RECORD: Darwin, C. R. & Emma Darwin. 1864.04.04. Tropaeolum tricolorum. CUL-DAR157.1.87. Edited by John van Wyhe (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.
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". Reproduced with permission of the Syndics of Cambridge University Library and William Huxley Darwin.
[87]
Trop. tricolorum azureum April 4th 1864.
Shoot formerly observed proceeded from bulb, present shoots on top of plant 2 ft high. This day revolved with sun. Shoot observed made 2 first circles at average of 1° 38', 3rd circle in 1° 57' —
4th — in 1° 55' 1°. 49'. 2 loops of thread 10 & 5 in. (viz. .25g & (.125 gr) both acted.
A single thin twig on young peduncles twice caused perceptible curvature movement in 5' & once in 6'.
One of former peds was considerably curved in 8' at rt angles in 15' & became straight again in 4° or 5°. Peds. move in any direction when touched.
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 19 July, 2023