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41 results for “Dalbergia”
The Natural History Museum's collection of Dalbergia, Pterocarpus and the Phaseolinae subtribe
<p>In 2018 the Natural History Museum (NHMUK, herbarium code: BM) undertook a pilot digitisation project together with the Royal Botanic Gardens Kew (project Lead) and the Royal Botanic Garden Edinburgh to collectively digitise non-type herbarium material of the subtribe <em>Phaseolinae</em> and the genera <em>Dalbergia </em>L.f. and <em>Pterocarpus</em> Jacq. (rosewoods and padauk), all from the economically important family of legumes (<em>Leguminosae</em> or <em>Fabaceae</em>). </p> <p>These taxonomic groups were chosen for two case studies using the herbarium collections to support the aims of the UK’s Department for Environment Food & Rural Affairs (DEFRA)-allocated, Official Development Assistance (ODA) funding: study 1 - to support the development of dry beans as a sustainable and resilient crop; study 2 - to aid conservation and sustainable use of rosewoods and padauk.</p> <p>We present the images and metadata for 11,222 NHMUK specimens. This includes label transcription and georeferencing, along with summary data on geographic, taxonomic, collector and temporal coverage. We also provide timings and the methodology for our transcription and georeferencing protocols. Approximately 35% of specimens digitised were collected in ODA-listed countries, in tropical Africa, but also in south east Asia and South America.</p>
The Natural History Museum's collection of Dalbergia, Pterocarpus and the Phaseolinae subtribe
<p>In 2018 the Natural History Museum (NHMUK, herbarium code: BM) undertook a pilot digitisation project together with the Royal Botanic Gardens Kew (project Lead) and the Royal Botanic Garden Edinburgh to collectively digitise non-type herbarium material of the subtribe <em>Phaseolinae</em> and the genera <em>Dalbergia </em>L.f. and <em>Pterocarpus</em> Jacq. (rosewoods and padauk), all from the economically important family of legumes (<em>Leguminosae</em> or <em>Fabaceae</em>). </p> <p>These taxonomic groups were chosen for two case studies using the herbarium collections to support the aims of the UK’s Department for Environment Food & Rural Affairs (DEFRA)-allocated, Official Development Assistance (ODA) funding: study 1 - to support the development of dry beans as a sustainable and resilient crop; study 2 - to aid conservation and sustainable use of rosewoods and padauk.</p> <p>We present the images and metadata for 11,222 NHMUK specimens. This includes label transcription and georeferencing, along with summary data on geographic, taxonomic, collector and temporal coverage. We also provide timings and the methodology for our transcription and georeferencing protocols. Approximately 35% of specimens digitised were collected in ODA-listed countries, in tropical Africa, but also in south east Asia and South America.</p>
Taxonomic studies on Malagasy Dalbergia (Fabaceae). III. Two new species from Southeastern Madagascar and an emended description of the rosewood species D. maritima
<p>The Malagasy rosewood species <em>Dalbergia maritima</em> has a long history of unsustainable exploitation for its beautiful, burgundy-colored heartwood. As currently circumscribed, <em>D. maritima</em> has a wide geographic distribution in eastern Madagascar and exhibits significant morphological, ecological, and genetic variation, suggesting it may comprise more than a single entity. Multivariate analyses of leaf, flower, and inflorescence characters as well as eco-geographic features reveal several morphologically well delimited entities with distinct habitat preferences and/or geographic ranges, which are consistent with results from recent phylogenomic and population genomic studies of Malagasy <em>Dalbergia</em>. Based on these findings, we describe and illustrate two new species from southeastern Madagascar comprising material previously assigned to <em>D. maritima</em>, viz. <strong><em>D. pseudomaritima</em></strong>, characterized by paniculate inflorescences and small, broadly elliptic to orbicular, glabrous leaflets, and <strong><em>D. razakamalalae</em></strong>, distinguished by racemose inflorescences with large flowers, and narrowly ovate to narrowly elliptic, glabrous leaflets. <em>Dalbergia maritima</em> is consequently re-circumscribed to include only populations from east-central Madagascar, within which we recognize two subspecies, <em>D. maritima</em> subsp. <em>maritima</em>, with glabrous leaves, inflorescence axes, and gynoecia, occurring in littoral forest habitats, and <strong><em>D. maritima</em> subsp. <em>pubescens</em></strong>, with indument on these structures, and growing in evergreen humid forest farther inland. Photos are provided for each taxon, along with line drawings for the two new species. Provisional IUCN Red List assessments indicate that all three species are Endangered, <em>D. maritima</em> and <em>D. razakamalalae</em> mainly because of selective logging for trade in their high-quality heartwood, and <em>D. pseudomaritima</em> primarily because of habitat degradation due to land clearing and fire for subsistence agriculture, which has important implications for their conservation and sustainable management.</p>
A target capture approach for phylogenomic analyses at multiple evolutionary timescales in rosewoods (Dalbergia spp.) and the legume family (Fabaceae)
<p>Understanding the genetic changes associated with the evolution of biological diversity is of fundamental interest to molecular ecologists. The assessment of genetic variation at hundreds or thousands of unlinked genetic loci forms a sound basis to address questions ranging from micro- to macro-evolutionary timescales, and is now possible thanks to advances in sequencing technology. Major difficulties are associated with i) the lack of genomic resources for many taxa, especially from tropical biodiversity hotspots, ii) scaling the numbers of individuals analyzed and loci sequenced, and iii) building tools for reproducible bioinformatic analyses of such datasets. To address these challenges, we developed a set of target capture probes for phylogenomic studies of the highly diverse, pantropically distributed and economically significant rosewoods (<em>Dalbergia</em> spp.), explored the performance of an overlapping probe set for target capture across the legume family (Fabaceae), and built a general-purpose bioinformatics pipeline. Phylogenomic analyses of <em>Dalbergia</em> species from Madagascar yielded highly resolved and well supported hypotheses of evolutionary relationships. Population genomic analyses identified differences between closely related species and revealed the existence of a potentially new species, suggesting that the diversity of Malagasy <em>Dalbergia</em> species has been underestimated. Analyses at the family level corroborated previous findings by the recovery of monophyletic subfamilies and many well-known clades, as well as high levels of gene tree discordance, especially near the root of the family. The new genomic and bioinformatics resources will hopefully advance systematics and ecological genetics research in legumes, and promote conservation of the highly diverse and endangered <em>Dalbergia</em> rosewoods.</p>
Fig. 1 in Taxonomic studies on Malagasy Dalbergia (Fabaceae). II. A new name for D. mollis and the reinstatement of D. chermezonii
Fig. 1. – Variation in shape and size of leaflets. Dalbergia bemarivensis Phillipson & N. Wilding: A–D. Upper surface; E. Lower surface. Dalbergia chermezonii R. Vig.: F–I. Upper surface; J. Lower surface.
Fig. 2 in Taxonomic studies on Malagasy Dalbergia (Fabaceae). II. A new name for D. mollis and the reinstatement of D. chermezonii
Fig. 2. –Dalbergia bemarivensis Phillipson & N. Wilding: A. Young leafy fruiting branch; B. Leafy branch with mature fruit,
Fig. 4 in Taxonomic studies on Malagasy Dalbergia (Fabaceae). I. Two new species from northern Madagascar, and an emended description for D. manongarivensis
Fig. 4. – Dalbergia manongarivensis Bosser & R. Rabev. A. Flowering branch; B. Fruiting branch; C. Young inflorescence; D. Flower; E. Fruit;
Fig. 3 in Taxonomic studies on Malagasy Dalbergia (Fabaceae). I. Two new species from northern Madagascar, and an emended description for D. manongarivensis
Fig. 3. – Dalbergia antsirananae Phillipson, Crameri & N. Wilding. A. Flowering branch; B. Fruiting branch; C. Part of young inflorescence; D. Leaflet (lower surface); E. Flower; F. Fruit; G: Calyx (split open and flattened) inner surface (left) and outer surface (right); H. Standard petal (adaxial surface); I. Wing petal (adaxial surface); J. Keel petal (adaxial surface); K. Androecium (split open to show
Fig. 2 in Taxonomic studies on Malagasy Dalbergia (Fabaceae). I. Two new species from northern Madagascar, and an emended description for D. manongarivensis
Fig. 2. – Dalbergia antsirananae Phillipson, Crameri & N. Wilding. A. Flowering branch; B. Fruiting branch; C: Leafy branch from coppice shoot, showing underside of leaves with distinctive pale brown indument on the laminae, contrasting with leaves on fertile branches; D: Bole of large felled tree (foreground) and large standing tree (background).
Fig. 8. – Dalbergia sambavensis N in Taxonomic studies on Malagasy Dalbergia (Fabaceae). V. Eight new large tree species and notes on related Malagasy species
Fig. 8. – Dalbergia sambavensis N. Wilding, Phillipson & Crameri. A. Flowering branch; B, C. Portions of leaf rachis with leaflets (b: lower surface; c: upper surface); D. Inflorescence branch; E. Flower; F. Calyx (outer surface, split open and flattened); G. Standard petal (adaxial surface); H. Wing petal (adaxial surface); I. Keel petal (adaxial surface); J. Androecium (adaxial surface, flattened); K. Gynoecium.
Fig. 5. – Dalbergia oronjiae N in Taxonomic studies on Malagasy Dalbergia (Fabaceae). V. Eight new large tree species and notes on related Malagasy species
Fig. 5. – Dalbergia oronjiae N. Wilding, Phillipson & Crameri. A. Flowering branch; B. Portion of leaf rachis with leaflets (lower surface); C. Fruiting branch; D. Mature fruit; E. Calyx (outer surface, split open and flattened); F. Standard petal (adaxial surface);
Fig. 2. – Dalbergia bosseri N in Taxonomic studies on Malagasy Dalbergia (Fabaceae). V. Eight new large tree species and notes on related Malagasy species
Fig. 2. – Dalbergia bosseri N. Wilding, Phillipson & Crameri. A. Fruiting branch; B, C. Portions of leaf rachis with leaflets (b: dried leaf, upper surface, the upper leaflet turned to show its lower surface; c: living leaf, lower surface, the upper leaflet turned to show its upper surface); D. Immature fruit. [Hassold et al. 711, P] [Drawings: R.L. Andriamiarisoa]
Fig. 1 in Taxonomic studies on Malagasy Dalbergia (Fabaceae). V. Eight new large tree species and notes on related Malagasy species
Fig. 1. – Approximate distribution ranges of the eight new large tree species of Malagasy Dalbergia, covering all known extant and historic collections of these species. Black borders represent regions of Madagascar, and are labeled where relevant. Elevation classes are indicated as shades of grey. A. Three new species restricted to the northern part of Madagascar; B. Three new species with disjunct distributions in northern and/or western Madagascar, and two new species with restricted distribution ranges in eastern Madagascar. The range of D. monticola Bosser & R. Rabev. was added to emphasize that it is not known to co-occur with the similar and closely related species D. sambavensis N. Wilding, Phillipson & Crameri and D. soafarae N. Wilding, Phillipson & Crameri.
Fig. 9. – Dalbergia soafarae N in Taxonomic studies on Malagasy Dalbergia (Fabaceae). V. Eight new large tree species and notes on related Malagasy species
Fig. 9. – Dalbergia soafarae N. Wilding, Phillipson & Crameri. A. Fruiting branch; B, C. Leaflets (b: upper surface; c: lower surface); D. Flower; E. Immature fruit; F. Calyx (outer surface, split open and flattened); G. Standard petal (adaxial surface); H. Wing petal (adaxial surface); I. Keel petal (adaxial surface); J. Androecium (adaxial surface, flattened); K. Gynoecium.
Fig. 4. – Dalbergia leandrii N in Taxonomic studies on Malagasy Dalbergia (Fabaceae). V. Eight new large tree species and notes on related Malagasy species
Fig. 4. – Dalbergia leandrii N. Wilding, Phillipson & Crameri. A. Flowering branch; B, C. Leaflets (b: upper surface; c: lower surface); D. Mature fruit; E. Flower; F. Calyx (outer surface, split open and flattened); G. Standard petal (adaxial surface);
Fig. 7 in Taxonomic studies on Malagasy Dalbergia (Fabaceae). V. Eight new large tree species and notes on related Malagasy species
Fig. 7. – Dalbergia rakotovaoi Phillipson, N. Wilding & Crameri. A. Mature fruit; B. Fruiting branch; C. Leaflet upper surface; D. Leaflet lower surface; E. Inflorescence with immature fruits; F. Flower; G. Androecium (adaxial surface, flattened); H. Gynoecium; I. Standard petal (adaxial surface); J. Wing petal (adaxial surface); K. Keel petal (adaxial surface); L. Calyx (outer surface, split open and flattened).
Taxonomic studies on Malagasy Dalbergia (Fabaceae). III. Two new species from Southeastern Madagascar and an emended description of the rosewood species D. maritima
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A target capture approach for phylogenomic analyses at multiple evolutionary timescales in rosewoods (Dalbergia spp.) and the legume family (Fabaceae)
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Dalbergia cf. frutescens (Vell.) Britton from Colombia collected by E. Álvarez, A. Camargo, F. Toro #3875
<p><strong>File Name</strong>: <span>TOLI-25768-ZAR-05-Sot-Reb-EAD-3875.jpg</span></p> <p><strong>CÓDIGO FOTO</strong>: <span>TOLI-25768-ZAR-05-Sot-Reb-EAD-3875-</span></p> <p><strong>Fotografía</strong>: <span>SI</span></p> <p><strong>Nº TOLI</strong>: <span>TOLI-25768</span></p> <p><strong>PARCELA</strong>: <span>ZAR-05</span></p> <p><strong>CÓDIGO</strong>: <span>Sot-Reb-EAD-3875</span></p> <p><strong>Nº COLECTA</strong>: <span>3875</span></p> <p><strong>NUEVOS COLECTORES</strong>: <span>Alejandro Camargo, Felipe Toro & Esteban Alvarez</span></p> <p><strong>COLECTORES</strong>: <span>E. Álvarez, A. Camargo, F. Toro</span></p> <p><strong>Nº MUESTRAS MONTADAS</strong>: <span>1</span></p> <p><strong>Homologación</strong>: <span>Homologado</span></p> <p><strong>Nueva fecha del evento </strong>: <span>30/11/2018.</span></p> <p><strong>Fecha del evento</strong>: <span>27/04/2019.</span></p> <p><strong>Proyecto </strong>: <span>Recursos Botánicos Disponibles en Línea (BRAVO) para la flora Colombiana</span></p> <p><strong>Continente</strong>: <span>SA</span></p> <p><strong>Pais</strong>: <span>Colombia</span></p> <p><strong>Estado/Provincia</strong>: <span>Amazonas</span></p> <p><strong>Municipio</strong>: <span>Leticia</span></p> <p><strong>Localidad</strong>: <span>Resguardo Indígena Ticuna-Huitoto Km 6-11.</span></p> <p><strong>Elevación minima en metros</strong>: <span>200</span></p> <p><strong>Elevación maxima en metros</strong>: <span>300</span></p> <p><strong>Latitud</strong>: <span>-4.004</span></p> <p><strong>Longitud original</strong>: <span>-69.896</span></p> <p><strong>datum geodésico</strong>: <span>WGS 84</span></p> <p><strong>Latitud decimal</strong>: <span>-4.004</span></p> <p><strong>Longitud decimal</strong>: <span>-69.896</span></p> <p><strong>Identificado por</strong>: <span>William Ariza</span></p> <p><strong>Fecha de identificación</strong>: <span>23/01/2019.</span></p> <p><strong>Familia antigua</strong>: <span>Fabaceae</span></p> <p><strong>Especie antigua</strong>: <span>Dalbergia monetaria L. f.</span></p> <p><strong>Nombre cientifico</strong>: <span>Dalbergia cf. frutescens (Vell.) Britton</span></p> <p><strong>Reino</strong>: <span>Plantae</span></p> <p><strong>Filo</strong>: <span>Magnoliophyta</span></p> <p><strong>Clase</strong>: <span>Equisetopsida</span></p> <p><strong>Orden</strong>: <span>Fabales</span></p> <p><strong>Familia nueva</strong>: <span>Fabaceae</span></p> <p><strong>Género nuevo</strong>: <span>Dalbergia</span></p> <p><strong>especie nueva</strong>: <span>frutescens</span></p> <p><strong>Autoría del nombre científico</strong>: <span>(Vell.) Britton</span></p> <p><strong></strong>: <span>Fabaceae</span></p> <p><strong>genero herbario</strong>: <span>Dalbergia</span></p> <p><strong>especie herbario</strong>: <span>frutescens</span></p> <p><strong>Especie de herbario para TNRS</strong>: <span>Dalbergia frutescens</span></p> <p><strong>Especie corregida herbario y desde TNRS</strong>: <span>Dalbergia frutescens</span></p> <p><strong>Familia corregida desde TNRS</strong>: <span>Fabaceae</span></p> <p><strong></strong>: <span>4771</span></p>
Fig. 1 in Taxonomic studies on Malagasy Dalbergia (Fabaceae). I. Two new species from northern Madagascar, and an emended description for D. manongarivensis
Fig. 1. – Map showing the approximate distribution ranges
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