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From:
Charles Robert Darwin
To:
George Henslow
Date:
15 [June 1866]
Source of text:
DAR Library: tipped into George Henslow’s copy of Variation
Summary:

CD believes most strongly in reversion. J. G. Kölreuter’s, K. F. v Gärtner’s, and some of Charles Naudin’s cases leave no doubt in his mind. Forgets whether Herbert gave cases but in conversation he certainly believed in it. Thinks Gärtner is right to say reversion occurs only rarely in plant hybrids which have not been cultivated. [See 5120.]

Variation

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
George Henslow
Date:
23 Oct [1876]
Source of text:
Darwin Library–CUL, Henslow 1888 (tipped in opposite p. 190)
Summary:

Floral structure. The order of the development of the whorls and its relationship to a protandrous or protogynous condition in flowers.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
George Henslow
Date:
11 Feb 1879
Source of text:
DAR (CD Library - G. Henslow 1888)
Summary:

Disagrees with GH over the value of cross-fertilisation.

Contributor:
Darwin Correspondence Project