RECORD: Darwin, C. R. 1874.07. Mimosa pudica. CUL-DAR209.2.91. (Cite as: John van Wyhe ed., 2002-. The Complete Work of Charles Darwin Online, http://darwin-online.org.uk/)

REVISION HISTORY: Transcribed by Christine Chua and John van Wyhe, edited by John van Wyhe 5.2023. RN2

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).

[91]

Course of apex of leaf of M. pudica traced by Frank

July 1874 when leaf asleep. In diagram (1) the leaf had been lately placed in a new position & probably the leaf had bent itself during day greatly to the light. In (2) & (3) the leaves had nearly faced to light for several days & here we see little lateral movement, but complicated zig-zag.

[diagram] (1)

Observation continued for an hour or two

[diagram] (2)

[diagram] (3)


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

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