| [14961] Navicula applicita | Appellations de Taxon | 14961 |
| [14962] Navicula approximata f. morei | Appellations de Taxon | 14962 |
| [14963] Navicula applanata | Appellations de Taxon | 14963 |
| [14964] Navicula applicitoides | Appellations de Taxon | 14964 |
| [14965] Navicula approximatoides | Appellations de Taxon | 14965 |
| [14966] Navicula approximatella | Appellations de Taxon | 14966 |
| [14968] Navicula arabica | Appellations de Taxon | 14968 |
| [14969] Navicula arenaria var. rostellata | Appellations de Taxon | 14969 |
| [1497] Cyperus esculentus | Appellations de Taxon | 1497 |
| [14970] Navicula aurora | Appellations de Taxon | 14970 |
| [14971] Navicula aspersa | Appellations de Taxon | 14971 |
| [14972] Navicula arata | Appellations de Taxon | 14972 |
| [14973] Neidium arenarzense | Appellations de Taxon | 14973 |
| [14974] Nitzschia acuminata var. subconstricta | Appellations de Taxon | 14974 |
| [14975] Navicula subdelicata | Appellations de Taxon | 14975 |
| [14976] Nitzschia amphibia abnormal form | Appellations de Taxon | 14976 |
| [14977] Navicula acuticuneatula | Appellations de Taxon | 14977 |
| [14978] Navicula aestimata | Appellations de Taxon | 14978 |
| [14979] Navicula apsteinii | Appellations de Taxon | 14979 |
| [1498] Cyperus flavescens | Appellations de Taxon | 1498 |
| [14980] Navicula altiplanensis | Appellations de Taxon | 14980 |
| [14981] Navicula anatis | Appellations de Taxon | 14981 |
| [14982] Navicula arctotenelloides | Appellations de Taxon | 14982 |
| [14983] Navicula bryophila var. aqueductae | Appellations de Taxon | 14983 |
| [14984] Nitzschia bartholomei | Appellations de Taxon | 14984 |
| [14985] Navicula bacillum f. trinodis | Appellations de Taxon | 14985 |
| [14986] Navicula bauemleri | Appellations de Taxon | 14986 |
| [14987] Navicula bulnheimii var. belgica | Appellations de Taxon | 14987 |
| [14988] Navicula barberiana | Appellations de Taxon | 14988 |
| [14989] Navicula barbarica var. robusta | Appellations de Taxon | 14989 |
| [1499] Cyperus fuscus | Appellations de Taxon | 1499 |
| [14990] Navicula bergenensis | Appellations de Taxon | 14990 |
| [14991] Navicula besarensis | Appellations de Taxon | 14991 |
| [14992] Navicula beta | Appellations de Taxon | 14992 |
| [14993] Nitzschia bicapitata var. faeroensis | Appellations de Taxon | 14993 |
| [14994] Nitzschia bacillariaeformis | Appellations de Taxon | 14994 |
| [14995] Neidium bigibborum | Appellations de Taxon | 14995 |
| [14996] Nitzschia brightwellii | Appellations de Taxon | 14996 |
| [14997] Navicula bicephala | Appellations de Taxon | 14997 |
| [14998] Neidium bisulcatum f. undulata | Appellations de Taxon | 14998 |
| [14999] Navicula bjoernoeyaensis | Appellations de Taxon | 14999 |
| [15] Taeniopteryx auberti | Appellations de Taxon | 15 |
| [150] Perlodes | Appellations de Taxon | 150 |
| [1500] Cyperus longus | Appellations de Taxon | 1500 |
| [15000] Navicula biskanterae | Appellations de Taxon | 15000 |
| [15001] Navicula bacillum f. lanceolata | Appellations de Taxon | 15001 |
| [15002] Nitzschia bacata f. linearis | Appellations de Taxon | 15002 |
| [15003] Nitzschia blankaartensis | Appellations de Taxon | 15003 |
| [15004] Nitzschia boliviana | Appellations de Taxon | 15004 |
| [15005] Nitzschia bosumtwiensis | Appellations de Taxon | 15005 |