RECORD: Darwin, C. R. 1857.09.16. In 1856 I had 4 onion growing close together & flowering together. CUL-DAR76.B162. 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 volumes CUL-DAR 76-79 contain material for Darwin's book Cross and self fertilisation (1876).


[162]

In 1856 I had 4 onion growing close together & flowering together. I saved some seed from each, & now Sept, 16th 1857, I have compared Plants.

"Blood" least affected:

8 apparently nearly pure

1 in colour much affected

1 like pure silver-skin [total] 10 The Blood is a flat splendid red-coloured onion

The only convex one "Globe"

1 like silver

2 red from blood but & flattened5 red from blood but convex

[total] 8 "Globe" is a convex brownish onion

As Both of these must have had cross from Globe "Silver" Colour not affected

6 flat

11 convex from Globe

[total] 17 Silver a white depressed onion

"Spanish"

1 apparently true

4 silver, but shape various so apparently cross from Globe

3 very like Globe

3 blood in colour but shape rather various as if from Globe

[total] 11 Spanish depressed almost white a pale brown onion

 

Total 10 [+] 8 [+] 17 [+] 11 [=] 46 of these were some way affected} 2 [+] 8 [+] 11 [+] 10 [=] 31 affected 31/46 crossed yet remember one corymbose flowers.


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

File last updated 1 June, 2023