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Petroneis humerosa var. minor
Variety, Diatom
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Phaeothamnion confervicolum var. britannica
Variety, Chromist
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Pinnularia abaujensis var. linearis
Variety, Diatom
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Pinnularia abaujensis var. rostrata
Variety, Diatom
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Pinnularia abaujensis var. subundulata
Variety, Diatom
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Pinnularia ambigua var. ambigua
Variety, Diatom, Marine
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Pinnularia borealis var. brevicostata
Variety, Diatom
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Pinnularia borealis var. rectangularis
Variety, Diatom
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Pinnularia borealis var. scalaris
Variety, Diatom
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Pinnularia borealis var. subislandica
Variety, Diatom
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Pinnularia borealis var. undulata
Variety, Diatom
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Pinnularia braunii var. amphicephala
Variety, Diatom
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Pinnularia brebissonii var. acuta
Variety, Diatom
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Pinnularia brebissonii var. curta
Variety, Diatom
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Pinnularia brebissonii var. diminuta
Variety, Diatom
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Pinnularia brebissonii var. linearis
Variety, Diatom
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Pinnularia brebissonii var. notata
Variety, Diatom
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Pinnularia brebissonii var. truncata
Variety, Diatom
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Pinnularia brevicostata var. triangulata
Variety, Diatom
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Pinnularia cruciformis var. faeroensis
Variety, Diatom