To J. D. Hooker 13 July [1861]
Summary
Has worked out homologies of orchids’ pollinia and rostellum.
On W. H. Harvey’s review ["The natural evolution of organic species considered", Dublin Hosp. Gaz. 8 (1861): 146–52].
| Author: | Charles Robert Darwin |
| Addressee: | Joseph Dalton Hooker |
| Date: | 13 July [1861] |
| Classmark: | DAR 115: 105 |
| Letter no: | DCP-LETT-3207 |
To J. D. Hooker 17 [July 1861]
Summary
Orchids from Kew.
JDH’s income problems.
| Author: | Charles Robert Darwin |
| Addressee: | Joseph Dalton Hooker |
| Date: | 17 [July 1861] |
| Classmark: | DAR 115: 106 |
| Letter no: | DCP-LETT-3210 |
To J. D. Hooker 27 July [1861]
Summary
On orchids supplied by Kew; homologies of pollen and rostellum.
| Author: | Charles Robert Darwin |
| Addressee: | Joseph Dalton Hooker |
| Date: | 27 July [1861] |
| Classmark: | DAR 115: 107 |
| Letter no: | DCP-LETT-3220 |
To J. D. Hooker [28 July – 10 August 1861]
Summary
Puzzled by function of orchids’ rostellum.
Orchids’ pollen concentrated in two pollinia; hence one flower can fertilise only two others. This may explain precision of orchid pollination mechanisms.
| Author: | Charles Robert Darwin |
| Addressee: | Joseph Dalton Hooker |
| Date: | [28 July – 10 Aug 1861] |
| Classmark: | DAR 115: 109 |
| Letter no: | DCP-LETT-3221 |
To J. D. Hooker [11 August 1861]
Summary
Has found function of rostellum: modified stigma guarantees attachment of pollinia.
| Author: | Charles Robert Darwin |
| Addressee: | Joseph Dalton Hooker |
| Date: | [11 Aug 1861] |
| Classmark: | DAR 115: : 108 |
| Letter no: | DCP-LETT-3226 |
To J. D. Hooker 13 [August 1861]
Summary
Personal regards.
William Darwin will make a botanist.
| Author: | Charles Robert Darwin |
| Addressee: | Joseph Dalton Hooker |
| Date: | 13 [Aug 1861] |
| Classmark: | DAR 115: 110 |
| Letter no: | DCP-LETT-3231 |
To J. D. Hooker 30 August [1861]
Summary
Orchid anatomy. Requests Lindley’s work on orchids [The genera and species of orchidaceous plants (1830–40)].
| Author: | Charles Robert Darwin |
| Addressee: | Joseph Dalton Hooker |
| Date: | 30 Aug [1861] |
| Classmark: | DAR 115: 111 |
| Letter no: | DCP-LETT-3238 |
To J. D. Hooker 6 September [1861]
Summary
After much crossing, has worked out meaning of dimorphism in Primula.
| Author: | Charles Robert Darwin |
| Addressee: | Joseph Dalton Hooker |
| Date: | 6 Sept [1861] |
| Classmark: | DAR 115: 112 |
| Letter no: | DCP-LETT-3248 |
To J. D. Hooker 24 September [1861]
Summary
CD’s orchid paper is to become orchid book [Orchids].
Primula paper is done [Collected papers 2: 45–63].
| Author: | Charles Robert Darwin |
| Addressee: | Joseph Dalton Hooker |
| Date: | 24 Sept [1861] |
| Classmark: | DAR 115: 113 |
| Letter no: | DCP-LETT-3263 |
To J. D. Hooker 28 September [1861]
Summary
Bates agrees with CD on neuter ants.
Orchids.
Repeating experiment of C. F. v. Gärtner to study Huxley’s idea of physiological species.
| Author: | Charles Robert Darwin |
| Addressee: | Joseph Dalton Hooker |
| Date: | 28 Sept [1861] |
| Classmark: | DAR 115: 114 |
| Letter no: | DCP-LETT-3268 |
To J. D. Hooker 4 October [1861]
Summary
Query on orchid homology.
Critical of F. A. Bauer on orchids [Illustrations of orchidaceous plants (1830–8)].
| Author: | Charles Robert Darwin |
| Addressee: | Joseph Dalton Hooker |
| Date: | 4 Oct [1861] |
| Classmark: | DAR 115: 115, DAR 115: 76 |
| Letter no: | DCP-LETT-3276 |
To J. D. Hooker 6–7 October [1861]
Summary
Orchid anatomy.
| Author: | Charles Robert Darwin |
| Addressee: | Joseph Dalton Hooker |
| Date: | 6–7 Oct [1861] |
| Classmark: | DAR 115: 116 |
| Letter no: | DCP-LETT-3277 |
To J. D. Hooker 11 October [1861]
Summary
Orchid anatomy: movement in Mormodes column.
| Author: | Charles Robert Darwin |
| Addressee: | Joseph Dalton Hooker |
| Date: | 11 Oct [1861] |
| Classmark: | DAR 115: 117 |
| Letter no: | DCP-LETT-3281 |
To J. D. Hooker 13 October [1861]
Summary
Orchid anatomy. Catasetum exemplifies slight modification of structure leading to new structure.
| Author: | Charles Robert Darwin |
| Addressee: | Joseph Dalton Hooker |
| Date: | 13 Oct [1861] |
| Classmark: | DAR 115: 118 |
| Letter no: | DCP-LETT-3285 |
To J. D. Hooker 15 [October 1861]
Summary
Orchid anatomy. Wind as agent of self-fertilisation in orchids.
| Author: | Charles Robert Darwin |
| Addressee: | Joseph Dalton Hooker |
| Date: | 15 [Oct 1861] |
| Classmark: | DAR 115: 119 |
| Letter no: | DCP-LETT-3286 |
To J. D. Hooker 18 October [1861]
Summary
Orchid anatomy. Movements of labellum.
Repeating Gärtner’s experiment with Verbascum varieties.
| Author: | Charles Robert Darwin |
| Addressee: | Joseph Dalton Hooker |
| Date: | 18 Oct [1861] |
| Classmark: | DAR 115: 120 |
| Letter no: | DCP-LETT-3288 |
To J. D. Hooker 23 October [1861]
Summary
JDH’s work on Gnetum: a living fossil.
Orchid anatomy.
Encloses lists of orchids and other specimens he would be interested in seeing.
| Author: | Charles Robert Darwin |
| Addressee: | Joseph Dalton Hooker |
| Date: | 23 Oct [1861] |
| Classmark: | DAR 115: 121, 126a, 124a |
| Letter no: | DCP-LETT-3296 |
To J. D. Hooker 27 October [1861]
Summary
Acropera anatomy puzzling. Malaxis anatomy deciphered.
| Author: | Charles Robert Darwin |
| Addressee: | Joseph Dalton Hooker |
| Date: | 27 Oct [1861] |
| Classmark: | DAR 115: 122 |
| Letter no: | DCP-LETT-3301 |
To J. D. Hooker 1 November [1861]
Summary
Orchid anatomy.
| Author: | Charles Robert Darwin |
| Addressee: | Joseph Dalton Hooker |
| Date: | 1 Nov [1861] |
| Classmark: | DAR 115: 123 |
| Letter no: | DCP-LETT-3304 |
To J. D. Hooker 1 November [1861]
Summary
Orchid homologies.
Sensitive responses in Catasetum.
Acropera becoming clear.
T. F. Jamieson impressed by JDH’s work on Himalayan glaciers.
| Author: | Charles Robert Darwin |
| Addressee: | Joseph Dalton Hooker |
| Date: | 1 Nov [1861] |
| Classmark: | DAR 115: 124 |
| Letter no: | DCP-LETT-3305 |
| letter | (59) |
| Darwin, C. R. | (56) |
| Hooker, J. D. | (3) |
| Hooker, J. D. | (56) |
| Darwin, C. R. | (3) |
