Diatoms of North AmericaDiatoms of North America
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Compare Pinnularia brebissonii

(Kütz.) Rabenh. 1864

Compare

Pinnularia microstauron (and its varieties) and P. marchia have linear valves, with distinctly subrostrate apices.

Pinnularia rhombarea has linear valves, with slightly subrostrate apices.

Pinnularia suchlandtii has linear to linear-lanceolate valves.

LM scalebar = 10 µm
Pinnularia brebissonii LM7 Pinnularia brebissonii LM6 Pinnularia brebissonii LM5 Pinnularia brebissonii LM4 Pinnularia brebissonii LM3 Pinnularia brebissonii LM2 Pinnularia brebissonii LM1
Length Range
19.7-57.2 µm
Width Range
7.3-10.9 µm
Striae in 10 µm
10-13

Pinnularia microstauron

(Ehrenb.) Cleve 1891

Pinnularia microstauron LM7 Pinnularia microstauron LM6 Pinnularia microstauron LM4 Pinnularia microstauron LM3 Pinnularia microstauron LM2 Pinnularia microstauron LM1
Length Range
27.7-81.3 µm
Width Range
7.2-12.2 µm
Striae in 10 µm
9-11

Pinnularia rhombarea

Krammer in Metzeltin and Lange-Bert. 1998

Pinnularia rhombarea LM7 Pinnularia rhombarea LM6 Pinnularia rhombarea LM5 Pinnularia rhombarea LM4 Pinnularia rhombarea LM3 Pinnularia rhombarea LM2 Pinnularia rhombarea LM1
Length Range
44.9-74.5 µm
Width Range
10.2-12.5 µm
Striae in 10 µm
9-11

Pinnularia suchlandtii

Hust. 1943

Pinnularia suchlandtii LM1 Pinnularia suchlandtii LM2 Pinnularia suchlandtii LM7 Pinnularia suchlandtii LM3 Pinnularia suchlandtii LM4 Pinnularia suchlandtii LM5 Pinnularia suchlandtii LM6
Length Range
54.0-75.4 µm
Width Range
11.8-16.7 µm
Striae in 10 µm
10-11