From J. D. Hooker [24 November 1846]
Author: | Joseph Dalton Hooker |
Addressee: | Charles Robert Darwin |
Date: | [24 Nov 1846] |
Classmark: | DAR 100: 77–8 |
Letter no: | DCP-LETT-1032 |
From J. D. Hooker 1 February 1846
Summary
Goes on the assumption that each species has one origin, is immutable, and migrates.
Disagrees with Gaudichaud[-Beaupré] that volcanic island species are polymorphous.
Some mundane genera vary, others do not (Senecio vs Gnaphalium).
John Lindley’s doctrine of longevity of trees is amazing.
Edward Forbes’s health is better.
Author: | Joseph Dalton Hooker |
Addressee: | Charles Robert Darwin |
Date: | 1 Feb 1846 |
Classmark: | DAR 100: 60–2 |
Letter no: | DCP-LETT-947 |
From J. D. Hooker 2 [March] 1846
Summary
Thanks for Edward Forbes’s letter. Botanical evidence conflicts with parts of his theory but supports others. Is becoming more of a migrationist.
Bentham agrees with JDH on polymorphism.
Author: | Joseph Dalton Hooker |
Addressee: | Charles Robert Darwin |
Date: | 2 [Mar] 1846 |
Classmark: | DAR 100: 63–8 |
Letter no: | DCP-LETT-958 |
From J. D. Hooker [25 March 1846]
Summary
JDH recognises the existence of "altered states" of continental species in island floras. The botanists’ difficulty in determining a new species is no grounds for dismissing the important question of altered forms.
Will look for Ascension plants for Ehrenberg.
French Galapagos collections confirm JDH’s view that plants arrived from north.
Cannot agree with Forbes on North Atlantic flora.
Botanical definition of "highness" and "lowness" usually means complexity and simplicity.
Some plants, such as aquatic ones, are cleistogamous. Cannot see why they should not be.
Author: | Joseph Dalton Hooker |
Addressee: | Charles Robert Darwin |
Date: | [25 Mar 1846] |
Classmark: | DAR 104: 188–91 |
Letter no: | DCP-LETT-964 |
From J. D. Hooker [11–15 April 1846]
Summary
Hugh Falconer gives no specific objections to Forbes’s views.
Botanical contrast between Cape of Good Hope and the rest of Africa is as strong as that between Australia and India.
Wishes CD would leave off snuff.
Author: | Joseph Dalton Hooker |
Addressee: | Charles Robert Darwin |
Date: | [11–15 Apr 1846] |
Classmark: | DAR 104: 205 |
Letter no: | DCP-LETT-966 |
From J. D. Hooker 30 March 1846
Summary
Sends specimens of grasses from Ascension Island for CD to forward to Christian Gottfried Ehrenberg.
Includes list of indigenous flowering plants of Ascension Island.
Author: | Joseph Dalton Hooker |
Addressee: | Charles Robert Darwin |
Date: | 30 Mar 1846 |
Classmark: | Museum für Naturkunde Berlin (MfN/HBSB, N005 NL Christian Gottfried Ehrenberg Nr. 123 Bl. 9) |
Letter no: | DCP-LETT-967F |
From J. D. Hooker [before 3 September 1846]
Author: | Joseph Dalton Hooker |
Addressee: | Charles Robert Darwin |
Date: | [before 3 Sept 1846] |
Classmark: | DAR 100: 79 |
Letter no: | DCP-LETT-994 |
From J. D. Hooker 28 September 1846
Summary
Cannot come to Down to meet B. J. Sulivan as W. H. Harvey is calling.
Plant distribution and soil nature.
Forbes’s modification of Watson’s types of vegetation.
JDH will write comparison of representative plant species of the N. and S. Hemispheres.
Author: | Joseph Dalton Hooker |
Addressee: | Charles Robert Darwin |
Date: | 28 Sept 1846 |
Classmark: | DAR 100: 69–72 |
Letter no: | DCP-LETT-998 |