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Compare Pinnularia rexlowei

Potapova, Kersey and Aycock 2023

Compare

Pinnularia alabamae is has a similar valve outline, but is much greater in size.

Pinnularia gentilis differs by wider valves, rounded apices, strongly convergent striae at the valve ends, and absence of spines.

LM scalebar = 10 µm
Pinnularia rexlowei LM1 Pinnularia rexlowei LM5 Pinnularia rexlowei LM2 Pinnularia rexlowei LM3 Pinnularia rexlowei LM4 Pinnularia rexlowei LM6
Length Range
135–188 µm
Width Range
18–23 µm
Striae in 10 µm
7-8

Pinnularia alabamae

Krammer 2000

Pinnularia alabamae LM5 Pinnularia alabamae LM4 Pinnularia alabamae LM1 Pinnularia alabamae LM7 Pinnularia alabamae LM2 Pinnularia alabamae LM3 Pinnularia alabamae LM6
Length Range
180-370 µm
Width Range
32-48 µm
Striae in 10 µm
5-6

Also compare to

Pinnularia gentilis

(Donkin) Cleve

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