RECORD: Darwin, C. R. 1878.05.19-21. Strawberry Stolons / Draft of Cross and self fertilisation. CUL-DAR209.3.197. (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 12.2022. 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 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, p. 342.


[197]

Strawberry Stolons darkness

May 19th

   Left Hand reversed

Right longer horizontal refixed filament behind growing point

8º a.m

8   57   far to right

10 far up & to right

11º 10   up & to right

12.   down      Used

1 ·     same course

2      up   & to left

3      down

5 10    up

6º   up

7. 20   up & to right  

9. 20

10 35    2º· 21  red

 3º lower small dot

 4º    do   .   do

 5. 10    up

 6·

 7· 20   to right horizontal

   9. 20

   10. 35

20th

6º 45   jammed

    Right Hand long. & Horizontal

Left Hand — altered position so as to brng on glass.

8º   a.m.

8   57   vertically down far

10   up & to left

11º 10   far to left & almost horizontal

12.   down      travelled down

1º     down Used    

2º      up

3º  —     4.5 of inch

 up & down

   extra movement

4·   gone down on old line

5  10 —

7º  20

9 . 20

10 · 35 +

4 time up &  

5 time down  

bends 4 more  

or 13 true Lines  

6º . 45'

    from 8º a m to 1

20th M

  Left Hand   20th May

6.  55     red & Blue

8º      to left & red

9 . 12

10. 5  up

11

12    down.   & red

1º   down & to right

2º a little up on old line

    no red not marked

3º   to left, red marked

4º 15      do

5 · 15    same spot

 6    to right   no red

7º 17  to left   no red

8 . 25  last mark red & black

     for touches paper

21'  

   about

Used

 

  Right

6º  55    Red & blue

8º   a little down

9. 12

10. 5   up

11

12  —      down  — (&  red dot)

1º   little up  

2º   up ·

3    down             from 6. 55'

   to 4. 15

   .45 of inch 

4. 15   down   (red- dot)

5  15       up ·    no red

6·     move up a little

7º. 17'   down

8. 25   a little to left

9. 30   up.

11º   curved in to centre   (no red)

6º 45     . ⎼⎼  thus marked

8º   down & red mark

   about 5 time up & down

              from 6. 55' on   20·

    to 8º on 21

.82 of inch      Used

[197v]

(a) text

(The Self-sterility differs much in degree of in different plants. In those extraordinary cases in which pollen from the same flower acts on the stigma like a poison, it is almost certain that the plants would never yield a single self-fertilised seed. Other

(B Text)

The majority of species, as may be seen in Table F, are in some degree less fertile with their own pollen than with that of another plant; though some species are perfectly self-fertile. Even with the individuals of the same species, as has just been remarked, some are utterly self-sterile, others moderately so, & some perfectly self-sterile. The proximate cause of plants being sterile with their own pollen though in very various degrees,


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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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