Diatoms of North AmericaDiatoms of North America
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Guide to Brachysira arctoborealis

Wolfe and Kling 2001

Brachysira Arctoborealis Guide
Credit: Loren Bahls
  1. Valves rhombic
  2. Valves large
  3. Striae 24-26 in 10 µm

Valves are large, rhombic and up to 48 µm long and 12 µm wide. Striae number 24-26 in 10 µm.