RECORD: Darwin, C. R. [ny].06.13-07.12. Scyphanthus elegans / Loasa aurantiaca. Greenhouse/ Solanum dulcamara. CUL-DAR157.1.49. 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.


[49]

Scyphanthus elegans Greenhouse (with sun)

June 13th 1°.— 45'

― 1°. 17'. quickest € ever made

― 14.' 1°. 36'

― 1°. 59' (sometimes takes 2 turns) in one direction Yes)

― 2°. 3'

[Climbing Plants, p. 18.]

Loasa aurantiaca. Greenhouse.......?

Greenhouse against sun

June 20th. 7° 20 2°. 37'

― 2°. 13'

― 4°. 0'

June 21' 2°. 35'

― 22d 3°. 26'

― 23d 3° 5'

July 11' another plant mov followed sun

1° 51 1° 46' 1° 41' 1° 48} very hot day

{one plant first ascended from left to right & then went shoot open straight & reversed movement.

July 12' cool morning 2° 35'— Right & left travelled at same rate—/over

[Climbing plants, p. 18.]

[49v]

When speaking of causes which check movement— add— that tip of shoot cut off does not clo stop movement of young lower internodes, so independent is movement of each—

The Scyphanthus (a member of same family as Loasa) a far more remarkable case, for every one of the many plants which I raised, took a turn or half turn round vertical stick, then came up for a short space & reversed its movement & went 1 turn or half turn in opposite direction.!!

Stem sufficiently stiff to support itself.

(not so in stiffest Hibbertia dentata.) — just like a leaf-climber.— The reversed wd take place in middle or at any spot in long internode. [sketch]

(Solanum dulcamara. 1 spec. has twined up string!!) but none of others round stick—

[Climbing plants, p. 25.]


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

File last updated 19 July, 2023