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DCP-LETT-1674

From:
Charles Robert Darwin
To:
Asa Gray
Date:
25 Apr [1855]
Source of text:
Archives of the Gray Herbarium, Harvard University (1)
Summary:

Is collecting facts on variation; questions AG on the alpine flora of the U. S.

Sends a list of plants from AG’s Manual of botany [1848] and asks him to append the ranges of the species.

Contributor:
Darwin Correspondence Project

DCP-LETT-1685

From:
Asa Gray
To:
Charles Robert Darwin
Date:
22 May 1855
Source of text:
DAR 106: D1–D2
Summary:

Has filled up CD’s paper [see 1674].

Distribution and relationships of alpine flora in U. S.

Contributor:
Darwin Correspondence Project
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DCP-LETT-1707

From:
Asa Gray
To:
Charles Robert Darwin
Date:
30 June 1855
Source of text:
DAR 165: 92a
Summary:

Sends a list of "close" species from his Manual of botany.

Hopes Hooker or CD will write an essay on species. Discusses some of the difficulties of defining botanical species.

Contributor:
Darwin Correspondence Project
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