Wants seeds of Nesaea verticillata for crossing experiments to see whether seedlings from "illegitimate unions" are sterile like true hybrids.
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The Charles Darwin Collection
The Darwin Correspondence Project is publishing letters written by and to the naturalist Charles Darwin (1809–1882). Complete transcripts of letters are being made available through the Project’s website (www.darwinproject.ac.uk) after publication in the ongoing print edition of The Correspondence of Charles Darwin (Cambridge University Press 1985–). Metadata and summaries of all known letters (c. 15,000) appear in Ɛpsilon, and the full texts of available letters can also be searched, with links to the full texts.
Wants seeds of Nesaea verticillata for crossing experiments to see whether seedlings from "illegitimate unions" are sterile like true hybrids.
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].
AG’s Darwiniana [1876].
Cross and self-fertilisation has now gone to press.
Is preparing new edition of Orchids.
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".
Sends some sheets [of Cross and self-fertilisation].
Thanks for a correction. Hopes AG now has all the sheets of Cross and self-fertilisation.
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.
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].
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.
Thanks AG for card about Pontederia.
Asks for specimens of Phlox subulata and Gilia aggregata to check for dimorphism.
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.
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.
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.
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.
Heterostyly in Linum perenne. Believes the American form may be a distinct species.
Climbing plants.
Requests seeds of Echinocystis lobata for Hugo de Vries.
Requests seeds of Ipomoea and Megarrhiza for observations on seedling growth.
Is rereading MS of Movement in plants.
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.
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.
Germination of Delphinium and Megarrhiza.