Suggests CD try to get Lythrum hyssopifolia from France.
Dimorphic flowers.
Differences between newly opened and older orchids.
Flowers of Spiranthes and Goodyera.
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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.
Suggests CD try to get Lythrum hyssopifolia from France.
Dimorphic flowers.
Differences between newly opened and older orchids.
Flowers of Spiranthes and Goodyera.
Last chapter of Orchids opens up a "knotty sort of question about accident or design".
Changes in orchid flowers as they age.
Thinks CD may find trimorphism in Nesaea verticillata.