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Category
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Class
Fragilariophyceae
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Order
Fragilariales
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Family
Fragilariaceae
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Type Species
Meridion vernale Agardh
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).
Meridion.
In Diatoms of North America.
Retrieved April 02, 2023, from https://diatoms.org/genera/meridion
Araphid
Meridion
- Valve symmetry to the transverse axis variable
- Frustules linear to wedge-shaped in girdle view
- Frustules may be joined in colonies
- Costae present
Valves of Meridion are variable in symmetry to the transverse axis; they are either strongly heteropolar or isopolar. The heteropolar species are clavate (club-shaped) in valve view and wedge-shaped in girdle view. Septae (attached to girdle elements) are present. An apical porefield is present at one end. Valves may have 1-2...