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Harvard University, Archives of the Gray Herbarium in repository 
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From:
Charles Robert Darwin
To:
Asa Gray
Date:
11 May [1863]
Source of text:
Gray Herbarium of Harvard University (59)
Summary:

CD despairs when men like AG and Lyell consider themselves incapable of judging on change of species by descent.

Is confused over phyllotaxy.

Has been looking at Plantago lanceolata.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Asa Gray
Date:
31 May [1863]
Source of text:
Gray Herbarium of Harvard University (84)
Summary:

AG’s review of Alphonse de Candolle’s paper [Am. J. Sci. 2d ser. 35 (1863): 430–44] is excellent.

Does not AG consider that orchids oppose Oswald Heer’s view that species arise suddenly by monstrosities?

Infers that AG cannot explain the angles of phyllotaxy; has been looking at Carl Nägeli on the subject.

Reports Gaston de Saporta’s belief that natural selection will ultimately triumph in France.

Is working slowly at Variation.

Reports his observations on the imperfect flowers of Viola and Oxalis.

Contributor:
Darwin Correspondence Project