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| Achnanthes tylophora (Reichelt) Heiden in A. Schmidt 1903 |
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| Navicula delawarensis var. clevei Heiden in Schmidt et al. 1903 |
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| Navicula dorenbergi Reichelt in Heiden in A. Schmidt 1903 |
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| Navicula huei f. minor Heiden in Schmidt et al. 1903 |
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| Navicula huei var. minor Heiden in Schmidt et al. 1903 |
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| Navicula humerosa f. minor Heiden in A. Schmidt 1903 |
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| Navicula irrorata var. lineata Heiden in Schmidt et al. 1903 |
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| Navicula irrorata var. maculata Heiden in Schmidt et al. 1903 |
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| Navicula japonica Heiden in Schmidt et al. 1903 |
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| Navicula latissima var. elliptica Heiden in Schmidt et al. 1903 |
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| Navicula latissima var. rostrata Heiden 1903 |
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| Navicula maculata var. major Heiden in Schmidt et al. 1903 |
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| Navicula megapolitana Heiden in Schmidt et al. 1903 |
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| Navicula monilifera var. constricta Heiden in Schmidt et al. 1903 |
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| Navicula monilifera var. elliptica Heiden in A. Schmidt 1903 |
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| Navicula monilifera var. obtusa Heiden in Schmidt et al. 1903 |
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| Navicula polae Heiden in Schmidt et al. 1903 |
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| Navicula pulchella Heiden in Schmidt et al. 1903 |
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| Navicula rostochiensis (rostockiensis) Heiden in Schmidt et al. 1903 |
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| Navicula schultzei var. mexicana Heiden in Schmidt et al. 1903 |
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