Diatoms of North AmericaDiatoms of North America
Return to overview

Guide to Navicula notha

J.H.Wallace 1960

Navicula Notha Guide
Credit: Marina Potapova
  1. Valve lanceolate to linear-lanceolate
  2. Central area small
  3. Proximal raphe ends deflected to primary side
  4. Striae radiate and bent at center
  5. Striae convergent at apices

Valves are lanceolate to linear-lanceolate with slightly drawn-out ends. Valves are 4.1-5.5 μm wide. Axial area is narrow, central area is small, rhomboid to elliptical. Proximal raphe ends are noticeably deflected to the primary side. Striae are radiate and bent at valve center, convergent at apices, 14-17 in 10 μm. There are 36-40 lineolae 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.

Donate today