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1860-1869::1862::08 in date 
Darwin, C. R. in correspondent 
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DCP-LETT-3679

From:
Asa Gray
To:
Charles Robert Darwin
Date:
4 Aug 1862
Source of text:
DAR 110 (ser. 2): 67–9
Summary:

Gives J. T. Rothrock’s observations on the structure and fertility of the two forms of Houstonia. Mentions his own observations on Rhexia virginica and Gymnadenia tridentata.

Contributor:
Darwin Correspondence Project

DCP-LETT-3685

From:
Charles Robert Darwin
To:
Asa Gray
Date:
9 Aug [1862]
Source of text:
Gray Herbarium of Harvard University (71)
Summary:

Believes Lythrum is trimorphic. Asks AG for seeds of plants he suspects are polymorphic.

Contributor:
Darwin Correspondence Project

DCP-LETT-3688

From:
Asa Gray
To:
Charles Robert Darwin
Date:
18–19 Aug 1862
Source of text:
DAR 165: 111, 116
Summary:

Notes and observations on orchids.

Contributor:
Darwin Correspondence Project
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DCP-LETT-3692

From:
Charles Robert Darwin
To:
Asa Gray
Date:
21 Aug [1862]
Source of text:
Gray Herbarium of Harvard University (67)
Summary:

Emma and Leonard have scarlet fever.

Houstonia seems "a grand case"; J. T. Rothrock should publish his observations on the two pollens and the reciprocal action of two hermaphrodites.

Rhexia glandulosa offers nothing odd, but Heterocentron will turn out something marvellous like Lythrum.

Would like to know what AG thinks of last chapter of Orchids.

Contributor:
Darwin Correspondence Project
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