RECORD: Darwin, C. R. [1877?].10.31. Lycopodium (Selaginella) / Draft of Cross and self fertilisation. CUL-DAR209.4.241-242. (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 9.2022. 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-DAR209.4 contains materials for Darwin's book Movement in plants (1880).
Draft of Cross and self fertilisation in the hand of Ebenezer Norman with corrections by Darwin.
[241 and 242]
Lycopodium Selaginella
Oct 31
Fig. 41
8. 45' a.m
11º. 29
1º
4. 55
() 8. 45 P.m 10º P.m. Oct 31
(same scale no lettering)
Selaginella (Kraussii?): circumnutation of very young g plant,— traced in darkness, from 8º 45' a.m to 10º P.m. Oct 31st—
[242v]
[text excised]
[Table]
Again, all the crossed plants are again higher than their antagonists; and their average height is 77.41 inches, whereas that average height of the self-fertilised is 52.83 inches, or as 100 to 68.
I attended closely to the fertility of the plants of this third generation. Thirty flowers on
[Cross and self fertilisation, p. 32: "Again all the crossed plants are higher than their antagonists: their average height is 77.41 inches, whereas that of the self-fertilised is 52.83 inches, or as 100 to 68.
I attended closely to the fertility of the plants of this third generation. Thirty flowers on the crossed plants were crossed with pollen from other crossed plants of the same generation, and the twenty-six capsules thus produced contained, on an average, 4.73 seeds; whilst thirty flowers on the self-fertilised plants, fertilised with the pollen from the same flower, produced twenty-three capsules, each containing 4.43 seeds."]
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 3 February, 2026