| WebNameShort | |
| Achnanthes linearis f. curta H.L. Smith ex Boyer 1916 |
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| Actinocyclus ellipticus var. delawarensis Boyer 1916 |
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| Actinoptychus vulgaris var. interrupta Boyer 1916 |
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| Anomoeoneis serians f. minor Boyer 1916 |
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| Brebissonia palmerii Boyer 1916 |
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| Caloneis permagna var. lewisiana Boyer 1916 |
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| Cymatopleura elliptica f. spiralis Boyer 1916 |
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| Cymbella philadelphica Boyer 1916 |
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| Cymbella rhomboidea Boyer 1916 |
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| Cymbella ventricosa sensu Boyer 1916 |
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| Dictyoneis marginata var. maxima Boyer 1916 |
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| Diploneis crabro var. pandurella sensu Boyer 1916 |
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| Diploneis excentrica Boyer 1916 |
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| Gomphonema acuminatum var. turris sensu Boyer 1916 |
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| Gomphonema brasiliense var. demerarae sensu Boyer 1916 |
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| Gyrosigma parkerii 'parkeri' var. stauroneoides (stauroneioides (Grunow in Cleve & Grunow) Boyer 1916 |
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| Gyrosigma simile (Grunow in Cleve & Grunow) Boyer 1916 |
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| Navicula brasiliensis f. constricta Boyer 1916 |
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| Navicula cyprinus (W. Smith) Boyer 1916 |
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| Navicula hasta var. punctata Boyer 1916 |
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