Diatoms of North AmericaDiatoms of North America
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Compare Gomphonema pseudosphaerophorum

H.Kobayasi 1988

Compare

Gomphonema sphaerophorum is much wider throughout the valve.

LM scalebar = 10 µm
Gomphonema pseudosphaerophorum LM1 Gomphonema pseudosphaerophorum LM2 Gomphonema pseudosphaerophorum LM3 Gomphonema pseudosphaerophorum LM4 Gomphonema pseudosphaerophorum LM5 Gomphonema pseudosphaerophorum LM6
Length Range
41.9-50.2 µm
Width Range
8.1-9.4 µm
Striae in 10 µm
9-14

Gomphonema sphaerophorum

Ehrenb. 1845

Gomphonema sphaerophorum LM7 Gomphonema sphaerophorum LM6 Gomphonema sphaerophorum LM2 Gomphonema sphaerophorum LM1 Gomphonema sphaerophorum LM4 Gomphonema sphaerophorum LM5
Length Range
36.7-55.9 µm
Width Range
12.8-13.2 µm
Striae in 10 µm
12-16