| WebNameShort | |
| Achnanthes bongrainii (Peragallo) Frenguelli & Orlando 1958 |
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| Achnanthes bongrainii var. parallela (Peragallo) Frenguelli & Orlando 1958 |
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| Achnanthes muscorum var. elliptica Frenguelli & Orlando 1958 |
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| Achnanthes simplex (Peragallo) Frenguelli & Orlando 1958 |
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| Amphiprora lauriensis Frenguelli & Orlando 1958 |
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| Cocconeis antarctica (Van Heurck) Frenguelli & Orlando 1958 |
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| Cocconeis californica var. antarctica Frenguelli & Orlando 1958 |
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| Cocconeis debenedettii Frenguelli & Orlando 1958 |
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| Cocconeis lauriensis Frenguelli & Orlando 1958 |
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| Cocconeis melchiori Frenguelli & Orlando 1958 |
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| Cocconeis orbicularis Frenguelli & Orlando 1958 |
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| Cocconeis reticulata var. deceptionis Frenguelli & Orlando 1958 |
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| Coscinodiscus coronula Frenguelli & Orlando 1958 |
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| Coscinodiscus margaritae Frenguelli & Orlando 1958 |
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| Coscinodiscus rothii var. stelliger Frenguelli & Orlando 1958 |
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| Coscinodiscus stellaris var. antarctica Frenguelli & Orlando 1958 |
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| Coscinodiscus stellaris var. schmidtii Frenguelli & Orlando 1958 |
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| Dimeregramma (Dimerogramma) antarcticum Frenguelli & Orlando 1958 |
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| Fragilariopsis antarctica var. elliptica Frenguelli in Frenguelli & Orlando 1958 |
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| Fragilariopsis drakei Frenguelli & Orlando 1958 |
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