Compare Pinnularia divergentissima var. subrostrata
Pinnularia divergentissima has obtusely rounded, subrostrate to subcapitate apices.
Pinnularia perinterrupta has larger valves and flatly rounded apices.
Pinnularia lacunicola has larger valves and slightly protracted and obtusely rounded apices.
Pinnularia divergentissima var. minor has smaller valves.
Pinnularia divergentissima var. triundulata has triundulate margins.
LM scalebar = 10 µm
Length Range
28-38 µm
28-38 µm
Width Range
5.5-6.1 µm
5.5-6.1 µm
Striae in 10 µm
12-14
12-14
Length Range
28-46 µm
28-46 µm
Width Range
5.0-7.0 µm
5.0-7.0 µm
Striae in 10 µm
12-14
12-14
Length Range
31.4-37.5 µm
31.4-37.5 µm
Width Range
6.5-7 µm
6.5-7 µm
Striae in 10 µm
12-13
12-13
Length Range
33-55 µm
33-55 µm
Width Range
6.6-10.2 µm
6.6-10.2 µm
Striae in 10 µm
11-15
11-15
