The Complete Work of Charles Darwin Online

RECORD: Darwin, C. R. 1878.05.28-29 Iris / Draft fragment of Cross and self fertilisation. CUL-DAR209.3.224. (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 on Circumnutation of leaves and hyponasty 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. 350.

[224]

~~Iris~~ Iris 28

10. 35'

12° 35'

2° near same spot

3°

24 3. 30

5 . 15'

5 . 55 completed small △

8 · 15

9 . 23 same spot

10. 50

6°· 40

8 .

9. 5

9. 55

11° ⎼⎼⎼⃒

11° ⎼⎼⎼ slided pot

12 ⎼

1°

2° ⎼⎼⎼⎼⎼⎼⎼ same spot

3' ⎼⎼⎼⎼⎼⎼ do

4°

5°

6. 5

7°

9°

10. 50'

6° 45 am ⨀

[224v]

occasions considerably more seeds than did the crossed flowers even than those which were crossed with pollen from a distinct stock or variety.

We thus see that varieties sometimes arise, which were self-fertilised possesses ~~with~~ an increased power.

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