From:
Charles Robert Darwin
To:
George Henry Kendrick Thwaites
Date:
29 Dec [1862]
Source of text:
Cleveland Health Sciences Library (Robert M. Stecher collection)
Summary:
Asks for any authentic cases of "sports", which CD calls "bud-variations". Flowers introduced from warmer temperate regions are said to be particularly apt to sport in this way.
CD now has proof that Cinchona is dimorphic and that some dimorphic plants are absolutely sterile with their own-form pollen.
Asks GHKT to examine or send pollen specimens of two Ceylon genera.
Contributor:
Darwin Correspondence Project