RECORD: Darwin, C. R. [ny].06.22-23. Cycas pectinata [fig 143] / Draft of Cross and self fertilisation, folio 678. CUL-DAR209.3.130. (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 11.2022. 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, pp. 391-2.
[130]
Cycas pectinata
[diagram]
Jun 22d 8º. 30' a.m
7º. 15 P.m
9º
10. 30' P.m
6º 40' a.m 23d
7º 10'
6. 50' a.m. 24th
8º am
1/3 scale no lettering
[130v]
678 67
Chap. E 10
action of pollen, though it does not bear directly on our present subject, is that of a plant's own pollen over that from a distinct species. If pollen of a distinct species be placed on the stigma of a castrated flower, and then after the interval of several hours, pollen from the same species be placed on the stigma the effects of the flower are wholly obliterated, excepting in some rare cases. If two varieties are treated in the same manner, the result is analogous, though of directly [text excised] nature; for pollen from any other variety is
[left portion text excised]
over that from the same
instances: the pollen of
falls on the stigma of
ut is highly fertile
Now I fertilised several
rated, on a remarkably
pollen from a yellowish
igs thus raised every
so that the pollen of
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 2 February, 2026