Cymbella Hustedtii Guide
Credit: Loren Bahls
  1. Valves <9 µm wide
  2. Striae 12-16 in 10 µm

Valves are less than 9 µm wide. Striae number 12-16 in 10 µm and areolae number 24-28 in 10 µm. Valves lack a stigma.