| [16940] Pinnularia confirma var. essequiboensis | Appellations de Taxon | 16940 |
| [16941] Psammothidium confusum var. atomoides | Appellations de Taxon | 16941 |
| [16942] Pinnularia clericii | Appellations de Taxon | 16942 |
| [16943] Pinnularia clevei var. clevei | Appellations de Taxon | 16943 |
| [16944] Pinnularia claviculiformis | Appellations de Taxon | 16944 |
| [16945] Pinnularia cuneatiformis | Appellations de Taxon | 16945 |
| [16946] Proboscia curvirostris | Appellations de Taxon | 16946 |
| [16947] Pinnularia curticostata | Appellations de Taxon | 16947 |
| [16948] Pinnularia cymatopleura | Appellations de Taxon | 16948 |
| [16949] Pseudonitzschia americana | Appellations de Taxon | 16949 |
| [1695] Callitrichaceae | Appellations de Taxon | 1695 |
| [16950] Pinnularia divergentissima var. ardnamurchan | Appellations de Taxon | 16950 |
| [16951] Planothidium daui | Appellations de Taxon | 16951 |
| [16952] Pinnularia divergens var. bacillaris | Appellations de Taxon | 16952 |
| [16953] Pinnularia divergens var. biconstricta | Appellations de Taxon | 16953 |
| [16954] Placoneis constans | Appellations de Taxon | 16954 |
| [16955] Placoneis conveniens | Appellations de Taxon | 16955 |
| [16956] Parlibellus coxiae | Appellations de Taxon | 16956 |
| [16957] Placoneis parunculus | Appellations de Taxon | 16957 |
| [16958] Proschkinia complanatoides | Appellations de Taxon | 16958 |
| [16959] Paralia capitata | Appellations de Taxon | 16959 |
| [1696] Callitriche | Appellations de Taxon | 1696 |
| [16960] Parlibellus crucicula | Appellations de Taxon | 16960 |
| [16961] Pinnularia cruxarea | Appellations de Taxon | 16961 |
| [16962] Pliocaenicus costatus var. sibiricus | Appellations de Taxon | 16962 |
| [16963] Placoneis subclementis | Appellations de Taxon | 16963 |
| [16964] Placoneis subplacentula | Appellations de Taxon | 16964 |
| [16965] Pinnularia curtistriata | Appellations de Taxon | 16965 |
| [16967] Pinnularia clevei var. angusta | Appellations de Taxon | 16967 |
| [16968] Pinnularia cleveiformis var. cleveiformis | Appellations de Taxon | 16968 |
| [16969] Pinnularia cleveiformis var. ventricosa | Appellations de Taxon | 16969 |
| [1697] Callitriche brutia | Appellations de Taxon | 1697 |
| [16970] Pinnularia cleveiformis var. cleveiformis | Appellations de Taxon | 16970 |
| [16972] Pinnularia divergentissima var. subacuta | Appellations de Taxon | 16972 |
| [16973] Pinnularia divergens var. subbacillaris | Appellations de Taxon | 16973 |
| [16974] Pinnularia discrepantia | Appellations de Taxon | 16974 |
| [16975] Pseudonitzschia seriata | Appellations de Taxon | 16975 |
| [16976] Pinnularia decrescens | Appellations de Taxon | 16976 |
| [16977] Planothidium cyclophorum | Appellations de Taxon | 16977 |
| [16978] Pinnularia dubitabilis var. minor | Appellations de Taxon | 16978 |
| [16979] Pseudostaurosira brevistriata var. trigibba | Appellations de Taxon | 16979 |
| [16980] Pinnularia discifera | Appellations de Taxon | 16980 |
| [16981] Pseudostaurosira clavatum | Appellations de Taxon | 16981 |
| [16982] Pseudo-nitzschia cuspidata | Appellations de Taxon | 16982 |
| [16983] Pseudencyonema rossii | Appellations de Taxon | 16983 |
| [16984] Pinnularia divergens var. decrescens | Appellations de Taxon | 16984 |
| [16985] Pinnularia divergentissima var. subrostrata | Appellations de Taxon | 16985 |
| [16986] Pinnularia divergentissima var. undulata | Appellations de Taxon | 16986 |
| [16987] Pseudo-nitzschia heimii | Appellations de Taxon | 16987 |
| [16988] Pinnularia diandae | Appellations de Taxon | 16988 |