Thanks for "Two forms of Primula" [Collected papers 2: 45–63].
Praise for Orchids.
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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 for "Two forms of Primula" [Collected papers 2: 45–63].
Praise for Orchids.
Discusses hybrid strawberry–raspberry
and his research on Primula and Linum.
Suggests breeding experiments.
Doubtful about Donald Beaton’s statement about Pelargonium.
Mentions experiments on peloric flowers.
Has done extensive plant hybridisation: strawberry, raspberry, Rhododendron.
Thanks for CD’s experimental suggestions. Will count seeds of hybrid crosses.
Requests suggestions for Edinburgh Botanical Society expedition to British Columbia.
Suggests collecting seeds at different heights from British Columbia.
Describes experiment on seeds from short anthers.
C. V. Naudin writes he has discovered cause of hybrid sterility.
On holiday; cannot answer CD’s questions.
Has done Primula polyanthus experiment CD suggested.
Bryanthus erectus, said by [D. D.?] Cunningham to be a hybrid, has been found wild in North America.
Convinced length of stamens has no relation to powers of fertilisation in many plants.
Suggests experiments on Pelargonium and Phlox.
Advises about use of microscope.
CD is right on heterostyly in Primula. High praise. Has confirmed it with Primula polyanthus.
Sends sprig of Linum luteum corymbiflorum [?]. CD is right about its being dimorphic.
Will try some odd strawberry crosses this summer.