Sent off Corydalis. Observations on Corydalis pistils.
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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.
Sent off Corydalis. Observations on Corydalis pistils.
Discusses dimorphism in linum and primula. Describes death of Mrs. Ashworth.
Sends observations on [Anchusa] plants from Isle of Wight.
Discusses dimorphic plants.
Describes the structure of Corydalis and its arrangement for making pollen accessible to bees.
Thanks WED for his botanical specimens and observations.
Discusses Corydalis and the fertilisation of Fumariaceae.
Alarmed that CD did not see what WED saw in Corydalis lutea. Has found buckbean in the New Forest. Will get seeds of Corydalis claviculata.
Relates events at Down;
asks WED to make some observations on Lythrum.
His present hobby-horse is tendrils.
Spoke to Rosas, and gave him CD’s paper.
Could not find Anchusa but will go out and find some.
Has signed and forwarded some orders.
[Outline sketches of pollen from long- and short-styled yellow cowslips and from a red cowslip.]
Has drawn all three forms of primroses CD sent "with same result". Has found no pink variety with middle style.
Sends drawings of the pollen from Chinese Primula plants with styles and pistils of different lengths; observations on sizes and condition of their pollen.
Observations on [length of style and length of filament and stigmas of] Pulmonaria.
CD is right about variability [of Pulmonaria]. Encloses observations and diagrams of additional plants.
[Outline sketches of pollen from long- and short-styled yellow cowslips and from red cowslip, magnified 350x.]
Instructions on measuring pollen of dimorphic plants.
Thanks WED for measuring cowslip pollen. Sends dimorphic flowers.
Experiment instructions.