Charles Bonnet
Charles Bonnet | |
|---|---|
Bonnet painted by Jens Juel, 1777. | |
| Born | 13 March 1720 |
| Died | 20 May 1793 (aged 73) Genthod, Republic of Geneva |
| Known for | Phyllotaxis |
| Scientific career | |
| Fields | Naturalist |
Charles Bonnet (French: [ʃaʁl bɔnɛ]; 13 March 1720 – 20 May 1793) was a Genevan naturalist and philosophical writer. He is responsible for coining the term phyllotaxis to describe the arrangement of leaves on a plant. He was among the first to notice parthenogenetic reproduction in aphids and established that insects respired through their spiracles. He was among the first to use the term "evolution" in a biological context. Deaf from an early age, he also suffered from failing eyesight and had to make use of assistants in later life to help in his research.