| [13859] Gomphonema fereformosum | Appellations de Taxon | 13859 |
| [1386] Equisetum maximum | Appellations de Taxon | 1386 |
| [13860] Gyrosigma fogedii | Appellations de Taxon | 13860 |
| [13861] Gomphonema forte | Appellations de Taxon | 13861 |
| [13862] Gyrosigma foxtonia | Appellations de Taxon | 13862 |
| [13863] Gomphonema frigidum | Appellations de Taxon | 13863 |
| [13864] Gomphonema frickei | Appellations de Taxon | 13864 |
| [13865] Gomphonema designatum | Appellations de Taxon | 13865 |
| [13866] Gyrosigma diaphanum | Appellations de Taxon | 13866 |
| [13867] Gomphonema dintara | Appellations de Taxon | 13867 |
| [13868] Gyrosigma distortum | Appellations de Taxon | 13868 |
| [13869] Geissleria dolomitica | Appellations de Taxon | 13869 |
| [1387] Equisetum palustre | Appellations de Taxon | 1387 |
| [13870] Gomphonema drouetii | Appellations de Taxon | 13870 |
| [13871] Gomphonema drutelingense | Appellations de Taxon | 13871 |
| [13872] Gomphoneis elegans | Appellations de Taxon | 13872 |
| [13873] Gomphonema elegantissimum | Appellations de Taxon | 13873 |
| [13874] Gladiopsis ellipsoidea | Appellations de Taxon | 13874 |
| [13875] Germainiella enigmatica | Appellations de Taxon | 13875 |
| [13876] Germainiella enigmaticoides | Appellations de Taxon | 13876 |
| [13877] Gomphonema entolejum | Appellations de Taxon | 13877 |
| [13878] Gomphoneis eriense var. variabilis | Appellations de Taxon | 13878 |
| [13879] Gyrosigma exilis | Appellations de Taxon | 13879 |
| [1388] Lycopodiaceae | Appellations de Taxon | 1388 |
| [13880] Gomphonema extentum | Appellations de Taxon | 13880 |
| [13881] Gyrosigma exoticumoides | Appellations de Taxon | 13881 |
| [13882] Gomphonema fonticolum | Appellations de Taxon | 13882 |
| [13883] Gomphonema gracile var. acutiuscula | Appellations de Taxon | 13883 |
| [13884] Gomphonema gallaudii | Appellations de Taxon | 13884 |
| [13885] Gomphonema garciae | Appellations de Taxon | 13885 |
| [13886] Gomphonema gibberum | Appellations de Taxon | 13886 |
| [13887] Gomphonema gracile var. clavicula | Appellations de Taxon | 13887 |
| [13888] Gomphonema gracile var. cymbelloides | Appellations de Taxon | 13888 |
| [13889] Gomphonema geisslerae | Appellations de Taxon | 13889 |
| [13890] Gomphonema globiferum | Appellations de Taxon | 13890 |
| [13891] Gomphonema grasmueckii | Appellations de Taxon | 13891 |
| [13892] Gomphonema gracile var. naviculoides | Appellations de Taxon | 13892 |
| [13893] Gyrosigma gondwana | Appellations de Taxon | 13893 |
| [13894] Gomphonema gracile abnormal form | Appellations de Taxon | 13894 |
| [13895] Gomphonema gracile var. subcapitata | Appellations de Taxon | 13895 |
| [13896] Gomphonema hasta | Appellations de Taxon | 13896 |
| [13897] Gomphonema hawaiiense | Appellations de Taxon | 13897 |
| [13898] Gomphoneis herculeana var. clavata | Appellations de Taxon | 13898 |
| [13899] Gomphonema hedinii | Appellations de Taxon | 13899 |
| [139] Isogenus nubecula | Appellations de Taxon | 139 |
| [1390] Lepidotis inundata | Appellations de Taxon | 1390 |
| [13900] Gomphoneis herculeana var. herculeana | Appellations de Taxon | 13900 |
| [13902] Gomphonema huebeneri | Appellations de Taxon | 13902 |
| [13903] Gyrosigma hummii | Appellations de Taxon | 13903 |
| [13904] Gomphonema hustedtii | Appellations de Taxon | 13904 |