| [18595] Stauroneis pteroidea | Appellations de Taxon | 18595 |
| [18596] Surirella patens | Appellations de Taxon | 18596 |
| [18597] Staurosirella pinnata var. trigona | Appellations de Taxon | 18597 |
| [18598] Surirella patrickae | Appellations de Taxon | 18598 |
| [18599] Stephanopyxis apiculata | Appellations de Taxon | 18599 |
| [186] Metarhyacophila | Appellations de Taxon | 186 |
| [1860] Littorella lacustris | Appellations de Taxon | 1860 |
| [18600] Surirella pyriformis | Appellations de Taxon | 18600 |
| [18601] Surirella quadridentis | Appellations de Taxon | 18601 |
| [18602] Stauroneis quadripedis | Appellations de Taxon | 18602 |
| [18603] Surirella robusta var. armata | Appellations de Taxon | 18603 |
| [18604] Stenopterobia rautenbachiae | Appellations de Taxon | 18604 |
| [18605] Stauroneis resoluta | Appellations de Taxon | 18605 |
| [18606] Sellaphora reviersii | Appellations de Taxon | 18606 |
| [18607] Surirella rugosa | Appellations de Taxon | 18607 |
| [18608] Sellaphora rhombicarea | Appellations de Taxon | 18608 |
| [18609] Staurosirella rhomboides | Appellations de Taxon | 18609 |
| [1861] Littorella uniflora | Appellations de Taxon | 1861 |
| [18610] Surirella rhombica | Appellations de Taxon | 18610 |
| [18611] Sellaphora riojae | Appellations de Taxon | 18611 |
| [18612] Staurosirella pinnata abnormal form | Appellations de Taxon | 18612 |
| [18613] Stauroneis parajavanica | Appellations de Taxon | 18613 |
| [18614] Stenopterobia planctonica | Appellations de Taxon | 18614 |
| [18615] Stauroneis plicata | Appellations de Taxon | 18615 |
| [18616] Sellaphora pseudomutatoides | Appellations de Taxon | 18616 |
| [18617] Stenopterobia pumila | Appellations de Taxon | 18617 |
| [18618] Stellarima primalabiata | Appellations de Taxon | 18618 |
| [18619] Stauroneis producta | Appellations de Taxon | 18619 |
| [1862] Polygonaceae | Appellations de Taxon | 1862 |
| [18620] Surirella peruviana | Appellations de Taxon | 18620 |
| [18621] Stauroneis parasubgracilis | Appellations de Taxon | 18621 |
| [18622] Stauroneis pseudoschimanskii | Appellations de Taxon | 18622 |
| [18623] Stauroneis pseudosmithii | Appellations de Taxon | 18623 |
| [18624] Staurosirella pinnata var. subrotunda | Appellations de Taxon | 18624 |
| [18625] Stauroneis punensis | Appellations de Taxon | 18625 |
| [18626] Synedra pulcherrima | Appellations de Taxon | 18626 |
| [18627] Synedra pulchella f. subconstricta | Appellations de Taxon | 18627 |
| [18628] Sellaphora pupula abnormal form | Appellations de Taxon | 18628 |
| [18629] Stauroneis parviporis | Appellations de Taxon | 18629 |
| [1863] Polygonum | Appellations de Taxon | 1863 |
| [18630] Surirella robusta var. bispinosa | Appellations de Taxon | 18630 |
| [18631] Stauroneis reichardtii | Appellations de Taxon | 18631 |
| [18632] Sellaphora rectangularis | Appellations de Taxon | 18632 |
| [18633] Surirella regina | Appellations de Taxon | 18633 |
| [18635] Sellaphora renata | Appellations de Taxon | 18635 |
| [18636] Surirella rudis var. levis | Appellations de Taxon | 18636 |
| [18637] Surirella rumrichorum | Appellations de Taxon | 18637 |
| [18638] Stenopterobia robusta | Appellations de Taxon | 18638 |
| [18639] Surirella rorata | Appellations de Taxon | 18639 |
| [18640] Stauroneis respectabilis | Appellations de Taxon | 18640 |