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Category
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Class
Fragilariophyceae
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Order
Fragilariales
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Family
Fragilariaceae
Sorted from smallest to largest by maximum length
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Links
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Index Nominum Algarum
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CAS
Spaulding, S.,
Edlund, M.
(2008).
Distrionella.
In Diatoms of North America.
Retrieved June 08, 2023, from https://diatoms.org/genera/distrionella
Araphid
Distrionella
- Valves elongated, with capitate ends
- Striae unevenly spaced
- Rimoportula single, often central within a stria near one pole
Frustules of Distrionella are elongated with capitate ends. Valves may be slightly asymmetric to the transapical axis. Striae are unevenly spaced and become scattered and more irregular at the valve ends. Transapical ribs often evident. A central sternum is absent. Porefields, composed of simple porelli, are present at both valve ends....