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Category
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Class
Coscinodiscophyceae
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Order
Rhizosoleniales
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Family
Rhizosoleniaceae
Sorted from smallest to largest by maximum length
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Links
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Index Nominum Algarum
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DiatomBase
Frankovich, T.
(2022).
Guinardia.
In Diatoms of North America.
Retrieved May 29, 2023, from https://diatoms.org/genera/guinardia
Centric
Guinardia
- Frustules lightly-silicified, delicate
- Cells joined in chain-like colonies
- Valves with shallow valve mantle
- Copulae numerous, ligulate
Frustules are joined in colonies to form straight or curved chains. The connection between frustules is weak and formed by joining of the external process of a rimoportula with a depression on the valve face of the adjacent frustule. Valves are circular, with very shallow mantles and numerous ligulate copulae. The length of the pervalvar...