The Complete Work of Charles Darwin Online

RECORD: Darwin, C. R. 1879.09.03-24. Picea nordmanniana. CUL-DAR209.6.157. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)

REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 12.2022. 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-DAR209.6 contains materials for Darwin's book Movement in plants (1880).

[157]

June 23d 1879 10° 30' P.m. Picea Nordmanniana

Tree in pot 18 inches high— Old leaves on Horizontal Branches— rise up & move a little backwards or towards stem of tree— Hence looking vertically down on tree apices of leaves seen, all directed to zenith.

With eye on level with ~~apex~~ ends of branches— leaves look white, because white under sides seen.—

July noon. — Next morning no plain differences in position of Leaves

Sept 3d did not sleep at night

Sept 24th. do. do— but I observe that leaves on last-year shoots stand at 10° P.m very vertically— same state next morning

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