The Complete Work of Charles Darwin Online

RECORD: Darwin, C. R. n.d. (1) Leaves try to arrange themselves so as to stand at equal distances. CUL-DAR45.145. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)

REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 10.2022. RN1

NOTE: See record in the Darwin Online manuscript catalogue, enter its Identifier here. Reproduced with permission of the Syndics of Cambridge University Library William Huxley Darwin. The volume CUL-DAR45 contains notes for Natural selection chap. 4 'Variation under nature'.

[145]

(1) Leaves try to arrange themselves so as to stand at equal distances from those on all sides above & below.

(2) ~~Leaves~~ Over each leaf another will be produced directly above at varying heights.

(3) At end of shoot very young leaf-bud stand on almost flat surface, & so much crowded that if new bud — formed, some wd have to to be developed above, for they cd not be developed below.—

(4) Young leaf-buds have power of arranging themselves & altering their position.—

(5) Primordial state of every plant with spiral leaves to have 2 alternate leaves —

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