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11 results for “Tabularia”
FIGURES 31–36 in Tabularia kobayasii: a new araphid diatom (Bacillariophyta, Fragilariaceae) from Japan
FIGURES 31–36. Tabularia kobayasii (31, 32) and T. investiens (33–36). SEM. 31, 33. Detail of external views of cribrate areolae. Arrowheads indicate the cross-bars (= vimines). 32, 34. Detail of internal views of areolae. 35. External view of valve face showing the areolae. 36. External polar view showing the ocellulimbus (asterisk) and the opening of rimoportula (arrow). Scale bars = 0.5 μm (31–34). 'a': length of the minor axis of areola, 'b': length of the major axis of ocellulimbus. See Material and Methods for details.
FIGURES 19–22. Tabularia kobayasii. SEM. 19 in Tabularia kobayasii: a new araphid diatom (Bacillariophyta, Fragilariaceae) from Japan
FIGURES 19–22. Tabularia kobayasii. SEM. 19. External view of valve mantle showing the areolae with cross-bars (= vimines). 20. Internal view of the areolae. 21. Detail of the cross section of areolae. Arrowheads indicate cross-bars (= vimines). 22. External view of
FIGURES 6–18 in Tabularia kobayasii: a new araphid diatom (Bacillariophyta, Fragilariaceae) from Japan
FIGURES 6–18. Tabularia kobayasii. LM (6–16) and SEM (17, 18), holotype and other specimens. 6, 16. Girdle views of two frustules. 7– 14. Valve views. 6, 7. Initial valves. 8. Specimen from holotype slide. 15. Girdle view of a frustule. 17. External view of a whole valve. Arrow indicates the opening of rimoportula. 18. Internal view of a whole valve. Arrow indicates the rimoportula. Scale bars = 5 μm (17, 18).
FIGURES 27–30. Tabularia kobayasii. SEM. 27, 28 in Tabularia kobayasii: a new araphid diatom (Bacillariophyta, Fragilariaceae) from Japan
FIGURES 27–30. Tabularia kobayasii. SEM. 27, 28. Terminal views of the same cingulum composed of a valvocopula (VC) and three bands (B2–B4). 29. Internal view of a valvocopula (VC) and four bands (B2–B5). Arrowheads indicate the crenulated pars interior of valvocopula. 30. Valvocopula. Arrowheads indicate the crenulated pars interior.
FIGURES 2–5 in Tabularia kobayasii: a new araphid diatom (Bacillariophyta, Fragilariaceae) from Japan
FIGURES 2–5. Tabularia kobayasii. Epiphytic on Caloglossa ogasawaraensis from Keihin Canal, Meguro River Estuary collected in 18 June 2008, LM (2, 3) and SEM (4, 5). 2. Living tufted and band–like colonies. 3. Living cells attached by small mucilage pads. Arrowheads indicate four plastids after cytokinesis. 4, 5. Tufted colonies.
FIGURES 23–26. Tabularia kobayasii. SEM. 23, 25 in Tabularia kobayasii: a new araphid diatom (Bacillariophyta, Fragilariaceae) from Japan
FIGURES 23–26. Tabularia kobayasii. SEM. 23, 25. External polar views showing the ocellulimbus (asterisks), the opening of rimoportula (arrow) and the tiny simple pores (arrowheads). 25. Double arrowhead indicates a small bulge of ocellulimbus. 24, 26. Internal polar views
FIGURE 1 in Tabularia kobayasii: a new araphid diatom (Bacillariophyta, Fragilariaceae) from Japan
FIGURE 1. Map of the 8 sampling estuaries in the Central Pacific coast of Japan. Numbers (I–VIII) correspond to those in Table 1.
FIGURES 28–33 in A new species of Tabularia (Kützing) Williams & Round from Poyang Lake, Jiangxi Province, China, with a cladistic analysis of the genus and their relatives
FIGURES 28–33. Tabularia sinensis, internal view of valves, SEM. Fig. 28: Internal view of entire valve. Fig. 29: Detail of internal view of pole with twin protruding lips of rimoportula, obliquely situated within sternum, striae composed of robust virgae, vimines as slender cross-members, and a sunken ocellulimbus. Fig. 30: Detail of sunken ocellulimbus. Fig. 31: Detail of valve margin with robust virgae meeting at margin edge to form sternum. Fig. 32: Detail of valve with vimines as slender cross-members. Fig. 33: Detail of valve with vimines as slender cross-members with cribra (closing plate).
FIGURES 1–21 in A new species of Tabularia (Kützing) Williams & Round from Poyang Lake, Jiangxi Province, China, with a cladistic analysis of the genus and their relatives
FIGURES 1–21. Tabularia sinensis, series of LM micrographs. Figs 1–13: illustrate size ranges of entire valves; the linear valves have squared apices, an exceptionally wide sternum, a rimoportula at each pole; Figure 6 shows a girdle view, the frustule being slightly bent at either end, giving a gentle lunate shape; bar = 10μm. Figs 14–21: Various valves with detail of pole with rimoportula; bar = 10μm.
FIGURES 22–27 in A new species of Tabularia (Kützing) Williams & Round from Poyang Lake, Jiangxi Province, China, with a cladistic analysis of the genus and their relatives
FIGURES 22–27. Tabularia sinensis, external view of valves, SEM. Fig. 22: External view of entire valve. Fig. 23: View of valve pole showing rimoportula within sternum, striae composed of robust virgae, slender vimines and cribra (closing plate) occupying most of the opening, a sunken ocellulimbus with small but wide spines just overhanging upper part of ocellulimbus. Fig. 24: Detail of upper part of sunken ocellulimbus. Fig. 25: Detail of striae with robust virgae, slender vimines and cribra (closing plate) occupying most of the opening. Fig. 26: Detail of valve margin with the suggestion of either very reduced or broken spines along the edge. Fig. 27: Detail of valve pole showing upper portion of sunken ocellulimbus with small overhanging spines.
FIGURES 34–39 in A new species of Tabularia (Kützing) Williams & Round from Poyang Lake, Jiangxi Province, China, with a cladistic analysis of the genus and their relatives
FIGURES 34–39. Tabularia sinensis, external details of valves, SEM. Fig. 34: External view of entire valve with valvocopula attached (appears plain, with no ornamentation), striae visible, polar overhanging spines and ocellulimbus also visible. Fig. 35: Detail of external view of pole with overhanging spines evident. Fig. 36: Detail of valve mantle, structural composition of striae evident, small spines along margin visible as humps. Fig. 37: Detail of valve with vimines as slender cross-members and cribra (closing plate) in place. Fig. 38: Detail of valve mantle/face margin with vimines as slender cross-members with cribra (closing plate). Fig. 39: Detail of valve mantle/face margin with vimines as slender cross-members with cribra (closing plate) and mantle plaques.
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