RECORD: Darwin, C. R. [1877].09.03-4. Lupinus mutabilis. CUL-DAR209.1.70. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)

REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 6.2022. RN1

NOTE: See record in the Darwin Online manuscript catalogue, enter its Identifier here. Reproduced with permission of the Syndics of Cambridge University Library and William Huxley Darwin. The volume CUL-DAR209.1 contains materials on circumnutation of leaves and sleep for Darwin's book Movement in plants (1880).


[70]

Lupinus mutabilis

Sept 3d 8° 30' P.m.

Leaves with white wool form an almost vertical star, & angle of petiole here shown holds good for 3 lower petioles all marked with white wool; 2 uppermost petioles of (one of them marked with white w.) are vertical

[annotated diagrams]

Black wool all leaflets considerably declined & their angles shown at B. as well as it can be.— Angle of petiole of Black w. with axis same as at A or a trace larger.

Sept. 4th 10° 45' a m. The petiole reclined fallen a trifle about 7° ie rose at night 7° from axis of the opposite 3d leaf from base, A white wool & continues the same for the 2 lower leaf. — Stars of lower leaves somewhat inclined stars of 2 upper ones almost horizontal

Black wool B one star almost horizontal — the other like this. Petiole is about same position as at night

[diagram]

we have met with analogous facts with cases in some other species.

(On the same plant of L. m some leaves when star horizontally during one day formed highly inclined stars at night & the petiole had rose up 7°. at Other leaves when little star moved during the day had all their leaflets sloping downward at 46° beneath the [illeg] at night & the petioles had hardly moved

(2 kinds of Sleep on same plant)

Again with L. luteus.


Return to homepage

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

File last updated 25 September, 2022