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.
(Schmidt 1873) Cleve
Witkowski et al. (2000):"Iconographia Diatomologica (Vol.VII). Diatom flora of marine coast I", pg.197, Pl.92:4,5;
Navicula weissflogii (Schmidt, 1873), Navicula diversa (Greville, 1863)
Valves linear-elliptic with deeply constricted valve margins and broadly rounded apices, 27-110µm long, 11-35 broad. Central nodule small, raphe sternum furrows close together and parallel, longitudinal canals linear. Transapical striae robust, slightly radiate, 7-8 in 10µm, crossed by straight or slightly wavy longitudinal ribs.