RECORD: Darwin, C. R. [1878].09.24-26. Dionaea / Draft of Cross and self fertilisation. CUL-DAR209.3.162-163. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)
REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 12.2022. 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-DAR209.3 contains materials 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, pp. 51 and 49.
[162]
Vertical Glass Dionæa — Old Leaf
[data not transcribed]
(Used)
[162v]
[top of page excised]
intercrossing two of the grandchildren [text excised] any more than when two of the children of Hero were inter crossed. It appears therefore that Hero together with & its descendants have varied from the common type, not only in acquiring great power of growth and increased fertility, when subjected to self-fertilisation, but in not profiting from a cross with a distinct family; and this latter fact, if trustworthy, is a unique case, as far as I have observed.
11.33' an Hour alm 7 1/3 inch
[163]
25th continued Dionæa — Old Leaf
[data not transcribed]
(Used)
[163v]
Ipomoea
two sets of seedlings (namely self-fertilised and th offspring of brothers and sister), is given in the following Table.
Table 16.
No. of Pot |
Self-fert. Grandchildren from the self-fert. children of Hero. Eight generation |
Grandchildren from a cross between the self-fert children of Hero. Eighth generation |
I |
86 6/8 90 3/8 |
95 6/8 95 3/8 |
II |
96 77 2/8 |
85 93 |
III |
73 [excised] |
86 2/8 82 [excised] |
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 18 August, 2023