Nitzschia Innominata Guide
Credit: Pat Kociolek
  1. Valves linear-lanceolate, to somewhat elliptic
  2. Apices obtuse-rostrate
  3. Fibulae small, 10-11 in 10 µm
  4. Striae parallel

Valves are linear-lanceolate, to somewhat elliptic. The apices are obtuse-rostrate. Fibulae are small. Striae are parallel and fine.