RECORD: Darwin, C. R. 1878.06.11-13. Oxalis Valdiviana / Draft of Cross and self fertilisation, folio 633. CUL-DAR209.14.95-97. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)

REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 7.2023. RN1

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-DAR209.14 contains material 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. 365.


[95-97]

Jun 11' to morning of 13th 1878 Oxalis Valdiviana circumnutation of leaflet

[97v]

52 663

Chap. E 10

Euryale ferox (Nymphaeaceæ) Prof. Caspary informs me that this plant is highly self-fertile when insects are excluded. He remarks In in the paper before referred to under Victoria regia that his plants (as well as those of the Victoria regia) produce only one flower at a time; and that as this species is an annual, and was introduced in 1809, it must have been self-fertilised for the last 56 generations; but Dr. Hooker informs assures me that to his knowledge it has been repeatedly introduced, a and that at Kew the same plant both of the Euryale and of the Victoria produce several flowers at the same time.

Nymphæa,  (do), some species, as I am informed by the same botanist Prof. Caspary, are quite self-fertile when insects are excluded.

Adonis æstivalis (Ranunculaceæ) produces, according to Prof. H. Hoffmann (Speciesfrage p. 11), produces plenty of seeds when protected from insects.

Ranunculus acris (do). formed produces plenty of seeds under a net.


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

File last updated 17 August, 2023