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Pinnularia viridis var. intermedia
Variety, Diatom
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Pinnularia viridis var. mayeri
Variety, Diatom
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Placoneis clementis var. linearis
Variety, Diatom
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Placoneis elginensis var. cuneata
Variety, Diatom
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Placoneis elginensis var. neglecta
Variety, Diatom
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Placoneis elginensis var. rostrata
Variety, Diatom
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Placoneis elginensis var. undulata
Variety, Diatom
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Placoneis exigua var. signata
Variety, Diatom
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Placoneis gastrum var. signata
Variety, Diatom
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Placoneis placentula var. apiculata
Variety, Diatom
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Placoneis placentula var. jenisseyensis
Variety, Diatom
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Placoneis placentula var. latiuscula
Variety, Diatom
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Placoneis placentula var. maculata
Variety, Diatom
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Placoneis porifera var. opportuna
Variety, Diatom
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Placoneis pseudanglica var. signata
Variety, Diatom
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Plagiogramma brockmanni var. brockmanni
Variety, Diatom, Marine
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Planothidium haynaldii var. elliptico-lanceolata
Variety, Diatom
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Pleurosigma angulatum var. quadratum
Variety, Diatom
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Psammodictyon panduriforme var. minor
Variety, Diatom
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Pseudostaurosira brevistriata var. inflata
Variety, Diatom