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From Asa Gray   27 January 1863

Summary

Discusses the ill-will between England and U. S.

Considers the bases for deciding which plant species are "high" and which "low".

Comments on Alphonse de Candolle’s paper on oaks ["Étude sur l’espèce", Ann. Sci. Nat. (Bot.) 4th ser. 18 (1862): 59–110].

Encloses S. H. Scudder’s letter on Lepidoptera and fertilisation of orchids which identifies a butterfly with Platanthera pollinia adhering to it. Jokingly applies natural selection to butterflies acted on by orchid pollinia.

Author:  Asa Gray
Addressee:  Charles Robert Darwin
Date:  27 Jan 1863
Classmark:  DAR 165: 129, 130
Letter no:  DCP-LETT-3950

To Journal of Horticulture and Cottage Gardener   [before 27 January 1863]

Summary

Remarks on the influence of pollen of one species or variety on the seed and fruit of another while still attached to the female plant. Refers to a remarkable case previously given by D. Beaton and asks whether Beaton will repeat the details.

[CD’s letter is followed by notes by D. Beaton in which he answers CD’s question, dissociating himself from some of his remarks, and in particular denying C. F. v. Gärtner’s claim that colour of one variety of pea can be changed by the direct action of the pollen of a different variety.]

Author:  Charles Robert Darwin
Addressee:  Journal of Horticulture
Date:  [before 27 Jan 1863]
Classmark:  Journal of Horticulture and Cottage Gardener n.s. 4 (1863): 70
Letter no:  DCP-LETT-3951