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Navicula (Bacillariophyceae)

Navicula sp. from a lake in NH USA
Valve view with raphe nearly in focus, and two parietal chloroplasts

Navicula sp. from a lake in NH USA
Valve view with two chloroplasts and oil droplets

Navicula sp. from a lake in NH USA
Girdle view shows two chloroplasts

Navicula sp. from a lake in NH USA
Valve view with parietal chloroplasts

Navicula sp. from a lake in NH USA
Girdle view

Navicula sp. from a lake in NH USA
Capitate valves

Navicula sp.
Photograph by Harold Taylor, Kensworth UK

Navicula sp.
Photograph by Kalli Olli, Tartu Ülikool, Estonia posted online

Navicula gibbula Cleve 1894
Modified from sketch by Ettl & Gaertner (1995) from the collection of Manfred Bölter, University of Kiel, DE

Ettl, H. & G. Gärtner 1995. Syllabus der Boden-, Luft- und Flechtenalgen. Gustav Fischer, Stuttgart

Navicula cryptocephala Kuetz. 1844
Modified from sketch by Ettl & Gaertner (1995) from the collection of Manfred Bölter, University of Kiel, DE

Ettl, H. & G. Gärtner 1995. Syllabus der Boden-, Luft- und Flechtenalgen. Gustav Fischer, Stuttgart

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