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354 results for “Viburnum”
Viburnum prunifolium (Caprifoliaceae) - bark - of a medium tree or large branch
Image of Viburnum prunifolium (Caprifoliaceae) - bark - of a medium tree or large branch
Viburnum prunifolium (Caprifoliaceae) - bark - of a large tree
Image of Viburnum prunifolium (Caprifoliaceae) - bark - of a large tree
Viburnum prunifolium (Caprifoliaceae) - fruit - immature
Image of Viburnum prunifolium (Caprifoliaceae) - fruit - immature
Viburnum opulus var. americanum (Caprifoliaceae) - fruit - immature
Image of Viburnum opulus var. americanum (Caprifoliaceae) - fruit - immature
Viburnum opulus var. americanum (Caprifoliaceae) - leaf - margin of upper + lower surface
Image of Viburnum opulus var. americanum (Caprifoliaceae) - leaf - margin of upper + lower surface
Viburnum opulus var. americanum (Caprifoliaceae) - leaf - showing orientation on twig
Image of Viburnum opulus var. americanum (Caprifoliaceae) - leaf - showing orientation on twig
Viburnum opulus var. americanum (Caprifoliaceae) - whole tree (or vine) - general
Image of Viburnum opulus var. americanum (Caprifoliaceae) - whole tree (or vine) - general
Viburnum opulus var. americanum (Caprifoliaceae) - leaf - whole upper surface
Image of Viburnum opulus var. americanum (Caprifoliaceae) - leaf - whole upper surface
Viburnum prunifolium (Caprifoliaceae) - twig - orientation of petioles
Image of Viburnum prunifolium (Caprifoliaceae) - twig - orientation of petioles
Viburnum prunifolium (Caprifoliaceae) - leaf - showing orientation on twig
Image of Viburnum prunifolium (Caprifoliaceae) - leaf - showing orientation on twig
Viburnum prunifolium (Caprifoliaceae) - leaf - whole upper surface
Image of Viburnum prunifolium (Caprifoliaceae) - leaf - whole upper surface
Viburnum prunifolium (Caprifoliaceae) - fruit - as borne on the plant
Image of Viburnum prunifolium (Caprifoliaceae) - fruit - as borne on the plant
Viburnum prunifolium (Caprifoliaceae) - whole tree (or vine) - general
Image of Viburnum prunifolium (Caprifoliaceae) - whole tree (or vine) - general
Data from: Caught in the act: Incipient speciation at the southern limit of Viburnum in the Central Andes
<p>A fundamental objective of evolutionary biology is to understand the origin of independently evolving species. Phylogenetic studies of species radiations rarely are able to document ongoing speciation; instead, modes of speciation, entailing geographic separation and/or ecological differentiation, are posited retrospectively. The Oreinotinus clade of <em>Viburnum </em>has radiated recently from north to south through the cloud forests of Mexico and Central America to the Central Andes. Our analyses support a hypothesis of incipient speciation in Oreinotinus at the southern edge of its geographic range, from central Peru to northern Argentina. Although several species and infraspecific taxa of have been recognized in this area, multiple lines of evidence and analytical approaches (including analyses of phylogenetic relationships, genetic structure, leaf morphology, and climatic envelopes) favor the recognition of just a single species, V. seemenii. We show that what has previously been recognized as <em>V. seemenii </em>f. <em>minor </em>has recently occupied the drier Tucuman-Bolivian forest region from Samaipata in Bolivia to Salta in northern Argentina. Plants in these populations form a well-supported clade with a distinctive genetic signature and they have evolved smaller, narrower leaves. We interpret this as the beginning of a within-species divergence process that has elsewhere in the neotropics resulted repeatedly in Viburnum species with a particular set of leaf ecomorphs. Specifically, the southern populations are in the process of evolving the small, glabrous, and entire leaf ecomorph that has evolved in four other montane areas of endemism. As predicted based on our studies of leaf ecomorphs in Chiapas, Mexico, these southern populations experience generally drier conditions, with large diurnal temperature fluctuations. In a central portion of the range of <em>V. seemenii</em>, characterized by wetter climatic conditions, we also document what may be the initial differentiation of the leaf ecomorph with larger, pubescent, and toothy leaves. The emergence of these ecomorphs thus appears to be driven by adaptation to subtly different climatic conditions in separate geographic regions, as opposed to parapatric differentiation along elevational gradients as suggested by Viburnum species distributions in other parts of the neotropics.</p>
Herbarium specimen image of Viburnum lutescens Blume, part of the collection of Naturalis Biodiversity Center
Part of a training dataset of scanned herbarium specimens. The data paper and a summary landing page will be published on Zenodo as it gets published.<br><br>Content of this deposition:<br><br>- A JSON-LD datafile listing the label data associated with this herbarium specimen. The Darwin and Dublin Core data standards are used for most values.<br>- A JPEG image file of the scanned herbarium sheet.
Linked collectors and determiners for: Lectotypification of 4 names of Viburnum (Adoxaceae).
Natural history specimen data linked to collectors and determiners held within, "Lectotypification of 4 names of Viburnum (Adoxaceae)". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/328d9f52-4430-4668-b0a7-8c967008e633">https://bionomia.net/dataset/328d9f52-4430-4668-b0a7-8c967008e633</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/328d9f52-4430-4668-b0a7-8c967008e633">https://gbif.org/dataset/328d9f52-4430-4668-b0a7-8c967008e633</a>. Formatted as a Frictionless Data package.
Viburnum opulus L. (BR0000011869320)
Belgium Herbarium image of <a href="https://www.plantentuinmeise.be">Meise Botanic Garden</a>.
Viburnum opulus L. (BR0000011868491)
Belgium Herbarium image of <a href="https://www.plantentuinmeise.be">Meise Botanic Garden</a>.
Viburnum opulus L. (BR0000011869634)
Belgium Herbarium image of <a href="https://www.plantentuinmeise.be">Meise Botanic Garden</a>.
Viburnum lantana L. (BR0000011868187)
Belgium Herbarium image of <a href="https://www.plantentuinmeise.be">Meise Botanic Garden</a>.
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