RECORD: Darwin, C. R. 1867.05.17-1868.07.07. Scabiosa atro-purpurea / Crossed capitulum. CUL-DAR79.99-100. (John van Wyhe ed., 2002-. The Complete Work of Charles Darwin Online, http://darwin-online.org.uk/)

REVISION HISTORY: Transcribed by Christine Chua and John van Wyhe, edited by John van Wyhe 3.2023. RN2

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).


(80

Scabiosa atropurpurea (1867) (very unfavourable season)

Whole Heads fertilised, but number not recorded; but the crossed set pretty well, whilst the self failed greatly.

4 Crossed capitulum yielded average of 36.8 seed— Max. 54 min. 22

Self-produced only one small Head with 23 seeds

(May 17' The crossed seedlings as with Œnother after germinating have died. In Pot I. only one crossed & 3 self alive

in ― II only one crossed 2 selfs alive.) (& some in Pot II the one crossed is dead.)

July 7. /68/ Plants not yet in flowers. —tallest plant in each Pot.

 

 

 

Aug' 23

Pot.

Crossed—

Self

Crossed

self

 

 

 

33 to tips of flowers or seed capsules

34

Self first

 

 

 

32

25 1/2

Self. flowered first

 

 

 

33 1/2

31

Crossed first

 

 

 

  98 1/2

90 1/2

 


Tab. 64

80

68.5 [÷] 4 [=] 17.12 Average    61.5 [÷] 4 [=] 15.37 Average

98.5 [÷] 4 [=] 24.62 Average    90.5 [÷] 4

98.5 [÷] 3 [=] 32.83 Average    90.5 [÷] 3 [=] 30.16 Average


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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 23 December, 2025