms - leaf - basal or on lower stem
Eupatorium purpureum (Asteraceae) - herbaceous angiosperms - leaf - on upper stem
Image of Eupatorium purpureum (Asteraceae) - herbaceous angiosperms - leaf - on upper stem
Appendix. The status of global taxonomic checklist preparation for flowering plant families (based on Angiosperm Phylogeny Group II but modified to reflect circumscriptions of existing checklists). If a checklist is complete and available on the Internet then the URL is also given. The species numbers (sp. no.) given are either based on actual working lists (WL) where they exist or are based on Stevens (2006) if no WL is available. Five categories are used to describe the status of a particular working list: 1, checklist complete and accessible via the Internet now; 2, checklist available on Internet by end of 2007 (Asteraceae 2010); 3, checklist complete but not online; 4, some online lists giving partial coverage may be available; 5, no global checklist being compiled so far as known. in Towards Target 1 of the Global Strategy for Plant Conservation: A working list of all known plant species - Progress and prospects
Appendix. The status of global taxonomic checklist preparation for flowering plant families (based on Angiosperm Phylogeny Group II but modified to reflect circumscriptions of existing checklists). If a checklist is complete and available on the Internet then the URL is also given. The species numbers (sp. no.) given are either based on actual working lists (WL) where they exist or are based on Stevens (2006) if no WL is available. Five categories are used to describe the status of a particular working list: 1, checklist complete and accessible via the Internet now; 2, checklist available on Internet by end of 2007 (Asteraceae 2010); 3, checklist complete but not online; 4, some online lists giving partial coverage may be available; 5, no global checklist being compiled so far as known.
Data from: Geographic range dynamics drove ancient hybridization in a lineage of angiosperms
Elucidating the dynamic distribution of organismal lineages has been central to biology since the nineteenth century, yet the difficulty of combining biogeographic methods with shifts in habitat suitability remains a limitation. This integration, however, is critical to understanding geographic distributions, present and past, as well as the time-extended trajectories of lineages. Here, we link previous advances in phyloclimatic modeling to develop a framework that overcomes existing methodological gaps by predicting potential ecological and geographic overlap directly from estimated ancestral trait distributions. We show the utility of this framework by focusing on a clade in the montane angiosperm genus Heuchera, which is noteworthy in that it experienced ancient introgression from circumboreally distributed species of Mitella, lineages now ~1,300 km disjunct. Using this system, we demonstrate an application of ancestral state reconstruction to assess geographic range dynamics in a lineage lacking a fossil record. We test hypotheses regarding inferred past geographic distributions and examine the potential for ancient geographic contact. Application of this multifaceted approach suggests potential past contact between species of Heuchera and Mitella in western North America during cooler periods of the Pleistocene. Integration of niche models and phylogenetic estimates suggests that climatic cooling may have promoted range contact and gene flow between currently highly disjunct species. Our approach has wide applicability for testing hypotheses concerning organismal co-occurrences in deep time.
Angiosperm species dataset sampled at the Serra do Cipó, Brazil.
<p>All Angiosperm species sampled at the 180 plots at five altitudes at the Serra do Cipó, Espinhaço Range, Brazil, their respective botanical families, authorities, and number of occurrences of each species in each of the six vegetation types considered: RO: rocky outcrops; SG: Sandy grassland; StG: Stony grassland; CS: cerrado shrubland; CW = cerrado woodland; WG = wet grassland.</p>
Data from: Temporal and spatial comparisons of angiosperm diversity between eastern Asia and North America
<p>Eastern Asia (EA) and North America north of Mexico (NA) have comparable latitude, land area, and climate, but the overall plant diversity is much higher in EA than in NA. Despite intensive studies on disjunct taxa of the two regions, the temporal and spatial diversity patterns between the two floras remain unclear. Here we explore the floristic differences between EA and NA using the well-studied floras of China and the United States of America (USA) as exemplars, while also employing a newly generated dated phylogeny covering ~90% of the angiosperm genera of the two countries and comprehensive spatial distribution data. We find that China possesses both higher richness and phylogenetic diversity (PD) for angiosperm genera than the USA. Notably, most lineages contribute to the PD anomaly between the two floras, with 46 of 58 lineages having higher PD in China. Temporally, China has a higher proportion of genera that originated before the Miocene than are found in the USA (29.9% vs 23.2%). The eastern USA has more genera that originated during the Paleogene than does the western USA, but the reverse pattern is observed after the middle Miocene, with more genera originating in the west. Spatially, China shows a more distinct east-west deviation in diversity than the USA with eastern China possessing much higher generic richness and PD and more ancient lineages than western China. However, the eastern USA possesses lower generic richness, but higher PD and more ancient lineages than the western USA. Both the floras in China and the USA share a signature of an older east and a younger west, and this pattern may be largely driven by regional orogenic activities and climatic changes in the west of the two regions. Finally, our study indicates that more efforts are needed to enhance biodiversity conservation in southern China and the eastern USA by identifying and protecting phylogenetic diversity hotspots.</p>
Supplementary material 1 from: Roques A, Copeland RS, Soldati L, Denux O, Auger-Rozenberg M-A (2016) Megastigmus seed chalcids (Hymenoptera, Torymidae) radiated much more on Angiosperms than previously considered. I- Description of 8 new species from Kenya, with a key to the females of Eastern and Southern Africa. ZooKeys 585: 51-124. https://doi.org/10.3897/zookeys.585.7503
Sampling details on specimens used in the genetic study : Explanation note: Collection data for the specimens used in the genetic study:
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