RECORD: Darwin, C. R. n.d. Abstract of Dutrochet, Recherches sur la volubilité des tiges de certains végétaux et sur la cause de ce phénomène. CUL-DAR45.51. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)
REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 10.2022. RN1
NOTE: See record in the Darwin Online manuscript catalogue, enter its Identifier here. Reproduced with permission of the Syndics of Cambridge University Library William Huxley Darwin. The volume CUL-DAR45 contains notes for Natural selection chap. 4 'Variation under nature'.
Dutrochet, René Joachim Henri. 1844. Recherches sur la volubilité des tiges de certains végétaux et sur la cause de ce phénomène. Comptes rendus hebdomadaires des séances de l'Académie des Sciences 19: 295-303.
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Comptes Rendus. Tom XIX 1844. p. 300 Dutrochet says that different individuals of Solanum dulcamara, twine spontaneously more & have their leaves spirally arranged to right & left —
like left & right-handed shells— still better like Verruca
If we did not know passage wd seem impossible.—
[Climbing plants, p. 12: "The leaves of twining-plants rise from the stem (before it has twined) either alternately, or oppositely, or in a spire; in this latter case the line of insertion of the leaves and the course of revolution or of twining coincide. This fact has been well shown by Dutrochet*, who found different individuals of Solanum Dulcamara twining in opposite directions, and these had their leaves spirally arranged in opposite directions.
* Comptes Rendus, 1844, tom. xix. p. 295, and Annales des Soc. Nat. 3rd series, Bot., tom. ii. p. 163."]
(over)
[51v]
Scientific Memoirs Part IV. p. 278, 286.
similar case in winding of leaves.—
[See CUL-DAR75.137-144: "Scientific memoirs 4/276 variability in twisting of leaves in sp. & genus in Alluvium".]
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 1 November, 2022