RECORD: Darwin, Francis. n.d. CD on heterostylism. CUL-DAR200.3.66. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)
REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 7.2023. 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.
[66]
CD on heterostylism proves that fertility depends on the nature of the sexual organs and not on conditions, But X and self fert a show that change of conditions does increase fert ∴ change of conditions must act on sexual elements
[66v]
[list of numbers not transcribed]
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 15 August, 2023