| [1832] Myrica gale | Appellations de Taxon | 1832 |
| [18320] Synedra grandis | Appellations de Taxon | 18320 |
| [18321] Sellaphora gregoryana | Appellations de Taxon | 18321 |
| [18322] Stauroneis gremmenii | Appellations de Taxon | 18322 |
| [18323] Sellaphora garciarodriguezii | Appellations de Taxon | 18323 |
| [18324] Surirella guatimalensis | Appellations de Taxon | 18324 |
| [18325] Shionodiscus bioculatus | Appellations de Taxon | 18325 |
| [18326] Shionodiscus biporus | Appellations de Taxon | 18326 |
| [18327] Shionodiscus centrus | Appellations de Taxon | 18327 |
| [18328] Shionodiscus confusa | Appellations de Taxon | 18328 |
| [18329] Surirella horrida f. constricta | Appellations de Taxon | 18329 |
| [1833] Najadaceae | Appellations de Taxon | 1833 |
| [18330] Shionodiscus depressus | Appellations de Taxon | 18330 |
| [18331] Stoschiella hebetata | Appellations de Taxon | 18331 |
| [18332] Shionodiscus gracilis | Appellations de Taxon | 18332 |
| [18333] Surirella hispida | Appellations de Taxon | 18333 |
| [18334] Shionodiscus latimarginatus | Appellations de Taxon | 18334 |
| [18335] Surirella hoefleri | Appellations de Taxon | 18335 |
| [18336] Shionodiscus oestrupii var. planus | Appellations de Taxon | 18336 |
| [18337] Surirella horrida | Appellations de Taxon | 18337 |
| [18338] Shionodiscus oestrupii var. venrickae | Appellations de Taxon | 18338 |
| [18339] Stauroneis francisci-josefi | Appellations de Taxon | 18339 |
| [18340] Surirella fuellebornii | Appellations de Taxon | 18340 |
| [18341] Synedra fulgens var. mediterranea | Appellations de Taxon | 18341 |
| [18342] Sellaphora fusticulus | Appellations de Taxon | 18342 |
| [18343] Synedra gaillonii | Appellations de Taxon | 18343 |
| [18344] Stephanodiscus galileensis | Appellations de Taxon | 18344 |
| [18345] Surirella gradifera | Appellations de Taxon | 18345 |
| [18346] Surirella grandiuscula | Appellations de Taxon | 18346 |
| [18347] Surirella guinardii | Appellations de Taxon | 18347 |
| [18348] Sellaphora guyanensis | Appellations de Taxon | 18348 |
| [18349] Surirella halteriformis | Appellations de Taxon | 18349 |
| [1835] Najas marina | Appellations de Taxon | 1835 |
| [18350] Staurophora amphioxys var. obtusa | Appellations de Taxon | 18350 |
| [18351] Stauroneis hartzii | Appellations de Taxon | 18351 |
| [18352] Surirella hastata | Appellations de Taxon | 18352 |
| [18353] Shionodiscus bioculatus var. exiguus | Appellations de Taxon | 18353 |
| [18354] Stauroneis heinii | Appellations de Taxon | 18354 |
| [18355] Surirella helvetica | Appellations de Taxon | 18355 |
| [18356] Shionodiscus endoseriatus | Appellations de Taxon | 18356 |
| [18357] Shionodiscus exceptiunculus | Appellations de Taxon | 18357 |
| [18358] Shionodiscus frenguelliopsis | Appellations de Taxon | 18358 |
| [18359] Shionodiscus frenguellii | Appellations de Taxon | 18359 |
| [1836] Najas minor | Appellations de Taxon | 1836 |
| [18360] Shionodiscus gracilis var. expectus | Appellations de Taxon | 18360 |
| [18361] Synedropsis hyperborea | Appellations de Taxon | 18361 |
| [18362] Synedropsis hyperboreoides | Appellations de Taxon | 18362 |
| [18363] Shionodiscus poro-irregulatus | Appellations de Taxon | 18363 |
| [18364] Shionodiscus praeoestrupii | Appellations de Taxon | 18364 |
| [18365] Shionodiscus perpusillus | Appellations de Taxon | 18365 |