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Navicula germainii differs from N. rostellata by lanceolate and on average slightly narrower valves. The valves of N. rostellata are more linear. The areolae are less clearly visible under LM in N. germainii than in N. rostellata.

LM scalebar = 10 µm
Gsn24379 04 1 Gs127032  Nagerm 1 Gc42397  Nagerm  Notin Circle6 Gs127032  Nagerm 4 1 Gsn24379 01 Gsn24379 02 1 Gs127032  Nagerm 2
Length Range
32-39 µm
Width Range
7.0-8.3 µm
Striae in 10 µm
13-15

Navicula rostellata

Kütz. 1844

Gs113649 1 Gsn24379 07 Gsn24379 05 Navicula rostellata LM6 Navicula rostellata LM1 Gsn24379 03 Gsn24379 06
Length Range
32-41 µm
Width Range
8.0-9.1 µm
Striae in 10 µm
12-14

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