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FIGURES 15–19 in Fallacia fawensis sp. nov., a new brackish water diatom (Bacillariophyceae) from Southern Iraq

FIGURES 15–19: Fallacia fawensis Al-Handal, Al-Shaheen, Al-Saedy & Wulff sp. nov. Fig. 15 SEM middle part of the external valve face showing proximal raphe sterna and endings. Figs 16,17 SEM internal valve face. Fig. 18 SEM internal valve face showing the thin silica flaps covering parts of the elongated striae and appear as lateral areas. Fig. 19 SEM upper part of internal valve face showing distal raphe ending on helictoglossa. Scale bars = 1 μm for Figs 15–18, 0.2 μm for Fig 19.

FIGURES 11–14 in Fallacia fawensis sp. nov., a new brackish water diatom (Bacillariophyceae) from Southern Iraq

FIGURES 11–14: Fallacia fawensis Al-Handal, Al-Shaheen, Al-Saedy & Wulff sp. nov. Figs 11,13 SEM external valve face showing raphe sterna and valve mantle. Fig. 12 SEM upper part of the valve external face exhibiting the narrowing raphe sterna near valve apex (arrow). Fig. 14 SEM detail of the external valve face showing structure of the conopeum and the polar elongated pores of the lyre canal (arrows). Scale bars = 1 μm for Figs 11,13, 0.2 μm for Fig. 12, 0.4 μm for Fig. 14.

FIGURES 1–10 in Fallacia fawensis sp. nov., a new brackish water diatom (Bacillariophyceae) from Southern Iraq

FIGURES 1–10: Fallacia fawensis Al-Handal, Al-Shaheen, Al-Saedy & Wulff sp. nov., LM images of the type material from Shatt Al–Arab River, Southern Iraq showing valve size and outline variation. Scale bar = 10 μm.

FIGURES 29–33 in Cymbopleura deqinensis sp. nov. (Cymbellaceae; Bacillariophyceae), a new species from Yunnan Province, China

FIGURES 29–33. Cymbopleura deqinensis sp. nov., SEM, internal views. 29, 30. Internal view of entire valve. 31, 32. Detail of valve apices with prominent helictoglossa deflected to the dorsal side. 33. Detail of the valve central area showing the intermissio is lacking. Scale bar = 2 μm (Figs 29–30), 1 μm (Figs 31–33).

FIGURES 1–20 in Cymbopleura deqinensis sp. nov. (Cymbellaceae; Bacillariophyceae), a new species from Yunnan Province, China

FIGURES 1–20. Cymbopleura deqinensis sp. nov., LM, DIC. Valve views, showing size range and variability of the holotype population. Scale bar = 10 μm.

FIGURES 9 in Marine Achnanthales (Bacillariophyceae) from New Caledonia (Melanesia): assemblage specificities, ultramafic environment

FIGURES 9–. Cocconeis pseudodiruptoides Foged. SEM (New Caledonia, Melanesia). SV hemi-fascia (external view 9, arrow) and slightly sigmoid sternum (9 and 11), complex loculate SV areolae (external views 10 and 11, arrow; internal view 12, arrowhead), RV with a strongly curved raphe ending (external view 14, arrowhead), RV areolae marginal short slits (external view 13, arrowhead), RV apex (external view 15). Scale bars = 3 µm (9, 11, 14), 2 µm (12), 1 µm (15), 500 nm (10), 300 nm (13).

FIGURES –. Rare taxa (SEM, New Caledonia, Melanesia). Cocconeis sp. 2 in Riaux-Gobin et al. 2015 (31, 32), short marginal SV striae between each short raised virgae (31, arrow; 32, arrowhead), SV narrow sternum, siliceous pearls (31), C. sp. 4 in Riaux-Gobin et al. 2015 (33–34), strong marginal crista marginalis, short marginal striae on top of each short raised virga (33, arrow; 34, arrowhead),?C. sp. 5 in Riaux-Gobin et al. 2015 (35–36), short SV striae and a raised axial structure (35, arrow). Scale bars = 3 µm (31), 2 µm (33, 35), 1 µm (32, 36), 500 nm (34). in Marine Achnanthales (Bacillariophyceae) from New Caledonia (Melanesia): assemblage specificities, ultramafic environment

FIGURES –. Rare taxa (SEM, New Caledonia, Melanesia). Cocconeis sp. 2 in Riaux-Gobin et al. 2015 (31, 32), short marginal SV striae between each short raised virgae (31, arrow; 32, arrowhead), SV narrow sternum, siliceous pearls (31), C. sp. 4 in Riaux-Gobin et al. 2015 (33–34), strong marginal crista marginalis, short marginal striae on top of each short raised virga (33, arrow; 34, arrowhead),?C. sp. 5 in Riaux-Gobin et al. 2015 (35–36), short SV striae and a raised axial structure (35, arrow). Scale bars = 3 µm (31), 2 µm (33, 35), 1 µm (32, 36), 500 nm (34).

FIGURES –8. Cocconeis coronatoides Riaux-Gobin & Romero forma 1. SEM (New Caledonia, Melanesia). SVVC partially attached (2, arrowhead), SV areolae domed hymenes with radial slits arranged by sectors (external view 3, arrowhead), marginal RV hyaline area (external view 4, arrowhead), uniseriate striae up to margin (4), open RVVC (5, ellipse), RVVC with irregularly spread fimbriae (6, arrowhead), SVVC still attached, small marginal chambers (internal view 7, arrowhead), SV margin (external view 8). Scale bars = 3 µm (8), 2 µm (2, 4, 7), 1 µm (6), 700 nm (5), 200 nm (3). in Marine Achnanthales (Bacillariophyceae) from New Caledonia (Melanesia): assemblage specificities, ultramafic environment

FIGURES –8. Cocconeis coronatoides Riaux-Gobin & Romero forma 1. SEM (New Caledonia, Melanesia). SVVC partially attached (2, arrowhead), SV areolae domed hymenes with radial slits arranged by sectors (external view 3, arrowhead), marginal RV hyaline area (external view 4, arrowhead), uniseriate striae up to margin (4), open RVVC (5, ellipse), RVVC with irregularly spread fimbriae (6, arrowhead), SVVC still attached, small marginal chambers (internal view 7, arrowhead), SV margin (external view 8). Scale bars = 3 µm (8), 2 µm (2, 4, 7), 1 µm (6), 700 nm (5), 200 nm (3).

FIGURES – 0. Cocconeis cf. delapunctata Hohn. SEM (New Caledonia, Melanesia). SV with axial void areas (external views 27–29, arrowheads), possible RV with areas devoid of areolae (30, arrowheads). Scale bars = 2 µm (27–30). in Marine Achnanthales (Bacillariophyceae) from New Caledonia (Melanesia): assemblage specificities, ultramafic environment

FIGURES – 0. Cocconeis cf. delapunctata Hohn. SEM (New Caledonia, Melanesia). SV with axial void areas (external views 27–29, arrowheads), possible RV with areas devoid of areolae (30, arrowheads). Scale bars = 2 µm (27–30).

FIGURE. Sampling sites in Province Sud (New Caledonia) and major mining Ni sites (* i.e.: Thio, Goro, La Tontouta), and major industrial Ni site (circle: Doniambo). in Marine Achnanthales (Bacillariophyceae) from New Caledonia (Melanesia): assemblage specificities, ultramafic environment

FIGURE. Sampling sites in Province Sud (New Caledonia) and major mining Ni sites (* i.e.: Thio, Goro, La Tontouta), and major industrial Ni site (circle: Doniambo).

FIGURES – 0. Cocconeis sp. (cf. capensis (Cholnoky) Witkowski). SEM (New Caledonia, Melanesia). External views. Biseriate SV striae (16, 18, twin arrows), narrow and straight SV sternum, marginal large area with one row of beads (16–18), SV marginal area with tiny pores (17), SV crater-like areolae with oblong in a zigzag lumen (19), SV areolae with sort of expansions (20). Scale bars: 4 µm (16), 3 µm (18), 700 nm (17), 400 nm (19–20). in Marine Achnanthales (Bacillariophyceae) from New Caledonia (Melanesia): assemblage specificities, ultramafic environment

FIGURES – 0. Cocconeis sp. (cf. capensis (Cholnoky) Witkowski). SEM (New Caledonia, Melanesia). External views. Biseriate SV striae (16, 18, twin arrows), narrow and straight SV sternum, marginal large area with one row of beads (16–18), SV marginal area with tiny pores (17), SV crater-like areolae with oblong in a zigzag lumen (19), SV areolae with sort of expansions (20). Scale bars: 4 µm (16), 3 µm (18), 700 nm (17), 400 nm (19–20).

FIGURES –. Cocconeis sp. (cf. C. bilicis F.Meister). SEM (New Caledonia, Melanesia). Different specimens with SV sectors separated (or not) by a crista marginalis (21, 24), SV striae uniseriae near the sternum and biseriate thereafter (21, 24), SV areolae lumen with circular ornamentation (23, arrow), crista marginalis (22), SVVC in advalvar view with digit fimbriae (25, arrowhead), large RV axial concave area (26). Scale bars = 6 µm (24), 5 µm (26), 4 µm (21), 3 µm (25), 1 µm (22–23). in Marine Achnanthales (Bacillariophyceae) from New Caledonia (Melanesia): assemblage specificities, ultramafic environment

FIGURES –. Cocconeis sp. (cf. C. bilicis F.Meister). SEM (New Caledonia, Melanesia). Different specimens with SV sectors separated (or not) by a crista marginalis (21, 24), SV striae uniseriae near the sternum and biseriate thereafter (21, 24), SV areolae lumen with circular ornamentation (23, arrow), crista marginalis (22), SVVC in advalvar view with digit fimbriae (25, arrowhead), large RV axial concave area (26). Scale bars = 6 µm (24), 5 µm (26), 4 µm (21), 3 µm (25), 1 µm (22–23).

FIGURE 1–60 in Platessa arborea sp. nov. (Bacillariophyceae): A new tree moss dwelling diatom from the Eastern Himalayas, India

FIGURE 1–60. Light microscope images of Platessa arborea sp. nov. Valves representing the size diminution series. 1–30. Raphesternum valve, and 31–60. Sternum valve. Scale bar: 10 μm.

FIGURE 61–67 in Platessa arborea sp. nov. (Bacillariophyceae): A new tree moss dwelling diatom from the Eastern Himalayas, India

FIGURE 61–67. Platessa arborea sp. nov. SEM. 61. External view of the whole valve (Raphe-sternum valve) showing the striae arrangement and rectangular axial area at the middle of the valve. 62. External view of the whole valve (Sternum valve) showing the broad axial area at the center and biseriate striae near the mantle. 63. External view of apices showing the hooked proximal raphe ends and distal raphe end deflection. 64. Internal view of apices showing the proximal and distal raphe ends curvature and deflection. 65. Internal view of the whole valve (Raphe-sternum valve) showing the opposite deflection of both raphe ends and distal raphe ends with prominent helictoglossae. 66–67. Internal view of the whole valve (Sternum valve) showing the wide axial area and raised interstriae. Scale bars: = 1 μm (Figs 61–67).

FIGURES 10–15 in A new species of Fogedia (Bacillariophyceae) from tidal flats of Northeast Asia

FIGURES 10–15. SEM photos of Fogedia orientalis Northeast Asia tidal flat; Fig. 10. External view of whole valve; Fig. 11. Central area in external valve view; Fig. 12. Apical area in external valve view; Fig. 13. Overall view of valve interior; Fig. 14. Central area in internal valve view; Fig. 15. Apical area in internal valve view. Scale bars: 1 µm.

FIGURE 1 in A new species of Fogedia (Bacillariophyceae) from tidal flats of Northeast Asia

FIGURE 1. Locations where Fogedia orientalis has been observed (○: Sand flat, ●: Mud flat, ◎: Mixed flat).

FIGURES 2–9 in A new species of Fogedia (Bacillariophyceae) from tidal flats of Northeast Asia

FIGURES 2–9. Fogedia orientalis Kim, Khim, Witkowski and Park, sp. nov. Valves of Fogedia orientalis from Northeast Asia tidal flat. Fig. 2. Specimen from the Korea (KO-BO). Fig. 3. Specimen from the China (CH-YK2). Figs 4, 7-9. Specimens from the Korea (KO-GY). Fig. 5. Specimen from the China (CH-DF). Fig. 6. Specimen from the Korea (KO-GY) as holotype. Scale bar: 10 µm.

FIGURES 16–19 in Valve Ultrastructure and Description of a new Luticola D.G.Mann (Bacillariophyceae) species from Colorado, USA

FIGURES 16–19. Luticola coloradiana, sp. nov. Scanning electron microscopy. Internal views. Figs 16, 17. Valve views, showing expanded, internally-raise fascia of the central area bearing straight proximal raphe ends, a simple stigma opening, and inwardly protruding siliceous structures from the margin and valve face. Scale bars = 10 µm. Fig. 18. Central nodule with proximal raphe ends and round stigma opening. Scale bar = 0.3 µm. Fig. 19. Distal raphe end with small helictoglossa. Scale bar = 0.3 µm.

FIGURES 1–8 in Valve Ultrastructure and Description of a new Luticola D.G.Mann (Bacillariophyceae) species from Colorado, USA

FIGURES 1–8. Luticola coloradiana, sp. nov. Light microscopy. Valve views. Size diminution series. All specimens are from the holotype slide. Scale bar = 10 µm for all images.

FIGURES 12–15 in Valve Ultrastructure and Description of a new Luticola D.G.Mann (Bacillariophyceae) species from Colorado, USA

FIGURES 12–15. Luticola coloradiana, sp. nov. Scanning electron microscopy. External views. Fig. 12. Central area with deflected external proximal raphe ends. Arrow indicates stigma opening. Scale bar = 1.5 µm. Fig. 13. Showing many depressions in the central area, many of which also have very small, rounded granules. Scale bar = 1.5 µm. Fig. 14. External distal raphe end is hooked and extends onto the mantle. Scale bar = 1.0 µm. Fig. 15. Girdle view of the end of the valve. Elevated ridge around the margin of the valve is evident. There is a row of elongated areolae which have a row of smaller areolae positioned towards the valve. Cingulum elements have a row of poroids. Scale bar = 2.5 µm.