Diatoms of North AmericaDiatoms of North America
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Guide to Pinnularia pulchella

(Boyer) Krammer 2000

Pinnularia pulchella guide
  1. Valves large
  2. Central valve strongly gibbous
  3. Longitudinal lines near axial area

Valves are large, with a strongly gibbous center and broadly rounded apices. A boundary of the internal alveolae openings is visible as a longitudinal line close to the axial area.