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.
Brun & Heribaud
Krammer, K. and Lange-Bertalot, H. (1991). Baccilariophyceae: Centrales, Fragilariaceae, Eunotiaceae. in: Süßwasserflora von Mitteleuropa (H. Ettl, J. Gerloff, H. Heynig & D. Mollenhauer, eds), 2(3), pp. 47; 322-323 [t.47:6-8]
Cyclotella iris Brun & Heribaud 1893
Valve is elliptical to round; central field is unevenly bordered, often stretched in a bipolar fashion and waved tangentially, and is roughly dotted (colliculate structure); margin of valve face is radially bordered in an uneven manner, with long and short grooves that are sometimes dividing (in smaller elliptical valves, the grooves may seem equally long); diameter is 8-50µm