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7 results for “Tolypella”
FIGURE 48 in Tolypella mongolica (Charophyceae, Characeae): A new dioecious charophyte species from the center of Eurasia and implications for charophyte taxonomy, including the validation of T. porteri and the new combination for T. jwalae
FIGURE 48. Unrooted ML-tree of Tolypella (model TIM1+G) showing the position of the new species based on ITS rDNA sequence data (14 sequences, 875 aligned positions). Prepared by V.Yu. Nikulin. See Fig. 47 legend for details.
FIGURES 38–46 in Tolypella mongolica (Charophyceae, Characeae): A new dioecious charophyte species from the center of Eurasia and implications for charophyte taxonomy, including the validation of T. porteri and the new combination for T. jwalae
FIGURES 38–46. Oospores of Tolypella mongolica sp. nov., Altai Mountains (LE), general appearance and sparsely coarsely tuberculate surface, scanning electron microscopy: 38–42—general appearance: 38, 41 & 42—lateral view of oospores with different degree of prominence of tubercles; 39 & 40—basal view; 43–46—sparsely coarsely tuberculate surface with different prominence of tubercles. Scale: 38–42—100 μm, 43—10 μm, 44–46—20 μm. Photographs by R.E. Romanov.
FIGURES 29–37 in Tolypella mongolica (Charophyceae, Characeae): A new dioecious charophyte species from the center of Eurasia and implications for charophyte taxonomy, including the validation of T. porteri and the new combination for T. jwalae
FIGURES 29–37. Oospores of Tolypella mongolica sp. nov., Mongolia (UBA, LE), different expression of surface sculpture, scanning electron microscopy: 29 & 30—densely coarsely tuberculate surface; 31—different expression of oospore surface at neighboring fossae, from sparsely weakly tuberculate to having complex tubercles at the middle of fossa; 32 & 33—isolated protrusions with acute forked ends; 34—tuberculate surface and tuberculate surface with forked acute protrusions at neighboring fossae; 35–37—surface resembling an aerial view of a mountain landscape. Scale: 29, 31 & 35—40 μm, 30, 32, 33, 34, 36 & 37—20 μm. Photographs by R.E. Romanov.
FIGURE 1 in Tolypella mongolica (Charophyceae, Characeae): A new dioecious charophyte species from the center of Eurasia and implications for charophyte taxonomy, including the validation of T. porteri and the new combination for T. jwalae
FIGURE 1. Holotype and isotypes of Tolypella mongolica sp. nov., Mongolia (UBA-6283). The upper bigger plant is a holotype. Scale: 2 cm. Photograph by R.E. Romanov.
FIGURES 23–28 in Tolypella mongolica (Charophyceae, Characeae): A new dioecious charophyte species from the center of Eurasia and implications for charophyte taxonomy, including the validation of T. porteri and the new combination for T. jwalae
FIGURES 23–28. Oospores of Tolypella mongolica sp. nov., Mongolia (UBA, LE), general appearance with different expression of surface sculpture, scanning electron microscopy: 23–25—lateral view; 26—apical view; 27—basal view; 28—tangential view of basal pole. Scale: 100 μm. Photographs by R.E. Romanov.
FIGURES 2–22 in Tolypella mongolica (Charophyceae, Characeae): A new dioecious charophyte species from the center of Eurasia and implications for charophyte taxonomy, including the validation of T. porteri and the new combination for T. jwalae
FIGURES 2–22. Morphological traits of Tolypella mongolica sp. nov., Mongolia (UBA, LE, NHMM): 2–5—apical parts of plants with different numbers of more or less compacted branchlets; 6—whorl of most compacted branchlets; 7—lateral branch; 8–10—basal parts of whorls with well-developed branchlets, arrowhead indicates lateral ray with fructifying node; 11—first node (arrowhead) of richly branched plant; 12—close view of apical whorls of branchlets, arrowhead indicates richly fertile single node of main axis of branchlet; 13—apical whorl of branchlets having two-celled ends; 14—gradually tapering three-celled end of long branchlets; 15–20—basal parts of branchlet whorls and axial nodes with numerous oogonia, arrowheads indicate single richly fertile nodes of branchlets above basal branchlet internode having variable length; 21 & 22—richly fertile single nodes of main axes of branchlets: 21—arrowheads indicate lateral rays; 22—arrowheads indicate nodes of lateral rays. Scale: 2–11—5 mm, 12–18, 20–22—1 mm, 19—2 mm. Photographs by R.E. Romanov.
FIGURE 47 in Tolypella mongolica (Charophyceae, Characeae): A new dioecious charophyte species from the center of Eurasia and implications for charophyte taxonomy, including the validation of T. porteri and the new combination for T. jwalae
FIGURE 47. ML phylogenetic tree of Characeae (model TIM3+I+G) showing the position of the new species based on rbcL sequence data (46 sequences, 1354 aligned positions). Supports [(BP)> 50% and (PP)> 0.95: ML/BI] are provided above/below the branches. Branches received 100% BP and 1.00 PP support, and the newly obtained sequences of Tolypella mongolica sp. nov. are shown in bold. Sequences of the different species carrying one genotype are marked with grey. Tolypella sections are based on Wood & Imahori (1965). Prepared by V.Yu. Nikulin.
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