RECORD: Darwin, C. R. [1875-1876]. Draft of Cross and self fertilisation, folio 42. CUL-DAR77.55. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)
REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 2.2023. 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 volumes CUL-DAR 76-79 contain material for Darwin's book Cross and self fertilisation (1876).
(42
themselves were heavier, so that 29 of them equalled in weight 100 of the seeds from the crossed flowers. The Some of the latter first swelled & then germinated before = 1st gen the self-fertilised seeds, (ie those produced by the self-fertilised flowers*) so that & I have on several other occasions observed that lighter & smaller seeds germinate quicker than heavier & larger ones of the same species. (Ipomœa)
These two lots of seeds were allowed to germinate on bare sand
[in margin:] Ipomœa This almost certainly applies to parent plant
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 9 October, 2023