The Complete Work of Charles Darwin Online

RECORD: Darwin, C. R. 1872.06.16. Dichogamy. CUL-DAR49.125. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)

REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 1.2022. 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-DAR49 contains notes for Natural selection chap. 3 on 'On...organic beings occasionally crossing' or dichogamy.

[125]

Dichogamy

June 16 /72/

Looked at premature flowers, one in about middle of each sub-head of Sweet-William, & found fl. exclusively ♂ stamens mere rudiments - one fl., however, had 2 nearly perfect stamens. Stamens now of little use - yet their early flowers on same tuft or on adjoining plants might have partially fertilised each other. Is not case like that of Carrot & peloric Pelargoniums (?) due to some law of development of central flower - If we cd see on a Proterogynous plant - Pistils aborted case wd be stronger.

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