Thanks DN for references.
The Apocyanaceae that catch Lepidoptera represent the most gratuitous case of cruelty in nature known to CD, since the captured butterfly is of no use to the plant.
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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.
Thanks DN for references.
The Apocyanaceae that catch Lepidoptera represent the most gratuitous case of cruelty in nature known to CD, since the captured butterfly is of no use to the plant.
Requests return of August Weismann’s letter which refers to eggs.
Curious about the drawing [of the caterpillar? See 10780].
CD has harangued the Down Friendly Club. Does not think it will dissolve.
CD’s opinion of a specimen sent by JBI from an unknown tree, and the Ross-shire tale about it.
Thanks RAV for valuable letter [11232]. CD too ignorant of anatomy to form a decided opinion, but is inclined to attribute spiral folds to reversion and the valves to partial abortion of the fold. Asks RAV to verify by examining lower intestine of an opossum for the structure. If missing he would hesitate to allude to reversion. If RAV can prove the nature of these remnants it would be a conclusion of much interest.