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7 results for “Polysiphonia”
Herbarium specimen image of Polysiphonia crassicollis Børgesen, part of the collection of Natural History Museum London
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.
Herbarium specimen image of Polysiphonia strictissima Hook.f. & Harv., part of the collection of Natural History Museum London
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.<br>- Two PNG files containing segmented image overlays of the scanned herbarium sheet. The _all extension indicates that all labels, color charts and pieces of text have received a different color against a black background color. The _sel extension indicates that these elements are white if they're barcode labels, yellow if they're color charts and red if they're anything else.
Herbarium specimen image of Polysiphonia fucoides (Hudson) Greville, part of the collection of Royal Botanic Garden Edinburgh
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.
Herbarium specimen image of Polysiphonia brodiei (Dillwyn) Sprengel, part of the collection of Royal Botanic Garden Edinburgh
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.
Herbarium specimen image of Polysiphonia fibrillosa (Dillwyn) Sprengel, part of the collection of National Museum of Natural History, Paris
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.
FIGURE 1 in The phylogenetic position of Polysiphonia scopulorum (Rhodomelaceae, Rhodophyta) based on molecular analyses and morphological observations of specimens from the type locality in Western Australia
FIGURE 1. Phylogenetic tree of the genus Polysiphonia sensu lato and outgroup taxon estimated with Maximum Likelihood (RAxML) analysis of rbcL sequences. Samples in bold type represent our data collected from Rottnest Island, Western Australia, while samples in plain type were downloaded from GenBank. Values at nodes indicate ML bootstrap support (BP) and the scale indicates substitutions per site.
FIGURE 2. Polysiphonia scopulorum Harvey. A in The phylogenetic position of Polysiphonia scopulorum (Rhodomelaceae, Rhodophyta) based on molecular analyses and morphological observations of specimens from the type locality in Western Australia
FIGURE 2. Polysiphonia scopulorum Harvey. A: Tetrasporophyte (Rottnest Island, Australia; 11 November 2015); B & C: Prostrate axes and numerous erect axes; D: Unicellular rhizoid in open connection (arrowhead) with a pericentral cell and apex of prostrate axes (arrow); E: Unicellular rhizoid in open connection (arrowhead) with pericentral cell and erect axes (arrow); F: Irregular branching pattern; G: Scar cells on erect axes; H: Cross-section of erect axes; I: Discoid rhodoplasts in pericentral cells; J: Apical cell (arrowhead) and endogenous branching (arrows) in erect axes; K–M: Apical cell (arrowhead) and exogenous branching (arrows) in erect axes; N: Apex of erect axes (arrowhead: apical cell); O & P: Trichoblast; Q: Adventitious branch (arrowhead); R: Tetrahedrally divided tetrasporangia; S: Tetrasporangia (arrowheads) and trichoblast or scar cells (arrows); T: Cross-section of tetrasporangial branch (arrowheads: pericentral cells, arrows: presporangial cover cells, t: tetrasporangium, cc: central cell); U: Slightly spiral arrangement of tetrasporangial series (Scale bars: A = 5 mm, B, C, F = 500 μm; D, E, H, I, Q, R, S, T = 50 μm; G, P, U = 100 μm; J–M = 20 μm; N = 30 μm; O = 200 μm).
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