Diatoms of North AmericaDiatoms of North America
Return to overview

Guide to Pinnularia nodosa

(Ehrenb.) W.Sm. 1856

Pinnularia Nodosa Guide
Credit: Loren Bahls
  1. Valve margins triundulate
  2. Apices subcapitate
  3. Valve surface mottled

Pinnularia nodosa has linear valves, with triundulate margins. The apices are broad and subcapitate. The surface of the valve is mottled. The valve width ranges from 7.6 to 9.1 µm.

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.

Donate today