Diatoms of North AmericaDiatoms of North America
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Guide to Nitzschia siliqua

R.E.M.Archibald 1966

Nitzschia siliqua guide2
  1. Valves linear
  2. Apices small, knob-like
  3. Striae composed of distinct areolae

Valves are linear and small. Apices are small and knob-like. A longitudinal fold extends the length of the valve. Fibulae are aligned with the striae. Striae are composed of distinct, squarish areolae.