Diatoms of North AmericaDiatoms of North America
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Compare Gomphonema truncatum

Ehrenb. 1832

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Gomphonema turgidum is wider and more robust.

LM scalebar = 10 µm
Gomphonema Truncatum 001 Gomphonema Truncatum 003 Gomphonema Truncatum 002 Gomphonema Truncatum 005
Length Range
30-60 µm
Width Range
9-10 µm
Striae in 10 µm
10-12

Gomphonema turgidum

Ehrenb. 1854

Gomp Turg 15670B 12072015 Cl Gomp Turg 15544A 09172015 25 Cl Gomp Turg 15670B 12072015 03 Cl Gomphonema turgidum LM3 Gomphonema turgidum LM2 Gomp Turg 15596A 09042015 33 Cl Gomp Turg 15670B 12072015 04 Cl
Length Range
30-49 µm
Width Range
11.3-15.0 µm
Striae in 10 µm
10-14