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
4º
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 —
6º
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,
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 20 December, 2025