RECORD: Darwin, C. R. 1877.09.14. Nicotiana glauca. CUL-DAR209.14.49. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)
REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 7.2023. 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-DAR209.14 contains material for Darwin's book Movement in plants (1880).
[49]
Sept 14. 77 Nicotiana glauca
Plant old & terminal leaflets hardy g do not visibly go to sleep.— fixed long bristle to midrib & traced course on horizontal planes of glass over it. — as shown from 7° 23' A.m. to 8° 30' P.m. — see diagram.
F. also observed both leaves in water & they certainly move like most sleeping plants — confirm Pfeffer on N. rustica. —
The above leaf stood highly inclined with back to front of greenhouse & upper surface to roof of do.
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 17 August, 2023