Diatoms of North AmericaDiatoms of North America
Return to overview

Guide to Pinnularia streptoraphe

Cleve 1891

Pinnularia Streptoraphe Guide
  1. Valves linear
  2. Apices broad, rounded
  3. Central area asymmetric
  4. Raphe undulate
  5. Striae coarse

Valves are linear with parallel margins. The apices are broad and rounded. The central area is asymmetric. The raphe is complex and undulate. Striae are coarse (5 in 10 µm) and mostly parallel throughout.

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