The Complete Work of Charles Darwin Online

RECORD: Darwin, C. R. n.d. Euryale ferox / Crossed flower / self-fertile. CUL-DAR76.B148. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)

REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 12.2022. 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 volumes CUL-DAR 76-79 contain material for Darwin's book Cross and self fertilisation (1876).

[148]

Crossed flower 27 2/3

Self-fertile 31 & 33

{& one self fr 67 seeds, quite unusual} Euryale ferox

some Nymphaea are absolutely sterile without aid of insects or wind, as...

Many species self fertilise themselves without aid of any kinds.

Some sp. fertilise themselves imperfectly without aid. —

All this may belong to mechanical causes

Euryale ferox quite self-fertile

(Orchid) Caspary - abstract of letter on Nymphaea

[Cross and self fertilisation, p. 358: "Nymphaea (Nymphaeaceae).—Professor Caspary informs me that some of the species are quite sterile if insects are excluded."]

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