Diatoms of North AmericaDiatoms of North America
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Guide to Pinnularia pseudoparva

Krammer and Lange-Bert. 1999

Pinnularia pseudoparva guide
  1. Valves linear
  2. Apices bluntly rounded, subcapitate
  3. Proximal raphe ends deflected
  4. Axial area moderately broad

Valves linear-elliptic, with rounded, subcapitate apices. Proximal raphe ends are laterally deflected. The axial area is moderately broad.