Search: Darwin, C. R. in correspondent 
Gosse, P. H. in correspondent 
1860-1869 in date 
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DCP-LETT-4200

From:
Charles Robert Darwin
To:
Philip Henry Gosse
Date:
2 June [1863]
Source of text:
Leeds University Library Special Collections (Brotherton Collection: Gosse Correspondence)
Summary:

Can only conjecture that the problem occurs because the plant is not living in its natural conditions. Refers to what he said on Acropera [in Orchids]. Many plants under culture have sexual functions altered.

Asks PHG to look at bee Ophrys at Torquay to see if pollinia are ever removed. "It is my greatest puzzle."

Contributor:
Darwin Correspondence Project

DCP-LETT-4205

From:
Charles Robert Darwin
To:
Philip Henry Gosse
Date:
5 June [1863]
Source of text:
Lieutenant-Colonel James Innes (private collection); sold at Christie‘s New York (dealers), 15 November 2011, lot 55
Summary:

PHG’s hypothesis [regarding the self-fertilising mechanism of Stanhopea] may prove quite true, but CD suggests that PHG should observe another spike to make sure. CD will observe his Stanhopea if it flowers.

Contributor:
Darwin Correspondence Project

DCP-LETT-4454

From:
Charles Robert Darwin
To:
Philip Henry Gosse
Date:
7 Apr [1864]
Source of text:
American Philosophical Society (Mss.B.D25.298)
Summary:

Discusses microscopic observation of pollen tubes.

Unable to exchange orchids because of his illness.

Contributor:
Darwin Correspondence Project

DCP-LETT-4194

From:
Philip Henry Gosse
To:
Charles Robert Darwin
Date:
30 May 1863
Source of text:
DAR 165: 76
Summary:

Asks CD’s help with problem that arose when he tried to impregnate an orchid following CD’s text in Orchids.

Contributor:
Darwin Correspondence Project
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DCP-LETT-4203

From:
Philip Henry Gosse
To:
Charles Robert Darwin
Date:
4 June 1863
Source of text:
DAR 165: 77
Summary:

Thanks CD for his full reply. Sends additional facts derived from further observation, and a possible solution.

Contributor:
Darwin Correspondence Project
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DCP-LETT-4240

From:
Philip Henry Gosse
To:
Charles Robert Darwin
Date:
13 July 1863
Source of text:
DAR 165: 78
Summary:

On CD’s request to observe bee Ophrys: PHG’s son collected 16 plants – of the 32 flowers, two had lost both pollinia, two had lost one each. He himself found two plants with pollinia adhering to the stigma.

Contributor:
Darwin Correspondence Project
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DCP-LETT-4451

From:
Philip Henry Gosse
To:
Charles Robert Darwin
Date:
5 Apr 1864
Source of text:
DAR 165: 79
Summary:

Asks how he can identify pollen-tubes.

Has succeeded in impregnating orchids of widely different genera with each other’s pollinia. "Is not this something new?"

Offers to exchange Catasetum for other varieties.

Contributor:
Darwin Correspondence Project
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