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To Gardeners’ Chronicle [before 14 September 1861]
Summary
Requests orchid specimens from Arethuseae division for his investigation of the many contrivances by which orchids are fertilised by insect agency.
Asks whether Charles Morren has published on the fertilisation of orchids by insect agency.
| Author: | Charles Robert Darwin |
| Addressee: | Gardeners’ Chronicle |
| Date: | [before 14 Sept 1861] |
| Classmark: | Gardeners’ Chronicle and Agricultural Gazette, 14 September 1861, p. 831 |
| Letter no: | DCP-LETT-3252 |
To Gardeners’ Chronicle [before 14 September 1861]
Summary
Two correspondents report fertilising Vinca rosea by imitating the action of an insect inserting its proboscis. Another says his Vinca rosea seed profusely without artificial fertilisation. CD asks what might explain the difference in results. In the latter instance, are the plants kept in a greenhouse with windows left open, so that moths could get access at night?
| Author: | Charles Robert Darwin |
| Addressee: | Gardeners’ Chronicle |
| Date: | [before 14 Sept 1861] |
| Classmark: | Gardeners’ Chronicle and Agricultural Gazette, 14 September 1861, pp. 831–2 |
| Letter no: | DCP-LETT-3253 |
