Compare Cymbella lanceolata
Compare
In other large species of Cymbella, stigmata are present, or the proximal raphe ends are dilated or bulbous, as in C. aspera, or the terminal raphe fissures are deflected at a shallower angle, or the length-to-width ratio is smaller, or a combination of these features prevail.
LM scalebar = 10 µm
Length Range
121.3-232.3 µm
121.3-232.3 µm
Width Range
21.8-29.9 µm
21.8-29.9 µm
Striae in 10 µm
10-12 at the valve center, up to 14 near the apices
10-12 at the valve center, up to 14 near the apices
Cymbella aspera
Length Range
112.0-221.2 µm
112.0-221.2 µm
Width Range
25.2-38.5 µm
25.2-38.5 µm
Striae in 10 µm
7-9 at the valve center, 10-11 near the apices
7-9 at the valve center, 10-11 near the apices