RECORD: Darwin, C. R. 1864.04.-04.22. Clematis glandulosa tropical. CUL-DAR157.1.62. 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.
[62]
Clematis glandulosa tropical. April 1864
Leaves broad ovate — peduncle short & thick seems singularly unfitted for movement — But young leaves, rubbed on any side bend to that, but I think chiefly downward — A twig placed so as to cause leaf to bend downwards, & leaf caused leaf to reverse & pass to opposite side; when taken away recovered its normal position.—
10 inches of string (1.64 gr) caused upper side of peduncle most slowly to bend, after several days.— 5 inches (.82 gr) did not act. — Leaves at first very young [sketch] (1.) [sketch] 2 ultimately [sketch].—
(No peduncle of leave first turned up & then like (1.))
Twines spirally well round stick.—
When like (2.) act as hooks?
1 1/2 turns one way & then straight & then reversed; though I tried by forcing to keep proper spire.—
[62v]
In Hothouse — moves against sun.. —
Ap. 21st 3°. 20"
― 22d 4°. 5'
― 4°.
[calculations not transcribed]
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 19 July, 2023