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Guide to Cocconeis fluviatilis

J.H.Wallace 1960

Cocconeis Fluviatilis Guide
Credit: Marina Potapova
  1. Striae 12-13 in 10 µm
  2. Areolae larger near margin
  3. Raphe valve with hyaline ring

Striae are relatively coarse, numbering 12-13 in 10 µm. The areolae are larger near the valve margin. The raphe valve has a marginal, hyaline ring.