RECORD: Darwin, C. R. 1878.06.11-30. Beans / Temp / Draft of Cross and self fertilisation. CUL-DAR209.5.31. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)
REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 5.2023. 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. The volume CUL-DAR209.5 contains materials on movements of radicals for Darwin's book Movement in plants (1880). Draft is in the hand of Ebenezer Norman with corrections by Darwin. The text of the draft corresponds to Cross and self fertilisation, p. 377.
[31]
June 1878 Temp
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[31v]
* page 45
An experiment made by Kölreuter (Fortsetsung &c 1763 p. 69) affords good evidence on this head. Hibiscus vesicarius is strongly dichogamous, its pollen being shed before the stigmas are mature. Kölreuter marked 310 flowers, and put pollen from another flower on their stigmas every day, so that they were thoroughly fertilised; & he left the same number of other flowers to the agency of insects. Afterwards he counted the seeds [text excised]
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 25 July, 2023