Spaulding, S.,
Edlund, M.
(2009).
Chamaepinnularia.
In Diatoms of North America.
Retrieved December 14, 2025, from https://diatoms.org/genera/chamaepinnularia
Symmetric Biraphid
Chamaepinnularia
Striae composed of chamber-like areolae
Externally, areolae covered by vela
The valve margins of Chamaepinnularia are linear, nearly linear, or undulate. Cells are small, usually less than 25 µm in length and 4 µm in breadth. The striae are composed of simple, chamber-like areolae, with external openings covered by vela. Internally, the areola openings are divided with internal plates of silica. The raphe system...
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.