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| Navicula rectangularis var. undulata Grunow in Cleve & Möller 1882 |
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| Navicula serians var. amphipleuroides Grunow in Cleve & Möller 1882 |
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| Navicula subinflata Grunow in Cleve & Möller 1882 |
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| Navicula vegae var. subconstricta Grunow in Cleve & Möller 1882 |
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| Nitzschia brebissoni (brebissonii) var. borealis Grunow in Cleve & Möller 1882 |
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| Nitzschia laevissima (levissima) Grunow in Cleve & Möller 1882 |
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| Nitzschia obtusa f. minor Grunow in Cleve & Möller 1882 |
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| Nitzschia polaris Grunow in Cleve & Möller 1882 |
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| Nitzschia pungens Grunow in Cleve & Möller 1882 |
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| Plagiogramma floridianum (floridianus) Grunow in Cleve & Möller 1882 |
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| Pleurosigma acutum var. australicum (australasica) Grunow in Cleve & Möller 1882 |
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| Pleurosigma clevei var. sibirica Grunow in Cleve & Möller 1882 |
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| Pleurosigma stuxbergii var. hyperborea Grunow in Cleve & Möller 1882 |
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| Podosira hormoides var. dicentra Grunow in Cleve & Möller 1882 |
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| Rhoiconeis (Rhoikoneis) bolleana var. siberica Grunow in Cleve & Möller 1882 |
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| Schizonema comoides var. antillarum Grunow in Cleve & Möller 1882 |
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| Surirella rattrayi f. minor Grunow in Cleve & Möller 1882 |
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| Surirella (Suriraya) arcta var. macra Grunow in Cleve & Möller 1882 |
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| Synedra acus var. tenuissima Grunow in Cleve & Möller 1882 |
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| Synedra investiens var. hyperborea Grunow in Cleve & Möller 1882 |
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