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.
Lange-Bertalot & Reichardt
Lange-Bertalot, H. (1993). 85 New Taxa and much more than 100 taxonomic clarifications supplementary to Süßwasserflora von Mitteleuropa 2(1-4). Bibliotheca Diatomologica, 27, pp. 57, 58, 320, 321 [t.78:2-8]
Valves have clavate shape consistent over a wide range of lengths; some overlap with G. neonasutum can be seen where they co-occur