From R. I. Lynch [before 28 July 1877]1
Mem
Averrhoa Bilimbi
I once found the leaflets in V position above the rachis. after which they placed themselves horizontally and remained at rest.2
I have looked repeatedly for the same appearance but since without success.
If I remember rightly the sun shone intensely at the time and directly on the plant—in the morning
CD annotations
2.1 interest.] before ‘Movt of Leaves’ red crayon
3.1 are depressed … so slowly 3.2] ‘& Desmodium’ in margin, red crayon
Footnotes
The date is established by the relationship between this letter and the first letter from R. I. Lynch, [before 28 July 1877]. The first letter contains more information on the phenomenon described here, so this letter is most likely the second to have been sent.
Lynch made more detailed observations on sensitiveness of leaves of Averrhoa bilimbi (the bilimbi or cucumber tree) in his first letter of [before 28 July 1877]. The rachis is the axis of a pinnate leaf.
Summary
Sleep movements of Averrhoa bilimbi.
Letter details
- Letter no.
- DCP-LETT-11118
- From
- Richard Irwin Lynch
- To
- Charles Robert Darwin
- Sent from
- unstated
- Source of text
- DAR 209.14: 185
- Physical description
- AmemS 1p
Please cite as
Darwin Correspondence Project, “Letter no. 11118,” accessed on 26 September 2022, https://www.darwinproject.ac.uk/letter/?docId=letters/DCP-LETT-11118.xml
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