RECORD: Darwin, C. R. 1878.08.28. Oxalis sensitiva. CUL-DAR209.6.138. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)
REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 12.2022. RN1
NOTE: See record in the Darwin Online manuscript catalogue, enter its Identifier here. Reproduced with permission of the Syndics of Cambridge University Library and William Huxley Darwin. The volume CUL-DAR209.6 contains materials for Darwin's book Movement in plants (1880).
Notes for Movement in plants. Text F1325
[138]
Aug. 28th 1878
Oxalis sensitiva (Light & Touch) Relation of
Plan Brought pot out of Hot-House & left for 30' in S.W. window & the leaflets were all horizontal — Placed in washing corner at 11° 10' & looked at occasionally till 12°— no trace of sleeping. — Put pot on absolutely dark closet at 12° & looked at occasionally but by 1. 32' no signs of sleep.— I then tried leaflets & found they were sensitive.
Used
Therefore there is no close relation between sensitiveness to light & touch, as I had thought from cases in genus Cassia, & some analogous facts held good. Ø
[138v]
I think this worth a single sentence under head of Light.
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 21 January, 2023