Diatoms of North AmericaDiatoms of North America
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Guide to Pinnunavis elegans

(W.Smith) Okuno 1975

Pinnunavis elgans guide
  1. Apices produced
  2. Central area nearly rectangular
  3. Striae alveolate
  4. Striae sigmoid

Apices are produced and subrostrate. The central area is variable, but nearly rectangular. The striae are alveolate. Each stria is sigmoid.