Compare Pinnularia nodosa
Compare
Valves of Pinnularia nodosa var. percapitata are more markedly triundulate, with more distinctly capitate apices. The central undulation of the variety is usually a bit wider than the distal undulations and valves are wider (7.7-10.6 µm). Pinnularia nodosa is distinguished from other Pinnularia species with triundulate margins by the mottled pattern in the axial and central areas.
LM scalebar = 10 µm
Length Range
40.9-65.2 µm
40.9-65.2 µm
Width Range
7.6-9.3 µm
7.6-9.3 µm
Striae in 10 µm
9-11
9-11
Pinnularia nodosa var. percapitata
Length Range
42.5-69.7 µm
42.5-69.7 µm
Width Range
7.7-10.6 µm
7.7-10.6 µm
Striae in 10 µm
10
10