The Complete Work of Charles Darwin Online

RECORD: Darwin, C. R. [1878?].12.19. Cabbages. CUL-DAR209.8.59. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)

REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 7.2022. 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 volumes CUL-DAR209.7-8 contain notes on heliotropism (phototropism) for Darwin's book Movement in plants (1880).

[59]

Dec 19' I have notes somewhere describing effects of cutting off cotyledons & upper part of stem of red cabbage

To day the pot was again reversed & all bent to light, including shorter & younger one with white thread the other with white thread was broken by an accident. But the 3 with black thread not in the least curved to light— It is certain that cutting off about.15 (for measurements not very careful) stops Heliotropism of lower part of stem

Cabbages

Cutting off

Chiefly Painted—

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