Observations on Platanthera.
Possibility of trimorphism in Mertensia.
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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.
Observations on Platanthera.
Possibility of trimorphism in Mertensia.
Suggests CD try to get Lythrum hyssopifolia from France.
Dimorphic flowers.
Differences between newly opened and older orchids.
Flowers of Spiranthes and Goodyera.
Encloses maize seeds.
Has heard of a butterfly with pollinia of Platanthera stuck to it.
Comments on AG’s notes ["Dimorphism in the genitalia of flowers", Am. J. Sci. 2d ser. 34 (1862): 149–50].
"Precocious fertilisation".
Discusses politics in the U. S. and relations between Britain and America.
Will observe Rhexia for CD to see whether it is dimorphic.
Has been reading J. D. Morell’s new book on psychology [An introduction to mental philosophy, on the inductive method (1862)].
Progress of the Civil War.
Has received first sheets of Orchids and is very impressed. "What a skill & genius you have for these researches."
Details of U. S. orchids.
Discusses heterostyly in Houstonia.
Has not had time to look at Rhexia.
Progress of Civil War.
Discusses dimorphic plants and the occurrence of "precocious fertilisation" in the bud.
Gives some comments on design in nature in the light of the translator’s commentary in the French edition of the Origin.
Reports the recent events of the Civil War.
[Note on verso of envelope:] Utricularia vulgaris is "about as neatly contrived for cross-fertilisation by insects as almost any orchid".
Encloses stamps for Leonard Darwin.
Is observing Gymnadenia tridentata.
Has received six copies of Orchids.
Gives J. T. Rothrock’s observations on the structure and fertility of the two forms of Houstonia. Mentions his own observations on Rhexia virginica and Gymnadenia tridentata.
Notes and observations on orchids.
Last chapter of Orchids opens up a "knotty sort of question about accident or design".
Changes in orchid flowers as they age.
Thinks CD may find trimorphism in Nesaea verticillata.
Thinks Max Müller’s Lectures on the science of language [1861–4] will do a real service to CD and natural selection.
Sends Nesaea seeds for CD
and stamps for Leonard Darwin.
AG has Cypripedium to send to CD.
Civil War and English feelings.
Flower structure of Cypripedium insigne.
Gives reference to his observations on tendrils [Proc. Am. Acad. Arts & Sci. 4: 98–9].
Notes cases in which the pollen of the fertilising plant affects the form of the fruit of the fertilised plant, e.g., gourds and maize.
Discusses the Civil War and the attitudes of the English press.