| Several genera that are at times segregated from Atriplex have been variously treated as subgenera or sections, or simply placed in synonymy with Atriplex. |
| Species and not genera or subgenera are considered the most appropriate units in biodiversity studies. |
| These ingroup species were chosen to represent each of the proposed subgenera and genera from previous phylogenetic studies. |
| The most comprehensive monograph of the genus divides Rhynchospora into two subgenera and 29 sections. |
| Nevertheless, several Lutzomyia species can transmit both, representatives of the Viannia and Leishmania subgenera. |
| Popov's monograph of Cenozoic cardiid shell microstructure includes more than 62 genera and subgenera and 150 species. |
