Diatoms of North AmericaDiatoms of North America
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Compare Pinnularia saprophila

Lange-Bert., H.Kobayasi and Krammer 2000

Compare

Pinnularia interruptiformis has a higher stria density and straight margins. Pinnularia marchica has a higher stria density, less capitate apices and more divergent striae. Pinnularia rumrichae has more strongly capitate and elongated valve apices.

Pinnularia subangelica is more broad, with a higher stria density.

LM scalebar = 10 µm
Pinnularia saprophila LM1 Pinnularia saprophila LM2 Pinnularia saprophila LM3 Pinnularia saprophila LM4 Pinnularia saprophila LM5 Pinnularia saprophila LM6 Pinnularia saprophila LM7
Length Range
22-45 µm
Width Range
5.2-6.7 µm
Striae in 10 µm
10-12

Pinnularia marchica

Schönfelder in Krammer 2000

Pinnularia marchica LM1 Pinnularia marchica LM2 Pinnularia marchica LM3 Pinnularia marchica LM4 Pinnularia marchica LM5 Pinnularia marchica LM6 Pinnularia marchica LM7
Length Range
11-20 µm
Width Range
4-5 µm
Striae in 10 µm
10-13

Pinnularia subanglica

Krammer 2000

Pinnularia subanglica ANSP GC57554 07 Pinnularia subanglica ANSP GC57554 06 Pinnularia subanglica ANSP GC57554 05 Pinnularia subanglica ANSP GC57554 04 Pinnularia subanglica ANSP GC57554 03 Pinnularia subanglica ANSP GC57554 01 Pinnularia subanglica ANSP GC57554 02
Length Range
27.9-39.9 µm
Width Range
6.3-7.7 µm
Striae in 10 µm
11-14

Also compare to

Pinnularia rumrichae

Krammer

Pinnularia interruptiformis

Krammer