Spaulding, S.,
Edlund, M.
(2009).
Chamaepinnularia.
In Diatoms of North America.
Retrieved May 01, 2026, from https://diatoms.org/genera/chamaepinnularia?x-craft-preview=cab8b13ef68d1e257235fd2491770f51dfe0c9a6c0ad3b95411776e5316d603alxhbyabypv
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...