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16 results for “Gomphrena”
Herbarium specimen image of Gomphrena celosioides C.F.P.Mart., part of the collection of Royal Botanic Gardens, Kew
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.<br>- A lossless TIFF image from which the JPEG image has been derived.
Disentangling the taxonomic variations within the high-Andean complex Gomphrena meyeniana (Gomphrenoideae, Amaranthaceae)
<p>Gomphrena meyeniana is an extremely variable species from the Andean highlands, which has attracted the attention of many botanists because it is the world's highest-elevation C4 eudicot and because of its wide morphological variability. It has the typical high-Andean plant morphology, with small leaves tightly clustered on a thick rootstock. The large range of morphological variation within this species, coupled with the varying opinions on the existence of several species or infra-specific taxa, and the lack of molecular information has made the clarification of the G. meyeniana complex a challenge. Our approach was to perform a broad spectrum molecular sampling to identify its phylogenetic position within Gomphrena genus and to perform a multivariate analysis to objectively differentiate taxa based on morphological characters. The ITS and trnL-F regions were analyzed individually and combined using Bayesian inference and maximum parsimony methods. To analyze the morphological characters we performed a clustering method (partitioning around medoids with the Gower's dissimilarity algorithm). The molecular analyses supported the monophyly of the G. meyeniana complex but did not support segregation into varieties. The morphological analyses gathered the infra-specific taxa into only three varieties that can be easily distinguished through three simple characters: the presence of leaves on the flowering shoot, the habit of the flowering shoot, and the pilosity of the tepals. The varieties of G. meyeniana accepted here are var. meyeniana, var. caulescens, and var. flaccida. A dichotomous key to identify the infra-specific taxa is here presented and illustrated. The varieties tucumanensis, and conwayi were synonymized with var. caulescens, and var. meyeniana respectively.</p>
Disentangling the taxonomic variations within the high-Andean complex Gomphrena meyeniana (Gomphrenoideae, Amaranthaceae)
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FIGURE 2 in Identities of some names in Gomphrena (Amaranthaceae)
FIGURE 2. Lectotype of Gomphrena decumbens var. nana (Z000000292 by United Herbaria Z+ZT / CC BY 4.0).
FIGURE 6 in Identities of some names in Gomphrena (Amaranthaceae)
FIGURE 6. Specimen collected by Gillies in Mendoza (E00334749).
FIGURE 7 in Identities of some names in Gomphrena (Amaranthaceae)
FIGURE 7. Specimen collected by Berlandier (no. 2228) in Mexico (PH00012667).
FIGURE 8 in Identities of some names in Gomphrena (Amaranthaceae)
FIGURE 8. Lectotype of Gomphrena pringlei (US00102801).
FIGURE 5 in Identities of some names in Gomphrena (Amaranthaceae)
FIGURE 5. Specimen of Gomphrena palmeri (US00102797).
FIGURE 4 in Identities of some names in Gomphrena (Amaranthaceae)
FIGURE 4. Lectotype of Gomphrena globosa var. albiflora (P00622632).
FIGURE 3 in Identities of some names in Gomphrena (Amaranthaceae)
FIGURE 3. Lectotype of Gomphrena nitida (US00102795).
FIGURE 1 in Identities of some names in Gomphrena (Amaranthaceae)
FIGURE 1. Lectotype of Gomphrena filaginoides (BR0000006950835).
FIGURE 3 in Typification and nomenclatural notes on twenty-seven names of Gomphrena L. (Amaranthaceae) linked to the South American flora
FIGURE 3. Lectotype of the name Gomphrena perennis fo. parvifolia (GOET-015488!).
FIGURE 2 in Typification and nomenclatural notes on twenty-seven names of Gomphrena L. (Amaranthaceae) linked to the South American flora
FIGURE 2. Isolectotype of the name Gomphrena graminea (G- 00478884!)
FIGURE 1 in Typification and nomenclatural notes on twenty-seven names of Gomphrena L. (Amaranthaceae) linked to the South American flora
FIGURE 1. Lectotype of the name Gomphrena elegans var. claussenioides (GOET-015489!).
FIGURE 4 in Typification and nomenclatural notes on twenty-seven names of Gomphrena L. (Amaranthaceae) linked to the South American flora
FIGURE 4. Lectotype of the name Gomphrena regeliana (LE!).
FIGURE 1 in Revised typification of Gomphrena argentina (Amaranthaceae s. str.)
FIGURE 1. Lectotype of Gomphrena argentina (M0241752! [digital photograph!]).
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OpenNeuro
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