Diatoms of North AmericaDiatoms of North America

Fragilariforma

Williams and Round 1988

Fragiliariforma Guide2
  • Category
    Araphid
  • Class
    Fragilariophyceae
  • Order
    Fragilariales
  • Family
    Fragilariaceae
  • Type Species
    Fragilariforma virescens (Ralfs) Williams and Round

Displaying 8 of 8 species

Sorted from smallest to largest by maximum length
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Fragilariforma horstii Length: 6-19 Width: 6-11 Striae: 34-34
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Fragilariforma marylandica Length: 16-25 Width: 4-6 Striae: 16-21
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Fragilariforma polygonata Length: 22-37 Width: 9-10 Striae: 18-20
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Fragilariforma constricta Length: 22-40 Width: 3-5 Striae: 16-24
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Fragilariforma bicapitata Length: 9-51 Width: 2-5 Striae: 11-15
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Fragilariforma nitzschioides Length: 19-54 Width: 3-5 Striae: 18-25
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Fragilariforma virescens Length: 15-60 Width: 6-7 Striae: 20-22
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Fragilariforma acidobiontica Length: 32-67 Width: 3-4 Striae: 12-14

6 Additional Fragilariforma species

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Cite This Page

Spaulding, S., Edlund, M. (2008). Fragilariforma. In Diatoms of North America. Retrieved December 12, 2025, from https://diatoms.org/genera/fragilariforma

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