Diatoms of North AmericaDiatoms of North America
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Guide to Cymbellafalsa diluviana

(Krasske) Lange-Bert. and Metzeltin 2009

Cymbellafalsa diluviana guide
  1. Valves lanceolate
  2. Porefields present at both apices
  3. Axial area linear
  4. Asymmetry in striae at central area

Valves are lanceolate. Porefields are present at both apices, although this feature may be difficult to discern in LM. The axial area is linear. Near the center valve, the stria are less dense and there is usually a missing stria on one side.