RECORD: Darwin, C. R. [1878].11.15-26. Cassia florida. CUL-DAR209.6.57. 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).
[57]
Cassia florida
Cotyledons
Nov. 15th First day of expanding single plant, angle of Cot 117°, rubbed upper surface for 1' 30" & in 10' the angle was 135° so rose 18°— 9° Therefore sensitive. At night thoroughly closed. Nov 26' I observe every morning at 7° 15 to 7° 30' that this sp. awake or open later in the morning than C. glauca & pubescens. (Used)
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 16 January, 2023