Welcome to the Diatom Image Database! The Periphyton Group at Florida International University created and maintains the Diatom Image Database, which includes over 980 diatom taxa found in the greater Everglades region of south Florida. Please send questions or comments about the Diatom Image Database to Franco Tobias .
You can also click on one of labeled areas on the map to browse by location.
Krammer K. & Lange-Bertalot H. (1997): "Susswaserflora von Mitteleuropa", Vol.1, pg.106,107, Fig:33:9-11 u. 13-17
Navicula tenella (Brebisson ex Kutzing 1849 sensu Grunow 1880), Navicula radiosa var. tenella (Brebisson ex Kutzing) Van Heurck 1885 (V.H. Type de Synopsis 107, non Cleve & Moller 1881, Nr. 224)
Valve is narrow- to rhombic lanceolate with sharply rounded ends; raphe is narrow, filiform; axial area is narrow and linear, leading to a small but distinct central area; lineolate striae are radial, short at the centre, becoming parallel to convergent at the ends; length is 15-40µm, breadth is 5-7µm; striae count is (12)14-16(18?) in 10µm (35-45 lineolae in 10µm)