RECORD: Darwin, C. R. [ny].05.05. Mahonia. CUL-DAR209.11.207. 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-DAR209.11 contains material for Darwin's book Movement in plants (1880).


[207]

Mahonia May 5. 9° a.m

[sketch] 10 20

Young flower pollen not shed.

9. 15 has moved towards stigma about 1/500 of in reset it 9°. 16'

9° 24' to right hand nearly 1/1000 of inch

9 30 nearly 1/500 to right

9 40 1/500 to Right

9. 59' 1 1/4 /500 to right & about 2/500 from stigma

10. 14' 1 1/2 /500 to right & off scale, so about 4/500 from stigma

10. 15 readjusted or reset

10. 30 from stigma

10. 48' again beyond scale from stigma, ie stamen expanding — Reset

11° 29 same course — reset

11. 48' same course & to right

From Pistil in appearance is really to pistil

[207v]

Old flower Pollen shed

[sketch] 10 20

11° 58'.

12° 50' moved to right about 1/2 /500

1 32— a little to right & from pistil

2. 50 to right 1/500 & little from pistil

Conclusion

There is no circumnutation plainly visible in stamens of young or oldish flowers of Mahonia.


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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 21 August, 2023