CD came to believe Drosera drew its nourishment from insects because it grows where no other plants survive. Doubts glands are modified stomata.
Suggests works by Grönland and Trécul.
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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.
CD came to believe Drosera drew its nourishment from insects because it grows where no other plants survive. Doubts glands are modified stomata.
Suggests works by Grönland and Trécul.
CD is puzzled by VD’s supposed hybrid tomato. If a hybrid, it would have to result from the "direct action of the pollen of a distinct species in the mother plant". CD believes this sort of inheritance occurs in varieties (though some botanists disagree), but not for species. Suggests "bud-variation".
Has sent remaining sheets for proposed French translation of Erasmus Darwin. Edmond Barbier should consider the pages from Seward’s Life that have been cut from the English edition.
Thanks VD for information on caterpillars selecting food plants from within one family,
and on similar behaviour in hogs, which will not eat any plants from a family containing some poisonous members.
Agrees that time alone can do nothing to modify species.
Is aware that the Papaveraceae are self-fertile but feels this does not preclude an occasional cross.