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Guide to Navicula symmetrica

R.M.Patrick 1944

Navicula Symmetrica Guide Copy
  1. Valves linear with narrow, rounded apices
  2. Central area asymmetric
  3. Striae fine, 12-17 in 10 µm

Valves are relatively small and linear with narrow, rounded apices. The central area is asymmetric and rounded. Striae are fine and number 12-17 in 10 µm.

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