Polaskey, M.,
Bishop, I.
(2018).
Grunowia.
In Diatoms of North America.
Retrieved November 21, 2024, from https://diatoms.org/genera/grunowia
Nitzschioid
Grunowia
Raphe eccentric
Striae punctate
Fibulae large
Valves have an eccentric raphe, positioned on a keel. Striae are punctate. Fibulae are large and distinct.
The genus Grunowia includes the former Nitzschia sinuata (Thwaites) Grunow and Nitzschia sinuata var. tabellaria (Grunow) Grunow.