RECORD: Darwin, C. R. n.d. Petunia / Lobelia fulgens (comparison of crossed and self-fertilised). CUL-DAR77.86-89. (John van Wyhe ed., 2002-. The Complete Work of Charles Darwin Online, http://darwin-online.org.uk/)

REVISION HISTORY: Text prepared and edited by John van Wyhe. 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).

86

Petunia

1st — generation —   Nor of Plant     Crossed total Height No of Plants             Crossed Self. Total Height

Petunia (first gen)       5          154      5          130

2nd genern.     4          162      6          157 4/8

3rd genern.      8          327 6/8            8          431

4th genern       15        701 7/8            14        453 4/8

8th genern.      13        581 5/8            13        349 3/8

5th genern.      22         1190 4/8         21        697 7/8

            67        3117.75           67        2219.25

                        average 46.53             average 33.12

 

 

Lobelia fulgens

1st generation             2          33 [+] 36 4/8   2          50 [+] 38 4/8

2nd generation            34        1014    34        921 5/8

            36        1083.5             36        1010.125

                        average 30.1               average 28.06

87

Petunia.

33.12000 [÷] 46.53 [=] 711    3 places

88

Lobelia fulgens

28.06000 [÷] 30.1 [=] 932    3 places

89

Petunia

1st Column    3117.75 [÷] 67 [=] 46.53

2nd Column    2219.25 [÷] 67 [=] 33.12

 

Lobelia

 

1st column    1083.5 [÷] 36 [=] 30.1

2nd column    1010.125 [÷] 36 [=] 28.06

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

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