Compare Gomphonema louisiananum
Gomphonema apuncto is more narrow and linear.
Gomphonema christensenii has longer striae that extend into the axial area and a greater range of size.
Gomphonema puiggarianum var. aequatorialis is larger, with a lower stria density.
LM scalebar = 10 µm
Length Range
13.5-38.3 µm
13.5-38.3 µm
Width Range
3.8-5.5 µm
3.8-5.5 µm
Striae in 10 µm
11-12 at the valve center, 14-16 at the apices
11-12 at the valve center, 14-16 at the apices
Length Range
21.0-30.7 µm
21.0-30.7 µm
Width Range
3.0-4.1 µm
3.0-4.1 µm
Striae in 10 µm
13-16
13-16
Length Range
32.8-57.4 µm
32.8-57.4 µm
Width Range
6.1-7.8 µm
6.1-7.8 µm
Striae in 10 µm
13-16
13-16
