Compare Pinnularia saprophila
Pinnularia interruptiformis has a higher stria density and straight margins. Pinnularia marchica has a higher stria density, less capitate apices and more divergent striae. Pinnularia rumrichae has more strongly capitate and elongated valve apices.
Pinnularia subangelica is more broad, with a higher stria density.
LM scalebar = 10 µm
Length Range
22-45 µm
22-45 µm
Width Range
5.2-6.7 µm
5.2-6.7 µm
Striae in 10 µm
10-12
10-12
Length Range
11-20 µm
11-20 µm
Width Range
4-5 µm
4-5 µm
Striae in 10 µm
10-13
10-13
Length Range
27.9-39.9 µm
27.9-39.9 µm
Width Range
6.3-7.7 µm
6.3-7.7 µm
Striae in 10 µm
11-14
11-14
