The Complete Work of Charles Darwin Online

RECORD: Darwin, C. R. 1878.07.14. Mimosa albida. CUL-DAR209.2.135. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)

REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 5.2023. 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-DAR209.2 contains materials on circumnutation of leaves and stems for Darwin's book Movement in plants (1880).

[135]

July 14th 1878 Mimosa albida

I cut off 1 pinna & fixed filaments with sight to rudimentary & opposite leaflet & traced under Bell-glass in study. Temp 20°C. during day.

The common leaf ~~made~~ completed one large ellipse in with longer axis horizontal & then in evening moved downward & inwards—

The rudimentary leaflet also made a large ellipse with a supplementary small one between 12° & 2°, but no great difference between this movements.— The leaf did not recover very well from the 1 pinna having been cut off, or from the filaments having been affixed to leaves.

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