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34 results for “Isoetaceae”
FIGURE 1 in The Isoetes longissima complex (Isoetaceae) in Italy: observations on the morphology of spores and leaves, and taxonomic implications
FIGURE 1. SEM images of megaspores and microspores of the examined taxa, taken from herbarium specimens (see Table 2). First column: proximal view of megaspores; second column: distal view of megaspores; third column: microspores. First line = Isoetes longissima (A, B, C); second line: I. velata (D, E, F); third line: I. sicula (G, H, I); fourth line: I. tiguliana (J, K, L); fifth line: I. dubia (M, N, O). For names of taxa see also Introduction.
FIGURE 2 in Description, distribution and ecology of endemic Tasmanian quillwort, Isoetes jarmaniae, sp. nov. (Isoetaceae; Lycopodiopsida)
FIGURE 2. Isoetes jarmaniae habitat; 2A: peat-bound karstic wetland in a landscape dominated by buttongrass (Gymnoshoenus sphaerocephalus) moorland, Giblin River valley (1979); 2B: peat-bound karstic wetland, surrounded by tall wet scrub, with outcropping dolomite, Maxwell River valley (1984) (Photos: J. Jarman)
FIGURE 4 in Description, distribution and ecology of endemic Tasmanian quillwort, Isoetes jarmaniae, sp. nov. (Isoetaceae; Lycopodiopsida)
FIGURE 4. Cross-section of Isoetes jarmaniae leaves at mid-point, showing narrow internal partitions, small central vascular bundle and large air channels; 4A: terete leaf section (de Salas 2005, Giblin River valley, March 2018, DFB); 4B: flattened (adaxially folded) leaf section (de Salas 1903, December 2017, DFB). (Photo interpretation: D. F. Brunton)
FIGURE 6 in Description, distribution and ecology of endemic Tasmanian quillwort, Isoetes jarmaniae, sp. nov. (Isoetaceae; Lycopodiopsida)
FIGURE 6. Isoetes jarmaniae spores; 3A: megaspore proximal view, with congested ornamentation and slightly triangular shape; 3B: megaspore lateral view, rugulate-cristate ornamentation and papillae in patches on distal side of alate (winged) equatorial ridge; 3C: megaspore distal view, with congested ornamentation pattern of anastomosing, rugulate-cristate, thick-walled muri and with fewer standalone columnar muri; 3D: megaspore distal view, with alternative congested pattern of tall, predominantly columnar muri and a relatively wide (5−9% width of megaspore body), thin, alate equatorial band; note three microspores to left; 3E: plump, blunt-ended microspore with low, obscure dorsal ridge; 3F: detail of densely fine papillate microspore ornamentation. Megaspore scale bar (3A–D) = 100 µm. (3A: Garrett s.n. Giblin River valley, February 1994 (SEM image: D. M. Britton, 1994); 3B & 3C: Jarman s.n., near Lancelot Hill, Maxwell River valley, April 1985 (SEM images: P.C. Sokoloff, June 2021); 3D & 3E: de Salas 2005, Pass Hill, Giblin River valley, March 2018 (SEM images: P.C. Sokoloff, June 2021); 3F: Jarman s.n., near Lancelot Hill, Maxwell River valley, April 1985 (SEM images: P.C. Sokoloff, June 2021))
FIGURE 5 in Description, distribution and ecology of endemic Tasmanian quillwort, Isoetes jarmaniae, sp. nov. (Isoetaceae; Lycopodiopsida)
FIGURE 5. Inner leaf base of Isoetes jarmaniae showing complete fenestra (no velum coverage) of the sporangium and long, narrow ligule (Jarman s.n., near Lancelot Hill, Maxwell River valley, April 1985, DFB). Scale bar = 1 mm. (Photo: D. F. Brunton)
FIGURE 2 in On the typification of three Isoetes names (Isoetaceae, Lycopodiopsida) described from France
FIGURE 2. Isolectotype of Isoetes delalandei in NTM (accession number MHNN.B.10092.6).
FIGURE 6 in Two new diploid species of Isoetes (Isoetaceae: Lycopodiopsida) from Southeastern China based on morphological and molecular evidence
FIGURE 6. Distribution of Isoetes changleensis (blue) and I. yuhangensis (red) in China.
FIGURE 3 in Two new diploid species of Isoetes (Isoetaceae: Lycopodiopsida) from Southeastern China based on morphological and molecular evidence
FIGURE 3. Chloroplast of Isoetes yuhangensis and I. changleensis.
FIGURE 1 in The genus Isoetes (Isoetaceae): a provisional checklist of the accepted and unresolved taxa
FIGURE 1. Distribution of Isoetes species richness using the Level 2 regions of Brummitt (2001).
FIGURE 3 in The genus Isoetes (Isoetaceae): a provisional checklist of the accepted and unresolved taxa
FIGURE 3. Number of accepted Isoetes taxa described in the last 50 years.
FIGURE 3 in Lectotypification and observations on the morphology, distribution and conservation status of Isoetes luetzelburgii (Isoetaceae)
FIGURE 3. Boxplots of the spore sizes of Isoetes luetzelburgii. A. Megaspore. B. Microspore.
TABLE 2 in Two new diploid species of Isoetes (Isoetaceae: Lycopodiopsida) from Southeastern China based on morphological and molecular evidence
<p><b>TABLE 2.</b> Summary of complete chloroplast genomes for <i>Isoetes changleensis</i> and I. yuhangensis.</p><table><tbody><tr><th>Genome features</th><th>I. changleensis</th><th><i>I. yuhangensis</i></th></tr></tbody><tbody><tr><th>Genome size (bp)</th><td>145,494</td><td>145,501</td></tr><tr><th>GC content (%)</th><td>38</td><td>38</td></tr><tr><th>LSC size (bp)</th><td>91,859</td><td>91,839</td></tr><tr><th>SSC size (bp)</th><td>27,221</td><td>27,225</td></tr><tr><th>IR size (bp)</th><td>26,414</td><td>26,414</td></tr><tr><th>Number of genes</th><td>125</td><td>125</td></tr><tr><th>Protein coding genes</th><td>81</td><td>81</td></tr><tr><th>tRNA genes</th><td>36</td><td>36</td></tr><tr><th>rRNA genes</th><td>8</td><td>8</td></tr></tbody></table>
FIGURE 1 in On the typification of three Isoetes names (Isoetaceae, Lycopodiopsida) described from France
FIGURE 1. Lectotype of Isoetes delalandei (ANG, accession number MBAng.2023.0.12369, plants on the left top of the sheet, on a black paper background); the other plants on the sheet are labelled as a separate specimen (accession number MBAng.2023.0.12370) and are isolectotypes.
FIGURE 1 in Description, distribution and ecology of endemic Tasmanian quillwort, Isoetes jarmaniae, sp. nov. (Isoetaceae; Lycopodiopsida)
FIGURE 1. Isoetes jarmaniae; 1A plants in situ, Maxwell River valley (1979); 1B: excavated plants, Prince Rivulet, Maxwell River valley, December 2017. Scale bar = 2 cm. (Photos: J. Jarman).
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