Diatoms of North AmericaDiatoms of North America
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Guide to Brachysira chiaruccii

Cantonati, Lange-Bertalot, E.Arnaud, M.Galbiati and É.Soróczki-Pintér 2021

Brachysira chiarucci guide2
  1. Valves weakly heteropolar
  2. Apices acutely rounded to weakly produced
  3. Striae discernable in LM

This taxon is weakly heteropolar; the headpole is acutely rounded and the footpole is weakly produced. Stria and areolae are readily visible in LM. Striae are radiate. Valve margins are weakly convex.