The Complete Work of Charles Darwin Online

RECORD: Darwin, C. R. 1879.09.16. Leaves rising at evening. CUL-DAR209.7.139. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)

REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 8.2022. 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 volumes CUL-DAR209.7-8 contain notes on heliotropism (phototropism) for Darwin's book Movement in plants (1880).

[139]

Leaves moving in Evening / ~~In ordinary~~ with circumnutating organs, at least, tension will go on increasing if movement mechanically prevented, as may be seen with edge of leaflets of Desmodium, when caught, & in curious case of Stylidium, as described by Gad

Sep. 16 /79/

[Movement in plants, p. 226: "The circumnutation of the gynostemium of Stylidium, as described by Gad,‡ is highly remarkable, and apparently aids in the fertilisation of the flowers.
‡ 'Sitzungbericht des bot. Vereins der P. Brandenburg,' xxi. p. 84."]

Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)