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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(Grunow) Round & Basson
Witkowski et al. (2000):"Iconographia Diatomologica (Vol.VII). Diatom flora of marine coast I", pg.117, Pl. 53:12-21;
Achnanthes taeniata Grunow in Cleve & Grunow 1880
Cells form band-like colonies; valve is linear to linear-elliptic, with rounded apices; raphe valve has a fine raphe, parallel-sided sternum with a slightly expanded centre, raphe with simple central endings that turn slightly to one side; rapheless valve has a very broad sternum and marginal single (double) rows of irregular areolae (~30 in 10µm) separated from single (double) rows of mantle areolae; striae are uniseriate, difficult to observe under the light microscope, and consist of rounded areolae; length is 10-44µm, breadth is 4-8µm; striae count is 35 in 10µm (approx. 38 areolae in 10µm)