| WebNameShort | |
| Surirella norica f. alpine Brun 1880 |
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| Surirella norica var. costata (W. Smith) Brun 1880 |
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| Surirella ovata var. minuta (Brébisson) Brun 1880 |
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| Surirella ovata var. pinnata (W. Smith) Brun 1880 |
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| Surirella (Suriraya) biseriata var. linearis Brun 1880 |
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| Syndera ulna var. longissima (W. Smith) Brun 1880 |
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| Synedra acus var. oxyrhynchus (Kützing) Brun 1880 |
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| Synedra acuta var. oxyrhynchus (Kützing) Brun 1880 |
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| Synedra gracilis Brun 1880 |
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| Synedra lunaris var. bilunaris Brun 1880 |
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| Synedra tenuis var. subtilis (Kützing) Brun 1880 |
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| Synedra ulna var. aequalis (Kützing) Brun 1880 |
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| Synedra ulna var. bilunaris (Ehrenberg; Ehrenberg) Brun 1880 |
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| Synedra ulna var. splendens Brun 1880 |
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| Synedra vaucheriae var. fasciculata (Kützing) Brun 1880 |
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| Synedra vaucheriae var. minutissima (Kützing) Brun 1880 |
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| Tryblionella angustata var. acuminata Brun 1880 |
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