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10 results for “Chamaepinnularia”
FIGURES 36–40. Chamaepinnularia salina Beauger, C.E in Chamaepinnularia salina (Bacillariophyta), a new diatom species from French mineral springs (Massif Central)
FIGURES 36–40. Chamaepinnularia salina Beauger, C.E.Wetzel, Allain & Ector sp. nov. Type population from Sail spring. SEM. 36. External detail of the central area and of the striae. Note the proximal raphe endings and the sternum. 37. External detail of the hooked distal raphe endings. 38, 40. Internal view of an entire valve showing the striae, the central nodule, the proximal and distal raphe endings. The proximal raphe endings are unilaterally hooked. The distal raphe fissures terminate internally with a small helictoglossa. 39. Internal detail showing the distal raphe endings. Internally, the areola openings are divided with internal plates of silica. Scale bar = 1 μm (Figs 36–37, 39), 5 µm (Figs 38, 40).
FIGURES 41–44. Chamaepinnularia salina Beauger, C.E in Chamaepinnularia salina (Bacillariophyta), a new diatom species from French mineral springs (Massif Central)
FIGURES 41–44. Chamaepinnularia salina Beauger, C.E.Wetzel, Allain & Ector sp. nov. from 41. Zagat spring, 42: Saurier spring; 43: Camuse spring (CLF!, slide no. CLF103305) and 44. Felix spring. Scale bar = 5 μm (Fig. 41) and 4 µm (Figs 42–44).
FIGURES 2–35. Chamaepinnularia salina Beauger, C.E in Chamaepinnularia salina (Bacillariophyta), a new diatom species from French mineral springs (Massif Central)
FIGURES 2–35. Chamaepinnularia salina Beauger, C.E.Wetzel, Allain & Ector sp. nov., LM. (Figs 2–28). Type population from Sail spring. SEM. (Figs 29–35) Type population from Sail spring. 29–35. External view of an entire valve showing the raphe structure and the striae. The striae are composed of simple, chamber-like areolae, with external openings covered by vela. The external proximal raphe endings are inconspicuous.
FIGURE 1 in Chamaepinnularia salina (Bacillariophyta), a new diatom species from French mineral springs (Massif Central)
FIGURE 1. Map of the study spring. a: map of France; b: position of the Sail spring in the Puy-de-Dôme department (square); c and d: photographs of the spring taken in December 2014 and November 2018 respectively.
FIGURES 46–64 in Chamaepinnularia salina (Bacillariophyta), a new diatom species from French mineral springs (Massif Central)
FIGURES 46–64. Microcostatus turritus from Cave Bossea, Italy. LM. Figs 46–58. Population from Cave Bossea, Italy. SEM. Figs 59–64. Population from Cave Bossea, Italy. 59–62. External view of an entire valve showing the raphe structure and the microcostae. 63. Internal view of an entire valve showing the microcostae, the central nodule, the proximal and distal raphe endings. 64. Internal detail showing the striae. Scale bar = 10 μm (Figs 46–58), 4 µm (Fig. 63), 3 µm (Figs 59–62) and 500 nm (Fig. 64).
FIGURES 12–20. Chamaepinnularia taihangensis, SEM. 12–16, external views. 12 in Chamaepinnularia taihangensis sp. nov. (Bacillariophyceae), a new diatom species from Taihang Valley, Shanxi province, China
FIGURES 12–20. Chamaepinnularia taihangensis, SEM. 12–16, external views. 12. Entire valve, showing striae are composed of a elongated chamber-like areolae, and areolae openings covered by vela. 13, 16. View of the apex, with capitate apices, terminal raphe fissures distinct curving, continuing onto the mantle. 14. Center of the valve, showing the proximal raphe expanded and bent slightly to the same side. 15. Showing the siliceous thickening of the vela is thinner and easy to fracture. 17–20, internal views. 17. Entire valve. Showing the areolae openings are interrupted by siliceous bridge that divides striae in two parts.18, 20. View of the apex, distal raphe ends weakly deflected and terminate as helictoglossae. 19. Center of the valve, showing the proximal raphe ends unilaterally hooked. Scale bar = 1 μm.
FIGURE 1 in Chamaepinnularia taihangensis sp. nov. (Bacillariophyceae), a new diatom species from Taihang Valley, Shanxi province, China
FIGURE 1. Map of China and Shanxi province with arrows indicating the geographical location of the study area.
FIGURES 2–11 in Chamaepinnularia taihangensis sp. nov. (Bacillariophyceae), a new diatom species from Taihang Valley, Shanxi province, China
FIGURES 2–11. Chamaepinnularia taihangensis sp. nov. LM images of valve view showing dimensions range in size. Scale bar = 10 μm.
FIGURE 45 in Chamaepinnularia salina (Bacillariophyta), a new diatom species from French mineral springs (Massif Central)
FIGURE 45. Piper diagram done on the 12 springs where Chamaepinnularia salina was observed.
FIGURE 65 in Chamaepinnularia salina (Bacillariophyta), a new diatom species from French mineral springs (Massif Central)
FIGURE 65. Cl versus Na concentrations for Sail spring samples.
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