John Ralfs
| John Ralfs | |
|---|---|
| Born | 13 September 1807 Millbrook, Hampshire, England | 
| Died | 14 July 1890 (aged 82) Penzance, Cornwall | 
| Alma mater | Winchester Hospital | 
| Known for | Desmids | 
| Scientific career | |
| Fields | Botany | 
| Author abbrev. (botany) | Ralfs | 
John Ralfs (13 September 1807 – 14 July 1890) was an English botanist. Born in Millbrook, near Southampton, he was the second son of Samuel Ralfs, a yeoman of an old family in Hampshire. He has been commemorated in the names of many plant groups and taxa at many levels.