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| Achnanthes exigua var. yabeana Skvortzow & Noda 1971 |
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| Achnanthes minutissima var. capitata Skvortzow & Noda 1971 |
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| Achnanthes nodeana Skvortzow in Skvortzow & Noda 1971 |
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| Achnanthes oestrupii var. nipponica Skvortzow & Noda 1971 |
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| Cyclotella comta var. parva (Skvortzow) Skvortzow 1971 |
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| Cymbella koidzumiana Skvortzow 1971 |
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| Cymbella lacustris var. nipponica Skvortzow & Noda 1971 |
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| Cymbella prostrata var. curvata Skvortzow & Noda 1971 |
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| Cymbella pseudotumida Skvortzow in Skvortzow & Noda 1971 |
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| Cymbella pseudotumida var. pseudoborealis Skvortzow & Noda 1971 |
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| Cymbella reinhardii var. nipponica Skvortzow & Noda 1971 |
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| Cymbella subalpina Skvortzow 1971 |
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| Cymbella uenoi Skvortzow 1971 |
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| Diploneis smithii f. nipponica Skvortzow & Noda 1971 |
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| Epithemia sorex var. nipponica Skvortzow & Noda 1971 |
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| Eucocconeis onegensis var. nipponica Skvortzow & Noda 1971 |
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| Eunotia flexuosa var. nipponica Skvortzow & Noda 1971 |
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| Eunotia lunaris var. nipponica Skvortzow & Noda 1971 |
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| Eunotia nipponica (Skvortzow) Skvortzow & Noda 1971 |
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| Eunotia septentrionalis var. japonica Skvortzow & Noda 1971 |
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