Valves are linear to linear-lanceolate, with sides parallel, except the side bearing the keel which is concave in the center. Apices rounded, nearly capitate. A distinct central nodule is present. Striae are resolvable.
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.