Spaulding, S.,
Edlund, M.
(2009).
Capartogramma.
In Diatoms of North America.
Retrieved December 09, 2025, from https://diatoms.org/genera/capartogramma
Symmetric Biraphid
Capartogramma
Central region X-shaped
Pseudosepta present
Axial area narrow
Striae uniseriate, punctate
Capartogramma is characterized by a very distinctive "x-shaped" thickening of silica near the central part of the valve. Frustules are generally lanceolate in valve outline. Pseudosepta are present at the valve apices. The raphe is positioned within a narrow axial area. Striae are uniseriate and punctate.
Capartogramma is monotypic in...
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