| [11915] Caloneis incognita | Appellations de Taxon | 11915 |
| [11916] Cyclotella iris var. cocconeiformis | Appellations de Taxon | 11916 |
| [11917] Cymbella imitans | Appellations de Taxon | 11917 |
| [11918] Cymbella inducta | Appellations de Taxon | 11918 |
| [11919] Cymbella inflexa | Appellations de Taxon | 11919 |
| [1192] Marchantia polymorpha | Appellations de Taxon | 1192 |
| [11920] Cymbella ingstadii | Appellations de Taxon | 11920 |
| [11921] Caloneis inliberalis | Appellations de Taxon | 11921 |
| [11922] Caloneis intermedia | Appellations de Taxon | 11922 |
| [11923] Cymbella ioica | Appellations de Taxon | 11923 |
| [11924] Cymbopleura incerta var. spitsbergensis | Appellations de Taxon | 11924 |
| [11925] Cymbella italica | Appellations de Taxon | 11925 |
| [11926] Cavinula intractata | Appellations de Taxon | 11926 |
| [11927] Cymbella janischi | Appellations de Taxon | 11927 |
| [11928] Cymbella japonica | Appellations de Taxon | 11928 |
| [11929] Caloneis jasminae | Appellations de Taxon | 11929 |
| [1193] Marsupella | Appellations de Taxon | 1193 |
| [11930] Cymbella javanica var. mengae | Appellations de Taxon | 11930 |
| [11931] Cyclotella kohsakaensis | Appellations de Taxon | 11931 |
| [11932] Cymbella kolbei var. kolbei | Appellations de Taxon | 11932 |
| [11933] Cymbella kappii | Appellations de Taxon | 11933 |
| [11934] Cyclotella krammeri | Appellations de Taxon | 11934 |
| [11935] Cyclotella kathmanduensis | Appellations de Taxon | 11935 |
| [11936] Cyclostephanos kyushuensis | Appellations de Taxon | 11936 |
| [11937] Chaetoceros lorenzianus | Appellations de Taxon | 11937 |
| [11938] Chamaepinnularia maragaritacea | Appellations de Taxon | 11938 |
| [11939] Chamaepinnularia mediocriformis | Appellations de Taxon | 11939 |
| [1194] Marsupella emarginata | Appellations de Taxon | 1194 |
| [11940] Chamaepinnularia minutissima | Appellations de Taxon | 11940 |
| [11941] Chamaepinnularia oculus | Appellations de Taxon | 11941 |
| [11942] Chamaepinnularia reinventa ssp. reinventa | Appellations de Taxon | 11942 |
| [11943] Chamaepinnularia rhombelliptica | Appellations de Taxon | 11943 |
| [11944] Caloneis hyalina var. robusta | Appellations de Taxon | 11944 |
| [11945] Chamaepinnularia rupicola | Appellations de Taxon | 11945 |
| [11946] Chaetoceros salsugineum | Appellations de Taxon | 11946 |
| [11947] Chamaepinnularia soehrensis var. capitata | Appellations de Taxon | 11947 |
| [11948] Chaetoceros seiracanthus | Appellations de Taxon | 11948 |
| [11949] Caloneis holstii var. tibetica | Appellations de Taxon | 11949 |
| [1195] Pelliaceae | Appellations de Taxon | 1195 |
| [11950] Chaetoceros minimus | Appellations de Taxon | 11950 |
| [11951] Chamaepinnularia tongatensis | Appellations de Taxon | 11951 |
| [11952] Chaetoceros throndsenii var. throndsenia | Appellations de Taxon | 11952 |
| [11953] Chaetoceros throndsenii var. trisetosa | Appellations de Taxon | 11953 |
| [11954] Cymbella hustedtii var. hustedtii | Appellations de Taxon | 11954 |
| [11955] Cymbopleura incertiformis var. crassipunctata | Appellations de Taxon | 11955 |
| [11956] Cymbella incurvata | Appellations de Taxon | 11956 |
| [11957] Cymbopleura inducta | Appellations de Taxon | 11957 |
| [11958] Caloneis inflata | Appellations de Taxon | 11958 |
| [11959] Cymbopleura infirma | Appellations de Taxon | 11959 |
| [1196] Pellia | Appellations de Taxon | 1196 |