Compare Pinnularia pluvianiformis
Compare
Pinnularia grunowii has a larger axial area, larger capitate ends, and broader valves.
Pinnularia pluviana has lower stria density and broader valves.
Pinnularia pisciculus has less undulate sides and more protracted apices.
Pinnularia turbulenta has more distinct undulate sides and a broader transverse fascia.
LM scalebar = 10 µm
Length Range
24-28 µm
24-28 µm
Width Range
5.6-5.9 µm
5.6-5.9 µm
Striae in 10 µm
13-14
13-14