Bahls, L.
(2015).
Kurtkrammeria.
In Diatoms of North America.
Retrieved December 21, 2024, from https://diatoms.org/genera/kurtkrammeria
Asymmetric Biraphid
Kurtkrammeria
Valves naviculoid, slightly dorsiventral
Areolae slit-like or crescent shaped
Striae convergent at the apices
1-3 dorsal stigmata present, or stigma absent
Apical pore fields present or absent
Valves are naviculoid and slightly dorsiventral, symmetric to the transapical axis and asymmetric to the apical axis. The raphe is centrally located. Areolae in the striae are slit-like or crescent shaped and oriented with their long axes parallel to the apical axis. Transapical striae are radiate near the valve center, becoming...
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