Stauroneis Lauenburgiana Guide
Credit: Loren Bahls
  1. Valves linear to linear-elliptic
  2. Areolae coarse
  3. Areolae form longitudinal lines along axial area
  4. Pseudosepta present

Stauroneis lauenburgiana has linear to linear-elliptic valves less than 50 ┬Ám long. Shallow pseudosepta are present. Areolae are coarse, transversely oblong and irregularly spaced. Areolae form an uninterrupted longitudinal line along each side of the axial area.