Gomphonema turgidum is wider and more robust.

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

Gomphonema turgidum

Ehrenb. 1854

Length Range
30-49 µm
Width Range
11.3-15.0 µm
Striae in 10 µm
10-14
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