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Category
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Class
Bacillariophyceae
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Order
Cymbellales
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Family
Cymbellaceae
Sorted from smallest to largest by maximum length
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Citations
Bahls, L. (2013) Encyonopsis from western North America: 31 species from Alberta, Idaho, Montana, Oregon, South Dakota, and Washington, including 17 species described as new. Northwest Diatoms, Volume 5. The Montana Diatom Collection, Helena, 46 pp.
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Bahls, L.
(2015).
Kurtkrammeria.
In Diatoms of North America.
Retrieved June 08, 2023, from https://diatoms.org/genera/kurtkrammeria
Asymmetric Biraphid
Kurtkrammeria
- Valves naviculoid, slightly dorsiventral
- Areolae slit-like or crescent shaped
- Striae convergent at the apices
- 1-3 dorsal stigmata present, or stigma absent
- Apical pore fields present or absent
Valves are naviculoid and slightly dorsiventral, symmetric to the transapical axis and asymmetric to the apical axis. The raphe is centrally located. Areolae in the striae are slit-like or crescent shaped and oriented with their long axes parallel to the apical axis. Transapical striae are radiate near the valve center, becoming...