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Diatoms of North America
Practitioners
Morphology
Centric
Araphid
Eunotioid
Symmetric Biraphid
Monoraphid
Asymmetric Biraphid
Epithemioid
Nitzschioid
Surirelloid
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What are diatoms?
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Pinnularia_borealis_lanceolata_origimag1001.jpg
Species
Pinnularia borealis var. lanceolata
Caption
Plate 249, figs. 4-7. Pinnularia borealis var. lanceolata (Simonsen 1987).
