Navicula Leptostriata Guide
Credit: Loren Bahls
  1. Valves narrowly lanceolate
  2. Central area small
  3. Proximal raphe ends close together
  4. Striae curved, radiate near center
  5. Striae convergent at apices

Navicula leptostriata has narrowly lanceolate valves with a small central area. Proximal raphe ends are deflected to the primary side and are positioned close to one another. Striae are 18-20 in 10 µm, curved and radiate at the valve center and convergent at the apices.