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DCP-LETT-11881

From:
Charles Robert Darwin
To:
Hugo de Vries
Date:
13 Feb 1879
Source of text:
Artis Library (De Vries 5)
Summary:

Discusses heliotropism in plant cotyledons. Asks for information.

Contributor:
Darwin Correspondence Project

DCP-LETT-12190

From:
Charles Robert Darwin
To:
Hugo de Vries
Date:
12 Aug 1879
Source of text:
Artis Library (De Vries 6)
Summary:

Thanks for letter.

Comments on growth and movement of plants.

Contributor:
Darwin Correspondence Project

DCP-LETT-12219F

From:
Charles Robert Darwin
To:
Hugo de Vries
Date:
6 Sept 1879
Source of text:
Artis Library (De Vries 7)
Summary:

Perhaps movement from side to side in plants is caused by the contraction of one side, rather than the expansion of the other.

Sends seeds of Lychnis Githago: he observed the hypocotyledenous stem, not the root, contracting.

Contributor:
Darwin Correspondence Project
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