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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)

Planothidium frequentissimum

Planothidium frequentissimum


Authority:
(Lange-Bertalot) Round & Bukhtiyarova
Year:
1996
References:
Round, F E. & Bukhtiyarova, L. (1996). New Genera Based on Achnanthidium. in: Diatom Research (F. Round, D. G. Mann and M. J. Sullivan, eds), 11(2), pp. 345-361 (fig.7-10)
Synonyms:
Achnanthes lanceolata var. frequentissima Lange-Bertalot 1991; Achnanthes lanceolata var. dubia f. minuta Grun. in Van Heurck 1880-1887 (basionym)
Description:
Description is the same as for Planothidium lanceolatum, except striae are interrupted centrally on raphe valve and on one side of araphid valve, where it is marked by a "hoof-mark" depression (this is an internal capped structure in some taxa)
Projects:
  • Transect Project


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