| [28901] Pinnularia abaujensis var. lacustris | Appellations de Taxon | 28901 |
| [28902] Pinnularia appendiculata var. major | Appellations de Taxon | 28902 |
| [28903] Pinnularia bogotensis var. patagonica | Appellations de Taxon | 28903 |
| [28904] Pinnularia borealis var. undata | Appellations de Taxon | 28904 |
| [28905] Pinnularia brevicostata var. misionera | Appellations de Taxon | 28905 |
| [28906] Pinnularia brevicostata var. undulata | Appellations de Taxon | 28906 |
| [28907] Pinnularia clericii var. correntina | Appellations de Taxon | 28907 |
| [28908] Pinnularia divergens var. subcapitata | Appellations de Taxon | 28908 |
| [28909] Pinnularia gibba var. cuneocapitata | Appellations de Taxon | 28909 |
| [2891] Hydrophorus | Appellations de Taxon | 2891 |
| [28910] Pinnularia graciloides var. krasskei | Appellations de Taxon | 28910 |
| [28911] Pinnularia graciloides var. notata | Appellations de Taxon | 28911 |
| [28912] Pinnularia hartleyana var. curta | Appellations de Taxon | 28912 |
| [28913] Pinnularia hemiptera var. major | Appellations de Taxon | 28913 |
| [28914] Pinnularia hemiptera var. obtusa | Appellations de Taxon | 28914 |
| [28915] Pinnularia hemiptera var. caloneiformis | Appellations de Taxon | 28915 |
| [28916] Pinnularia latevittata var. spathulata | Appellations de Taxon | 28916 |
| [28917] Pinnularia microstauron var. adirondackensis | Appellations de Taxon | 28917 |
| [28918] Pinnularia microstauron var. lunicus | Appellations de Taxon | 28918 |
| [28919] Pinnularia microstauron var. major | Appellations de Taxon | 28919 |
| [2892] Liancalus | Appellations de Taxon | 2892 |
| [28920] Pinnularia microstauron var. tenuirostris | Appellations de Taxon | 28920 |
| [28921] Pinnularia quadratarea var. densestriata | Appellations de Taxon | 28921 |
| [28922] Pinnularia scaettae var. subrostrata | Appellations de Taxon | 28922 |
| [28923] Pinnularia streptoraphe var. subacuta | Appellations de Taxon | 28923 |
| [28924] Pinnularia stricta var. argentina | Appellations de Taxon | 28924 |
| [28925] Pinnularia tenuistriata var. rostrata | Appellations de Taxon | 28925 |
| [28926] Pleurosigma affine var. temperei | Appellations de Taxon | 28926 |
| [28927] Podosira hormoides var. adriatica | Appellations de Taxon | 28927 |
| [28928] Pseudonitzschia fossilis var. ovalis | Appellations de Taxon | 28928 |
| [28929] Pseudonitzschia pungens var. aveirensis | Appellations de Taxon | 28929 |
| [2893] Porphyrops | Appellations de Taxon | 2893 |
| [28930] Rhaphoneis surirella var. parodii | Appellations de Taxon | 28930 |
| [28931] Rhopalodia gibberula var. argentina | Appellations de Taxon | 28931 |
| [28932] Rhopalodia gibberula var. succincta | Appellations de Taxon | 28932 |
| [28933] Rhopalodia gibberula var. gravida | Appellations de Taxon | 28933 |
| [28934] Rhopalodia parallela var. distorta | Appellations de Taxon | 28934 |
| [28935] Rhopalodia parallela var. ingens | Appellations de Taxon | 28935 |
| [28936] Stauroneis anceps var. abnormis | Appellations de Taxon | 28936 |
| [28937] Stauroneis anceps var. ampliata | Appellations de Taxon | 28937 |
| [28938] Stauroneis palustris var. australis | Appellations de Taxon | 28938 |
| [28939] Stauroneis parajavanica var. mongolica | Appellations de Taxon | 28939 |
| [2894] Xiphandrium | Appellations de Taxon | 2894 |
| [28940] Stauroneis phoenicenteron var. correntina | Appellations de Taxon | 28940 |
| [28941] Stauroneis phoenicenteron var. yberiana | Appellations de Taxon | 28941 |
| [28942] Stauroneis schinzii var. argentina | Appellations de Taxon | 28942 |
| [28943] Stauroneis schinzii var. maxima | Appellations de Taxon | 28943 |
| [28944] Surirella apiculata var. panduriformis | Appellations de Taxon | 28944 |
| [28945] Surirella biseriata var. ovata | Appellations de Taxon | 28945 |
| [28947] Surirella ovata var. elliptica | Appellations de Taxon | 28947 |