Wrote to J. B. E. Bornet on CD’s behalf, declining the offer of seeds of Draba. But now Bornet writes that he is sending seeds to CD anyway [see 5592].
Corrects his previous description of the fertilisation of Indigofera.
Showing 21–26 of 26 items
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.
Wrote to J. B. E. Bornet on CD’s behalf, declining the offer of seeds of Draba. But now Bornet writes that he is sending seeds to CD anyway [see 5592].
Corrects his previous description of the fertilisation of Indigofera.
Hopes JTM’s health will improve.
Asks for information about crosses of peas.
Glad JTM intends to write a paper. Discusses JTM’s research on Arbutus.
CD’s riding accident.
Thanks for CD’s ["Fertilization of orchids", Collected papers 2: 138–56].
Although Thomas Meehan’s paper ["Variations in Epigaea repens", Proc. Philadelphia Acad. Nat. Sci. (1868): 153–6] shows great variability in this genus, JTM sees a need to qualify the generalisation that there is as much variation in the wild as under domestication. He knows no evidence for a constant proportion between variability in the wild and under cultivation.
Observations on correlation between leaf size and exposure to sun and shade.
Has evidence for two varieties of Ophrys apifera in England, which live in mutually exclusive colonies.
Leaflet variation at the tip of Lathyrus stems.
Sends seeds of Lathyrus and suggests an advantage of climbing plants is to shed their seeds in places secure from animals.
Contrary to F. Delpino, in JTM’s experience Ophrys aranifera is not sterile. However, seed germination is poor.
In a densely overgrown plot Convolvulus sabatius, not normally a twiner, becomes one.
Continues his extensive study on variability in Arbutus, and speculates on selection in fruit shape.