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.
(W. Smith) Van Heurck
Krammer K. & Lange-Bertalot H. (1997): "Susswaserflora von Mitteleuropa", Vol.2, Taf.20, fig.1-7;
Homeocladia filiformis W. Smith 1856 (basionym)
Frustule is weakly sigmoid, linear-lanceolate in girdle view, gradually narrowing towards the ends; valve is usually linear-lanceolate with weakly sigmoid or straight apical axis and broadly rounded ends; keel is marginal, weakly deflected in the valve centre, with 8-11 fibulae in 10µm (the central two are distinctly further apart than the others); transapical striae are very faint; length is 20-100µm, breadth is 4-6µm; striae count is about 36 in 10µm
40 - 80 µm
4 - 6 µm
25 - 35
7 - 10