Spaulding, S.,
Edlund, M.,
Metzeltin, D.
(2008).
Cymbopleura.
In Diatoms of North America.
Retrieved December 17, 2024, from https://diatoms.org/genera/cymbopleura
Asymmetric Biraphid
Cymbopleura
Valves slightly asymmetric to apical axis
Valves symmetric to transapical axis
Terminal raphe fissures deflected dorsally
Valves lack stigmata and apical pore fields
Cymbopleura frustules are characteristically large and relatively broad in valve outline. The frustules of Cymbopleura are asymmetric to the apical axis, typically with a convex ventral margin and an even broader convex dorsal margin. The striae are composed of rounded areolae. The proximal raphe ends are expanded, while the terminal...
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