RECORD: Darwin, C. R. 1867. Cuphea purpurea - At first many flowers were fertilised. CUL-DAR76.B99. 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).

(64

Cuphea purpurea. —1867 At first many flowers were fertilised, owing to my not knowing when stigma was mature, so no account kept of numbers crossed & self-fertilised.—

None set spontaneously.—

Average of 6 crossed. 6.8.

― of 6 self-fert. 8.8.

So of few pods self- gives largest average.—

Crossed─

8

3

12

6

6

6

Self-fert (In greenhouse)

14

10

16

3

8

2

6/41

6/53

 

(Keep) [calculations not transcribed] 112.8 say 113

Introduce often Rosaceæ

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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 1 June, 2023