Diatoms of North AmericaDiatoms of North America
Return to overview

Guide to Thalassiosira weissflogii

(Grunow) G.A.Fryxell and Hasle 1977

Thalassiosira Weisflogii Guide
Credit: Pat Kociolek
  1. Valves flat
  2. Areolae fine
  3. Prominent rimoportula on valve margin

Valves are flat, with short mantles. Areolae are fine. A single, prominent rimoportula is present on the valve margin.

Diatoms of North America relies on the financial support of our user community. We aim to build our technical content by engaging diatomists at all levels and training the next generation. We need you to reach our 2025 fundraising goal of $25,000.

If you use and appreciate DONA, make your DONAtion today.

Give to diatoms.org