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| Glyphodesmis williamsonii (W. Smith) Grunow in Van Heurck 1881 |
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| Licmophora ehrenbergii var. ovata (W. Smith) Grunow in Van Heurck 1881 |
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| Nitzschia levidensis (W. Smith) Grunow in Van Heurck 1881 |
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| Nitzschia tenuis (W. Smith) Grunow in Van Heurck 1881 |
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| Pseudo-eunotia doliolus (Wallich) Grunow in Van Heurck 1881 |
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| Synedra affinis var. obtusa Arnott ex Van Heurck 1881 |
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| Eunotia rabenhorstii Cleve & Grunow in Van Heurck 1881 |
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| Eunotia rabenhorstii var. monodon Cleve & Grunow in Van Heurck 1881 |
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| Eunotia rabenhorstii var. triodon Cleve & Grunow in Van Heurck 1881 |
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| Thalassiothrix longissima var. antarctica Cleve & Grunow in Van Heurck 1881 |
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| Licmophora juergensii var. dubia formae longiores & brevissimae, Grunow in Van Heurck 1881 |
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| Eunotia incisa Gregory ex Grunow in Van Heurck 1881 |
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| Synedra rumpens f. major Grunow in Van Heruck 1881 |
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| Actinella brasiliensis Grunow in Van Heurck 1881 |
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| Actinella guianensis Grunow in Van Heurck 1881 |
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| Actinella mirabilis Grunow in Van Heurck 1881 |
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| Ardissonea crystallina var. smithii Grunow in Van Heurck 1881 |
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| Asterionella formosa var. inflata Grunow in Van Heurck 1881 |
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| Asterionella formosa var. subtilis Grunow in Van Heurck 1881 |
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| Asterionella formosa var. subtilissima Grunow in Van Heurck 1881 |
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