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| Cyclotella glabriuscula (Grunow) Håkansson 1988 |
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| Cyclotella radiosa var. arverna (Peragallo & Brun) Håkansson 1988 |
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| Cyclotella radiosa var. decrescens (Héribaud) Håkansson 1988 |
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| Cyclotella radiosa f. evidenterpunctata (Mayer) Håkansson 1988 |
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| Cyclotella radiosa var. lucida (Meister) Håkansson 1988 |
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| Cyclotella radiosa var. paucipunctata (Grunow) Håkansson 1988 |
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| Cyclotella radiosa var. pliocaenica (Krasske) Håkansson 1988 |
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| Cyclotella radiosa var. quadrinotata (Héribaud) Håkansson 1988 |
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| Cyclotella radiosa var. quinquenotata (Héribaud) Håkansson 1988 |
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| Cyclotella radiosa var. spectabilis (Cleve-Euler) Håkansson 1988 |
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| Cyclotella radiosa var. tenuis (Fricke) Håkansson 1988 |
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| Cyclotella radiosa var. trinotata (Heribaud) Håkansson 1988 |
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| Cyclotella radiosa var. unipunctata (Fricke) Håkansson 1988 |
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