| WebNameShort | |
| Epithemia zebra f. minor Frenguelli 1924 |
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| Fragilaria pinnata var. minor Frenguelli 1924 |
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| Fragilaria pinnata var. perlonga Frenguelli 1924 |
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| Gomphonema candelariae Frenguelli 1924 |
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| Gomphonema candelariae var. elliptica Frenguelli 1924 |
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| Gomphonema candelariae var. minor Frenguelli 1924 |
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| Navicula affinis f. minor Frenguelli 1924 |
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| Navicula charcotii var. magellanica Frenguelli 1924 |
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| Navicula cuspidata f. craticula Frenguelli 1924 |
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| Navicula cuspidata var. major Frenguelli 1924 |
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| Navicula expeditionis Frenguelli 1924 |
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| Navicula fuegiana Frenguelli 1924 |
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| Navicula fuegiana var. rostrata Frenguelli 1924 |
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| Navicula iridis var. dubia Frenguelli 1924 |
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| Navicula iridis f. minor Frenguelli 1924 |
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| Navicula laetvittata var. spathulata Frenguelli 1924 |
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| Navicula magellancia var. candelariae Frenguelli 1924 |
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| Navicula magellanica var. candelariae Frenguelli 1924 |
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| Navicula multicopsis var. lanceolata Frenguelli 1924 |
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| Navicula multicopsis var. linearis Frenguelli 1924 |
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