Diatoms of North AmericaDiatoms of North America
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Guide to Diploneis calcicolafrequens

Lange-Bert. and Fuhrmann 2020

Diploneis calcicolafrequens guide2
  1. Valves oblong-elliptic
  2. Central area small
  3. Striae uniseriate
  4. Longitudinal canals narrow

Valves are oval to elliptic. The central area is small. Striae are coarse and uniseriate, 11-14 in 10 µm. Longitudinal canals are narrow and uniseriate.