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Gosse, P. H. in addressee 
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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
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