RECORD: Darwin, C. R. [1864].08.25-26. Twisting of twiners. CUL-DAR157.1.7. Edited by John van Wyhe (The Complete Work of Charles Darwin Online, http://darwin-online.org.uk/)
REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 4.2023. 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 volumes CUL-DAR157.1-2 contain notes, abstracts etc. for Darwin's long paper and later book Climbing plants (1865). It was also commercially available as a softbound offprint, F834, F834a. See R. B. Freeman's bibliographical introduction. Items CUL-DAR157.1.11-60 were in a folder marked "Twiners". Items CUL-DAR157.1.61-112 were in a folder marked "Leaf-climbers" and items CUL-DAR157.1.114-147 were in a folder marked "Tendrils".
Aug 25— Twisting of Twiners—
A hank of worsted with one black thread & turned spirally round stick, like a convolvulus, (which had red line in alternating in spires facing the stick & facing outside) had to be turned round in same line with act of winding, & so there was no twisting of sa hanks (ie back) but there was twisting of axis.
I feel sure axis must turn round unless plant twists itself, of which I see no appearance.—
Aug. 26' In Hop. I could perceive no sign of rotation of axis, independent of its own growth, in stem with red line which had twisted round stick.—
Red line was painted on
Hop
Mikania
Ceropegia
Convolvulus
& Kidney Bean
& became twisted.
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 18 July, 2023