| Jméno ▲ | Poznámka | |
|---|---|---|
| Rauschert, Stephan | - | |
| Raym.-Hamet & H.Perrier | - | |
| Raym.-Hamet ex Cufod. | - | |
| Rchb. f. (1866) | - | |
| Regel | - | |
| Regel | - | |
| Regel (1852) | - | |
| Regel (1859) | - | |
| Regel (1864) | - | |
| Regel et Körn. (1858) | - | |
| Rehd. | - | |
| Rehd. et Wils. | - | |
| Rehder & E. H. Wilson | - | |
| Rix | - | |
| Rochel ex Schard. | - | |
| Roem. | - | |
| Röhl. | - | |
| Ronniger | - | |
| Rose | - | |
| Rose, Joseph Nelson | - |