To Asa Gray 30 May [1875]
Summary
Wants seeds of Nesaea verticillata for crossing experiments to see whether seedlings from "illegitimate unions" are sterile like true hybrids.
Author: | Charles Robert Darwin |
Addressee: | Asa Gray |
Date: | 30 May [1875] |
Classmark: | Archives of the Gray Herbarium, Harvard University (121) |
Letter no: | DCP-LETT-10002 |
To Asa Gray 28 January 1876
Summary
Thanks for reviews of Insectivorous plants and of Climbing plants in Nation and American Journal Science [see 10329].
AG’s essay on seed dispersal ["Burs in the borage family", Am. Nat. 10 (1876): 1–4].
Preparing book on advantages of crossing [Cross and self-fertilisation].
Author: | Charles Robert Darwin |
Addressee: | Asa Gray |
Date: | 28 Jan 1876 |
Classmark: | Archives of the Gray Herbarium, Harvard University (111) |
Letter no: | DCP-LETT-10370 |
To Asa Gray 9 August 1876
Summary
AG’s Darwiniana [1876].
Cross and self-fertilisation has now gone to press.
Is preparing new edition of Orchids.
Author: | Charles Robert Darwin |
Addressee: | Asa Gray |
Date: | 9 Aug 1876 |
Classmark: | Archives of the Gray Herbarium of Harvard University (112) |
Letter no: | DCP-LETT-10575 |
To Asa Gray 28 October 1876
Summary
Is sending sheets of Cross and self-fertilisation. He will be curious to see what AG thinks of it, as AG speaks the truth whether or not he approves. Is sick of trying to correct his "horrid bad style".
Author: | Charles Robert Darwin |
Addressee: | Asa Gray |
Date: | 28 Oct 1876 |
Classmark: | Archives of the Gray Herbarium of Harvard University (113) |
Letter no: | DCP-LETT-10656 |
To Asa Gray 4 [November 1876]
Summary
Sends some sheets [of Cross and self-fertilisation].
Author: | Charles Robert Darwin |
Addressee: | Asa Gray |
Date: | 4 [Nov 1876] |
Classmark: | Archives of the Gray Herbarium of Harvard University (130c) |
Letter no: | DCP-LETT-10662 |
To Asa Gray 27 November 1876
Summary
Thanks for a correction. Hopes AG now has all the sheets of Cross and self-fertilisation.
Author: | Charles Robert Darwin |
Addressee: | Asa Gray |
Date: | 27 Nov 1876 |
Classmark: | Archives of the Gray Herbarium of Harvard University (114) |
Letter no: | DCP-LETT-10688 |
To Asa Gray 4 December 1876
Summary
Plans to republish his paper on dimorphism with additions [Forms of flowers]. Is convinced it is necessary to compare pollen-grains and the state of the stigma to recognise dimorphic plants. Requests specific plants to test for dimorphism and would welcome examples from any family in which he has not encountered dimorphic species.
Author: | Charles Robert Darwin |
Addressee: | Asa Gray |
Date: | 4 Dec 1876 |
Classmark: | Archives of the Gray Herbarium of Harvard University (115) |
Letter no: | DCP-LETT-10697 |
To Asa Gray 20 December 1876
Summary
Thanks for information about Hottonia.
Has found dimorphism in Forsythia.
Considers AG’s arguments on different terms for dimorphism, but cannot change to using the proposed new term [see 10699].
Author: | Charles Robert Darwin |
Addressee: | Asa Gray |
Date: | 20 Dec 1876 |
Classmark: | Archives of the Gray Herbarium of Harvard University (116) |
Letter no: | DCP-LETT-10728 |
To Asa Gray 3 January 1877
Summary
Asks AG not to send his rare specimens [of Leucosmia].
Is glad of the notice about black pigs.
Has great faith in Jeffries Wyman;
thinks A. R. Wallace founds his speculation on a feeble basis.
Author: | Charles Robert Darwin |
Addressee: | Asa Gray |
Date: | 3 Jan 1877 |
Classmark: | Gray Herbarium of Harvard University (118) |
Letter no: | DCP-LETT-10768 |
To Asa Gray 23 January 1877
Summary
Thanks AG for card about Pontederia.
Asks for specimens of Phlox subulata and Gilia aggregata to check for dimorphism.
Author: | Charles Robert Darwin |
Addressee: | Asa Gray |
Date: | 23 Jan 1877 |
Classmark: | Gray Herbarium of Harvard University (120) |
Letter no: | DCP-LETT-10811 |
To Asa Gray 18 February [1877]
Summary
Praises AG’s abstract of Cross and self-fertilisation [Am. J. Sci. 3d ser. 13 (1877): 125–41].
Hopes soon to finish with dimorphic plants.
Author: | Charles Robert Darwin |
Addressee: | Asa Gray |
Date: | 18 Feb [1877] |
Classmark: | Gray Herbarium of Harvard University (122) |
Letter no: | DCP-LETT-10851 |
To Asa Gray 8 March 1877
Summary
Leucosmia burnettiana is in all probability dimorphic. Thinks Gilia is truly heterostyled and Phlox subulata was, perhaps, once heterostyled. Has good evidence of heterostyly in 39 genera from 14 families.
Author: | Charles Robert Darwin |
Addressee: | Asa Gray |
Date: | 8 Mar 1877 |
Classmark: | Gray Herbarium of Harvard University (117) |
Letter no: | DCP-LETT-10883 |
To Asa Gray 19 March [1877]
Summary
Sends an informal title-page [for Orchids, 2d ed.].
Appreciates the condolences for Frank [on death of his wife, Amy].
Author: | Charles Robert Darwin |
Addressee: | Asa Gray |
Date: | 19 Mar [1877] |
Classmark: | Houghton Library, Harvard University (tipped into Orchids 2d ed., EC85 D2593 862oba) |
Letter no: | DCP-LETT-10901 |
To Asa Gray 4 June [1877]
Summary
C. E. Bessey’s case [see 10969] came too late, as the sheets had been printed, but CD thinks it should be carefully investigated as a possible case of incipient heterostyly.
Is trying to make out the function of "bloom", the waxy secretion on leaves and fruits.
Author: | Charles Robert Darwin |
Addressee: | Asa Gray |
Date: | 4 June [1877] |
Classmark: | Gray Herbarium of Harvard University (119) |
Letter no: | DCP-LETT-10982 |
To Asa Gray 21 [and 22] January 1878
Summary
Thanks for AG’s review of Forms of flowers [Am. J. Sci. 3d ser. 15 (1878): 67–73].
Thomas Carlyle’s letter about CD was a forgery.
Gives Hermann Müller’s observations on Valeriana dioica.
Is unsure about function of "bloom"; are glaucous plants more or less common in arid parts of U. S.?
Observations on heliotropism.
Thomas Meehan reports that Linum perenne is self-fertile; CD thinks that he has mistaken the species.
Author: | Charles Robert Darwin |
Addressee: | Asa Gray |
Date: | 21 and 22 Jan 1878 |
Classmark: | Archives of the Gray Herbarium, Harvard University (123 and 127) |
Letter no: | DCP-LETT-11330 |
To Asa Gray 17 February [1878]
Summary
Heterostyly in Linum perenne. Believes the American form may be a distinct species.
Author: | Charles Robert Darwin |
Addressee: | Asa Gray |
Date: | 17 Feb [1878] |
Classmark: | Archives of the Gray Herbarium, Harvard University (129) |
Letter no: | DCP-LETT-11364 |
To Asa Gray 15 August 1878
Summary
Climbing plants.
Requests seeds of Echinocystis lobata for Hugo de Vries.
Author: | Charles Robert Darwin |
Addressee: | Asa Gray |
Date: | 15 Aug 1878 |
Classmark: | Archives of the Gray Herbarium, Harvard University (124) |
Letter no: | DCP-LETT-11659 |
To Asa Gray 24 October 1879
Summary
Requests seeds of Ipomoea and Megarrhiza for observations on seedling growth.
Is rereading MS of Movement in plants.
Author: | Charles Robert Darwin |
Addressee: | Asa Gray |
Date: | 24 Oct 1879 |
Classmark: | Archives of the Gray Herbarium, Harvard University (125) |
Letter no: | DCP-LETT-12269 |
To Asa Gray 16 December 1879
Summary
Thanks for AG’s trouble about the seeds. Is curious to see their germination and the early seedling growth.
Asks for cotton seeds, as he observes odd movements of the cotyledon.
Author: | Charles Robert Darwin |
Addressee: | Asa Gray |
Date: | 16 Dec 1879 |
Classmark: | Archives of the Gray Herbarium, Harvard University (130a) |
Letter no: | DCP-LETT-12357 |
To Asa Gray 19 January 1880
Summary
Describes the germination and early growth of Megarrhiza about which AG has been misinformed. The tubular petioles act functionally like a root.
Ipomoea did not germinate.
Author: | Charles Robert Darwin |
Addressee: | Asa Gray |
Date: | 19 Jan 1880 |
Classmark: | Archives of the Gray Herbarium, Harvard University (126) |
Letter no: | DCP-LETT-12433 |
letter | (269) |
Darwin, C. R. | (143) |
Gray, Asa | (126) |
Gray, J. L. | (1) |
Gray, Asa | (143) |
Darwin, C. R. | (126) |
Darwin, C. R. | |
Gray, Asa | |
Gray, J. L. | (1) |