Stauroneis agrestis has linear valves 23-27 µm long with capitate apices. Proximal raphe ends are straight. The stauros is broad and shaped like a bow tie. Striae are strongly radiate and number near 40 in 10 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.