| [13951] Gomphonema lange-bertalotii | Appellations de Taxon | 13951 |
| [13952] Gomphonema lanceolatum var. brevistriata | Appellations de Taxon | 13952 |
| [13953] Gomphonema lanceolatum var. capitata | Appellations de Taxon | 13953 |
| [13954] Gladiopsis antarctica | Appellations de Taxon | 13954 |
| [13955] Gyrosigma limosum | Appellations de Taxon | 13955 |
| [13956] Gomphoneis linearis | Appellations de Taxon | 13956 |
| [13957] Gomphonema lippertii | Appellations de Taxon | 13957 |
| [13958] Gomphonemopsis lindae | Appellations de Taxon | 13958 |
| [13959] Gomphonema longiceps f. cuneata | Appellations de Taxon | 13959 |
| [1396] Ophioglossaceae | Appellations de Taxon | 1396 |
| [13960] Gomphonema leptoproductum | Appellations de Taxon | 13960 |
| [13961] Gomphonema leptocampum | Appellations de Taxon | 13961 |
| [13962] Gomphonema montanum var. acuminata | Appellations de Taxon | 13962 |
| [13963] Gomphonema micropus var. aequale | Appellations de Taxon | 13963 |
| [13964] Gomphoneis magna | Appellations de Taxon | 13964 |
| [13965] Gomphonema maejoensis | Appellations de Taxon | 13965 |
| [13966] Gomphonema makarovae | Appellations de Taxon | 13966 |
| [13967] Gomphonema malayense | Appellations de Taxon | 13967 |
| [13968] Gomphoneis mamilla | Appellations de Taxon | 13968 |
| [13969] Gomphonema manguinii | Appellations de Taxon | 13969 |
| [1397] Botrichium | Appellations de Taxon | 1397 |
| [13970] Gomphonema kilhamii | Appellations de Taxon | 13970 |
| [13971] Gomphonema kinokawaensis | Appellations de Taxon | 13971 |
| [13972] Gomphonema kobayashiae | Appellations de Taxon | 13972 |
| [13973] Gomphonema krammeri | Appellations de Taxon | 13973 |
| [13974] Geissleria kriegeri | Appellations de Taxon | 13974 |
| [13975] Gomphonema kazachstanicum | Appellations de Taxon | 13975 |
| [13976] Gomphonema lanceolatum var. acutiuscula | Appellations de Taxon | 13976 |
| [13977] Glyphodesmis distans | Appellations de Taxon | 13977 |
| [13978] Gomphonema lingulatum var. elongatum | Appellations de Taxon | 13978 |
| [13979] Gomphonema lepidum | Appellations de Taxon | 13979 |
| [1398] Botrichium lunaria | Appellations de Taxon | 1398 |
| [13980] Glyphodesmis eximia | Appellations de Taxon | 13980 |
| [13981] Gomphonema lagenula abnormal form | Appellations de Taxon | 13981 |
| [13982] Gomphonema longilineare | Appellations de Taxon | 13982 |
| [13983] Gomphonema lagenula | Appellations de Taxon | 13983 |
| [13984] Gomphonema lingulatum | Appellations de Taxon | 13984 |
| [13985] Gladiopsis speciosa | Appellations de Taxon | 13985 |
| [13986] Gomphonema latistigmata | Appellations de Taxon | 13986 |
| [13987] Gomphonema laticollum | Appellations de Taxon | 13987 |
| [13988] Gomphonema latipes | Appellations de Taxon | 13988 |
| [13989] Gomphonema lujanense | Appellations de Taxon | 13989 |
| [1399] Ophioglossum | Appellations de Taxon | 1399 |
| [13990] Gomphonema lacus-victoriensis | Appellations de Taxon | 13990 |
| [13991] Gomphonema lacus-vulcani | Appellations de Taxon | 13991 |
| [13992] Gomphonema micropus morphotyp aequalidictum | Appellations de Taxon | 13992 |
| [13993] Gomphonema martinii | Appellations de Taxon | 13993 |
| [13994] Geissleria mascarenensis | Appellations de Taxon | 13994 |
| [13995] Gomphoneis minuta var. cassieae | Appellations de Taxon | 13995 |
| [13996] Gyrosigma macedonicum | Appellations de Taxon | 13996 |