RECORD: Darwin, C. R. n.d. Abstract of Royer, Essai sur le Sommeil des plantes. CUL-DAR209.14.170. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)

REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 7.2023. 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 volume CUL-DAR209.14 contains material for Darwin's book Movement in plants (1880).


[170]

Ann. des Sc. Nat Bot (5th series) IX 1868

p. 345 Ch. Royer sur le Sommeil des Plantes (largely about Flowers)

Insists much on Turgescence— I ought to add with "proper degree of fluid turgescence" (add at end or beginning)

p. 366 remarks on cold stopping sleep-movements; when below 10°C. are slow, when below 5° C stop altogether — I think this does not refer to Hot-House Plants (Used)

p. 367 sub-merged leaves sleep as in air

p. 368 Medicago maculata, the leaves lifts themselves up in diurnal sleep! & so at night, but likewise "se renversent un peu de manière à presenter obliquement au ciel leur face inférieure."

p. 368 Portulaca oleracea relève ses feuilles en les imbriquant" Gleditschia rise raise up "redressent leur foliles en les inclinant vers la somme du petiole commun" L' Indigotier "ramène les siennes vers la base de ce petiole."

[170b]

369 Wistaria Sinensis "abaisse les folioles qui par une disposition bizarre sont inclinées dans la même feuille, les supérieures vers le sommet, les inférieures vers la base du petiole commun." [Movement in plants, p. 355.]

p. 378 thinks sleep of Plants analogous to sleep of animals — sole man who does so. —


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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 18 August, 2023