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Guide to Navicula metareichardtiana

Lange-Bert. and Kusber 2019

Navicula Reichardtiana Guide
Credit: Marina Potapova
  1. Valves lanceolate with protracted, subrostrate ends
  2. Central area small
  3. Striae radiate, bent in the center valve
  4. Striae 14-16 in 10 µm

Valves are lanceolate with protracted, subrostrate ends. The central area is small. Striae are radiate in center and convergent at the apices, 14-16 in 10 µm. Areolae number 32-36 in 10 µm and are hardly distinguishable in LM. Striae are bent in the middle of the valve. Short striae often alternate with longer ones around the central area.