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Guide to Navicula veneta

Kütz. 1844

Navicula Veneta Guide
Credit: Marina Potapova
  1. Valves lanceolate to linear-lanceolate, with moderately protracted apices
  2. Central area transversely rectangular or elliptic
  3. External proximal raphe ends drop-like

Valves are lanceolate to linear-lanceolate with moderately protracted apices. The central area is transversely rectangular or elliptic. The raphe is straight, with drop-like external proximal ends. The striae are slightly radiate around the center, becoming convergent at the apices. The areolae are sometimes visible under LM, approximately 35 in 10 μm.