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Category
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Class
Bacillariophyceae
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Order
Cymbellales
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Family
Sorted from smallest to largest by maximum length
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Citations
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Jahn, R., Kusber, W-F., Skibbe, O., Zimmermann, J., Van, A.T., Buczkó, K. and Abarca, N. (2019) Gomphonella olivacea (Bacillariophyceae) – a new phylogenetic position for a well-known taxon, its typification, new species and combinations Plant Ecology and Evolution 152 (2): 219–247.
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Spaulding, S.
(2019).
Gomphonella.
In Diatoms of North America.
Retrieved March 07, 2021, from https://diatoms.org/genera/gomphonella
Asymmetric Biraphid
Gomphonella
- Valves wedge-shaped
- Apical porefield bisected by terminal raphe fissure
- Pseudoseptae present at apices
- Striae biseriate
Valves are wedge-shaped. Striae are biseriate (to triseriate) and composed of small, round areolae. The areolae are unoccluded. A diagnostic feature of the genus is an absence of a feature; valves lack stigmoids or stigmata. The raphe is filiform. Externally, the proximal raphe ends are slightly expanded. Internally, the proximal raphe...