Plants in Venezuelan plains.
Observations on Turnera: heterostyly, leaf-base glands’ secretion eaten by ants.
Observations on role of leaf secretions in fertilisation of Marcgravia and Passiflora.
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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.
Plants in Venezuelan plains.
Observations on Turnera: heterostyly, leaf-base glands’ secretion eaten by ants.
Observations on role of leaf secretions in fertilisation of Marcgravia and Passiflora.
Cobaea fertilisation.
Describes moth-pollination of gentian growing on Venezuelan mountains.
Observations on earthworms in Venezuela.
Thanks for Earthworms.