Compare

This taxon is quite distinctive for its large size and expanded, asymmetric central area.

LM scalebar = 10 µm
Gomphonema semiapertum LM1 Gomphonema semiapertum LM2 Gomphonema semiapertum LM3 Gomphonema semiapertum LM4 Gomphonema semiapertum LM5 Gomphonema semiapertum LM6 Gomphonema semiapertum LM7
Length Range
74.2-113.2 µm
Width Range
10.3-14.1 µm
Striae in 10 µm
9-12

Gomphonema californicum

Stancheva and Kociolek 2016

Gomphonema californicum LM3 Gomphonema californicum LM1 Gomphonema californicum LM2 Gomphonema californicum LM4 Gomphonema californicum LM5 Gomphonema californicum LM6
Length Range
22-69 µm
Width Range
5.6-8.3 µm
Striae in 10 µm
10-15

Diatoms of North America is running a fundraising campaign to keep the servers in operation. We need you to reach our $25,000 fundraising goal.

If you use and appreciate DONA, make your DONAtion today.

For the Gift Designation, type "diatom" in the search box and select "Diatom Lab Research Fund". This is the designated fund for diatoms.org.