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Diatom Image Database

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 .

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Map of south Florida Loxahatchee (LOX) WCA 2A WCA 3A Biscayne Bay Shark River Slough (SRS) Taylor Slough (TS) Florida Bay Everglades National Park (ENP) Everglades National Park (ENP)

Navicula seminulum

Navicula seminulum


Authority:
Grunow
Year:
1860
References:
Krammer K. & Lange-Bertalot H. (1997): "Susswaserflora von Mitteleuropa", Vol.1, pg.230,231, Fig.76:30-36;
Synonyms:
Navicula saugerii (Desmazieres, 1836-1854)
Ecological Preference:
Unknown
Description:
Valve is narrowly linear-elliptic, the smallest being elliptical to round in shape, with weakly rounded middles, and broadly rounded apices; raphe is filiform, weakly bent; axial area is narrow and linear, central area is "cross-shaped," somewhat rectangular and almost reaching the valve margins (where it is bordered by very short striae); striae are continuously weakly radial, becoming parallel at the apices; length is 3-21µm, breadth is 2-5µm; striae count is 18-22 in 10µm
Projects:
  • Southeast Florida Coastal Mangroves
  • Transect Project


    • Sample localities:
  • Water Conservation Area 2A (WCA 2A)