| Jméno ▲ | Poznámka | |
|---|---|---|
| Persoon | - | |
| Philippi, Rudolf Amandus | - | |
| Planch. | - | |
| Planchon | - | |
| Poelln. (1934) | - | |
| Poir. | - | |
| Pulliat ex Planch. | - | |
| Pursch | - | |
| Pursh | - | |
| Pursh, Frederick Traugott | - | |
| Pursh. | - | |
| Putz. (1857) | - | |
| R. Br. | - | |
| R. Br. ex Fresen. | - | |
| R. Vig. | - | |
| Radcliffe -Smith | - | |
| Rafin | - | |
| Rafinesque | - | |
| Raoual | - | |
| Raoul | - |