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262 results for “Aquilegia”
Aquilegia formosa (Ranunculaceae) - whole plant - in flower - general view
Image of Aquilegia formosa (Ranunculaceae) - whole plant - in flower - general view
Aquilegia formosa (Ranunculaceae) - whole plant - in flower - general view
Image of Aquilegia formosa (Ranunculaceae) - whole plant - in flower - general view
Image 4 in New floral distribution records of Aquilegia nivalis (Baker) Falc. ex B.D. Jacks and Doronicum falconeri C.B. Clarke ex Hook. f. from the Valley of Flowers National Park, Uttarakhand, India
Image 4. Herbarium of Doronicum falconeri
Image 2 in New floral distribution records of Aquilegia nivalis (Baker) Falc. ex B.D. Jacks and Doronicum falconeri C.B. Clarke ex Hook. f. from the Valley of Flowers National Park, Uttarakhand, India
Image 2. Aquilegia nivalis
Supporting information for: The correct name for an Aquilegia (Ranunculaceae) hybrid of the parentage Aquilegia flavescens × A. formosa
<p><span><em>Aquilegia</em> </span><span>x</span><span> <em>miniana</em></span><span> (J.F.Macbr. & Payson) Cronk, hybr. & stat. nov. is the correct name for the hybrid <em>Aquilegia</em> <em>flavescens</em> S.Watson x <em>A</em>. <em>formosa</em> Fisch. ex DC. var. <em>formosa</em>. In 1916, Payson and Macbride, while exploring the mountains of Idaho, found populations of <em>Aquilegia</em> that were pink in flower colour and appeared intermediate between the yellow-flowered <em>A</em>. <em>flavescens</em> and red-flowered <em>A. formosa</em>. They named these plants <em>A. flavescens</em> var. <em>miniana</em> J.F.Macbr. & Payson. There has been uncertainty over whether their type collections (in GH, RM, MO, US, E, CM, CAS, NY) do indeed represent hybrids or pink-flowered morphs of <em>A. flavescens</em>. Using a Wells diagram, the holotype (in the Gray Herbarium of Harvard University) is shown to be intermediate, allowing its identification as a clear hybrid. However, some of the isotype material is indistinguishable from <em>A. flavescens</em>. The holotype matches material from British Columbia that has been determined as being of hybrid origin using molecular and morphological data. <em>A. flavescens</em> var. <em>miniana</em> J.F.Macbr. & Payson is, therefore, an available name for the hybrid, which is here raised to the status of hybrid binomial.</span></p>
The past, present, and future of ecogeographic isolation between closely related Aquilegia plants
<p>Quantifying the strength of the ecogeographic barrier is an important aspect of studies of plant speciation and a practical step to understanding the evolutionary trajectory of plants under climate change. Here, we quantified the extent of ecogeographical isolation of four closely related Aquilegia species, which radiated in the Mountains of SW China and adjacent regions and often lacked intrinsic barriers. We predicted past, present and future species potential distributions using environmental niche models, then compared them to determine the degree of overlap and ecogeographic isolation. Investigated ecogeographical isolation between species pairs, we found significant ecological differentiation in all studied species pairs except A. kansuensis and A. ecalacarata. The current strengths of ecogeographic isolation are above 0.5 in most cases. Compared with current climates, most species had an expanding range in the Last Glacial Maximum, the Mid Holocene and under four future climate scenarios. Our results suggested that ecogeographic isolation contributes to the diversification and maintenance of Aquilegia species in the Mountains of northern and SW China and would act as an essential reproductive barrier in the future.</p>
The floral volatiles of Aquilegia coerulea for three populations grown at two water and temperature regimes, together with day and evening emission
<p><em>Premise of the study</em>: Shifts in abiotic factors can affect many plant traits, including floral volatiles. This study examines the response of floral volatiles to water availability, and whether phenotypic plasticity to water differs among populations. Furthermore, it investigates genetic differentiation in floral volatiles, determines the effect of temperature on phenotypic plasticity to water, and assesses temporal variation in floral scent emission between day and evening, since pollinator visitation differs at those times.</p> <p><em>Methods</em>:<em> </em>Rocky Mountain columbine plants (<em>Aquilegia coerulea</em>), started from seeds collected in three wild populations in Colorado, Utah, and Arizona, were grown under two water treatments in a greenhouse in Madison, Wisconsin, USA. One population was also grown under the two water treatments, at two temperatures. Air samples were collected from enclosed flowers using dynamic headspace methods and floral volatiles were identified and quantified by gas chromatography (GC) with mass spectrometry (MS) detection.</p> <p><em>Key Results</em>: Emission of three floral volatiles increased in the wetter environment, indicating phenotypic plasticity. The response of six floral volatiles to water differed among populations, suggesting genetic differentiation in phenotypic plasticity. Five floral volatiles varied among populations, and emission of most floral volatiles was greater during the day.</p> <p><em>Conclusions</em>: Phenotypic plasticity to water permits a quick response of floral volatiles in changing environments. The genetic differentiation in phenotypic plasticity suggests that phenotypic plasticity can evolve but complicates predictions of the effects of environmental changes on a plant and its pollinators.</p>
The floral volatiles of Aquilegia coerulea for three populations grown at two water and temperature regimes, together with day and evening emission
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Supporting information for: The correct name for an Aquilegia (Ranunculaceae) hybrid of the parentage Aquilegia flavescens × A. formosa
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The past, present, and future of ecogeographic isolation between closely related Aquilegia plants
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Cedar Creek Ecosystem Science Reserve site, station Old Field 32 at Cedar Creek, study of plant cover of Aquilegia canadensis in units of percent on a yearly timescale
The EcoTrends project was established in 2004 by Dr. Debra Peters (Jornada Basin LTER, USDA-ARS Jornada Experimental Range) and Dr. Ariel Lugo (Luquillo LTER, USDA-FS Luquillo Experimental Forest) to support the collection and analysis of long-term ecological datasets. The project is a large synthesis effort focused on improving the accessibility and use of long-term data. At present, there are ~50 state and federally funded research sites that are participating and contributing to the EcoTrends project, including all 26 Long-Term Ecological Research (LTER) sites and sites funded by the USDA Agriculture Research Service (ARS), USDA Forest Service, US Department of Energy, US Geological Survey (USGS) and numerous universities. Data from the EcoTrends project are available through an exploratory web portal (http://www.ecotrends.info). This web portal enables the continuation of data compilation and accessibility by users through an interactive web application. Ongoing data compilation is updated through both manual and automatic processing as part of the LTER Provenance Aware Synthesis Tracking Architecture (PASTA). The web portal is a collaboration between the Jornada LTER and the LTER Network Office. The following dataset from Cedar Creek Ecosystem Science Reserve (CDR) contains plant cover of Aquilegia canadensis measurements in percent units and were aggregated to a yearly timescale.
FIGURE 6 in Aquilegia yangii (Ranunculaceae), a new species from western China
FIGURE 6. Flowers in three species of Aquilegia. A. A. kansuensis (photographed by B. Liu). B. A. yangii (photographed by B. Liu). C. A. oxysepala (photographed by D. Yakubov). Insets: flowers with the sepals and petals removed.
FIGURE 3 in Aquilegia yangii (Ranunculaceae), a new species from western China
FIGURE 3. Line illustration of Aquilegia yangii. A. Inflorescence. B. Flower. C. Sepal (abaxial side). D. Petal. E. Stamens. F. Pistils. G. Staminodium. H. Follicles.
FIGURE 2 in Aquilegia yangii (Ranunculaceae), a new species from western China
FIGURE 2. Aquilegia yangii in the wild (photographed by Y. Luo in Jiuzhaigou, Sichuan, China). A. Habitat and habit. B. Portion of inflorescence with flowers and young follicles. C. Basal leaf. D. Flower. E. Sepals (S) and petals (P). F. Stamens (St), staminodia (Sta) and pistils (Pi). G. Follicles.
FIGURE 5 in Aquilegia yangii (Ranunculaceae), a new species from western China
FIGURE 5. SEM micrographs of seed surface in three species of Aquilegia. A, B. A. yangii. C, D. A. kansuensis. E, F. A. oxysepala. Scale bars: 100 μm (A, C, E) or 10 μm (B, D, F).
FIGURE 9 in Two new species and four new records of Aquilegia (Ranunculaceae) from China
FIGURE 9. Distribution map of Aquilegia xinjiangensis (stars), A. hebeica (triangles), A. amurensis (squares), A. flabellata (asterisks), A. kamelinii (circle), A. vicaria (inverse triangle).
FIGURE 6 in Two new species and four new records of Aquilegia (Ranunculaceae) from China
FIGURE 6. Aquilegia hebeica: A) General view, B) Sepal, C) Petal, D) Follicles, E) Flowers; F) Aquilegia viridiflora, flower, G) Aquilegia kamelinii, flower. Scale bars: 1 cm.
FIGURE 4 in Two new species and four new records of Aquilegia (Ranunculaceae) from China
FIGURE 4. SEM micrographs of seed surface (600×): A) Aquilegia xinjiangensis, B) A. glandulosa, C) A. jucunda, D) A. ochotensis, E) A. transsilvanica, F) A. hebeica, G) A. viridiflora, H) A. kamelinii, I) A. oxysepala, J) A. sibirica, K) A. parviflora, L) A. amurensis.
FIGURE 7 in Two new species and four new records of Aquilegia (Ranunculaceae) from China
FIGURE 7. SEM micrographs of seed surface (600×): A) Aquilegia ecalcarata, B) A. semicalcarata, C) A. rockii, D) A. yabeana, E) A. kansuensis, F) A. ganboldii, G) A. atrovinosa, H) A. lactiflora, I) A. moorcroftiana, J) A. flabellata, K) A. vicaria, L) A.incurvata.
FIGURE 3 in Two new species and four new records of Aquilegia (Ranunculaceae) from China
FIGURE 3. Flowers (at different scales): A) Aquilegia xinjiangensis (photo by Liu Bing), B) A. glandulosa (A.S. Erst), C) A. viridiflora (I. Khan), D) A. kamelinii (T. Stupnikova), E–F) A. hebeica (Xu Yechun, Liu Bing), G) A. oxysepala (D. Yakubov), H) A. sibirica (A.S. Erst), I–J) A. parviflora (D. Yakubov), K) A. amurensis (D. Yakubov).
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