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Hildebrand, Friedrich in correspondent 
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From:
Charles Robert Darwin
To:
Friedrich Hermann Gustav (Friedrich) Hildebrand
Date:
4 July 1870
Source of text:
Eilo Hildebrand (private collection of facsimiles) (Original, previously owned by Klaus Groove, sold by Venator and Hanstein, Cologne (dealers), 16 March 2018)
Summary:

Requests seeds of Nolana prostrata & Hibiscus Africanus, which have been matured in Germany or in the more Southern parts of Europe.

Contributor:
Darwin Correspondence Project
From:
Friedrich Hermann Gustav (Friedrich) Hildebrand
To:
Charles Robert Darwin
Date:
16 July 1870
Source of text:
DAR 166: 211
Summary:

Sends CD some seeds.

Has been experimenting with Oxalis crosses.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Friedrich Hermann Gustav (Friedrich) Hildebrand
Date:
10 Aug [1871]
Source of text:
Klaus Groove (private collection); sold by Venator and Hanstein, Cologne (dealers), 16 March 2018
Summary:

Mentions experiments on Lythrum.

Thanks for list of seeds.

Contributor:
Darwin Correspondence Project
From:
Friedrich Hermann Gustav (Friedrich) Hildebrand
To:
Charles Robert Darwin
Date:
5 Feb 1872
Source of text:
DAR 166: 212
Summary:

Praise for Descent.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Friedrich Hermann Gustav (Friedrich) Hildebrand
Date:
9 Feb 1872
Source of text:
Klaus Groove (private collection); sold by Venator and Hanstein, Cologne (dealers), 16 March 2018
Summary:

Comments on FH’s paper ["Verbreitungsmittel der Compositenfrüchte", Bot. Ztg. 30 (1872): 1–14].

Discusses function of mucus filaments on seeds of Compositae and other plants.

Comments on Eugen Askenasy’s publication [Beiträge zur Kritik der Darwin’schen Lehre (1872)].

Comments on evolutionary views of Carl Nägeli.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Friedrich Hermann Gustav (Friedrich) Hildebrand
Date:
15 May 1873
Source of text:
Klaus Groove (private collection); sold by Venator and Hanstein, Cologne (dealers), 16 March 2018
Summary:

Asks for results of FH’s experiments fertilizing some flowers with pollen from the same flower, & other flowers with pollen from distinct flowers borne by the same plant.

Has read FH’s paper on the distribution of the seeds of the Graminæ (Hildebrand 1872, pp. 740–1) with great interest.

Contributor:
Darwin Correspondence Project
From:
Friedrich Hermann Gustav (Friedrich) Hildebrand
To:
Charles Robert Darwin
Date:
23 May 1873
Source of text:
DAR 76: B179–80
Summary:

Sends results of his observations of cross- and self-fertilisation of Hypecoum grandiflorum and Eschscholzia californica [see Cross and self-fertilisation, pp. 331–2].

Contributor:
Darwin Correspondence Project
thumbnail
From:
Charles Robert Darwin
To:
Friedrich Hermann Gustav (Friedrich) Hildebrand
Date:
16 Nov [1873]
Source of text:
Klaus Groove (private collection); sold by Venator and Hanstein, Cologne (dealers), 16 March 2018
Summary:

Thanks for FH’s work on the means of the distribution of plants (Hildebrand 1873).

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Friedrich Hermann Gustav (Friedrich) Hildebrand
Date:
17 July 1875
Source of text:
Klaus Groove (private collection); sold by Venator and Hanstein, Cologne (dealers), 16 March 2018
Summary:

Asks about FH’s research on maize. Suggests experiments.

Contributor:
Darwin Correspondence Project
From:
Friedrich Hermann Gustav (Friedrich) Hildebrand
To:
Charles Robert Darwin
Date:
26 July 1875
Source of text:
DAR 166: 213
Summary:

No new experiments on mutually sterile maize varieties since his paper in Botanische Zeitung in 1868.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Friedrich Hermann Gustav (Friedrich) Hildebrand
Date:
28 July [1875]
Source of text:
Klaus Groove (private collection); sold by Venator and Hanstein, Cologne (dealers), 16 March 2018
Summary:

Apologises that he cannot supply any maize seed.

Contributor:
Darwin Correspondence Project
From:
Friedrich Hermann Gustav (Friedrich) Hildebrand
To:
Charles Robert Darwin
Date:
6 Dec 1876
Source of text:
DAR 166: 214
Summary:

Repeated maize crosses without success: i.e., in most cases yellow and red varieties did not produce fertile offspring.

Contributor:
Darwin Correspondence Project
From:
Friedrich Hermann Gustav (Friedrich) Hildebrand
To:
Charles Robert Darwin
Date:
18 Jan 1877
Source of text:
DAR 166: 215
Summary:

Praise for Cross and self-fertilisation: most important point proved is benefit of crossing between related individuals grown under different conditions. This explains adaptive value of dispersal mechanisms.

Contributor:
Darwin Correspondence Project
From:
Friedrich Hermann Gustav (Friedrich) Hildebrand
To:
Charles Robert Darwin
Date:
19 Mar 1877
Source of text:
DAR 111: A84
Summary:

Regrets he cannot help on Oxalis question. He did not note the names of species with cleistogamic flowers as he thought they were sufficiently known.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Friedrich Hermann Gustav (Friedrich) Hildebrand
Date:
29 Mar 1879
Source of text:
Klaus Groove (private collection); sold by Venator and Hanstein, Cologne (dealers), 16 March 2018
Summary:

Thanks for FHGH’s new book; also for the list of seeds, but he does not want any at present.

Contributor:
Darwin Correspondence Project