Valves elliptic, with rounded poles. Striae are composed of distinct areolae. A small, distinct lyre-shaped hyaline area is present on either side of the axial area. An asymmetric central area is bordered by variable central striae.
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.