From:
Charles Robert Darwin
To:
Francis Darwin
Date:
5 [June 1878]
Source of text:
DAR 211: 22
Summary:
Sends letter and seeds from [F. J. Cohn].
Is working too hard.
Contributor:
Darwin Correspondence Project
Showing 1–5 of 5 items
Sends letter and seeds from [F. J. Cohn].
Is working too hard.
Has been observing the movements of leaves and cotyledons; sleep movements are exaggerated circumnutation. Reports some odd observations on movement in Oxalis species.
Can send FD twisted branches of some climbing plants if he wishes.
Asks questions related to movement in plants. The cotyledons of Oxalis offer a promising field for study.
Wonders why Julius von Sachs thinks bloom is a protection against insects.
Encloses notes on the cotyledons of Oxalis species.
Will dispatch the best twisted stems he can find.
Considers the role of the pulvinus in leaf movement.