RECORD: Darwin, C. R. n.d. Imatophyllum. CUL-DAR209.3.222. (John van Wyhe ed., 2002-. The Complete Work of Charles Darwin Online, http://darwin-online.org.uk/)
REVISION HISTORY: Prepared and edited by John van Wyhe. 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-DAR209.3 contains materials on Circumnutation of leaves and hyponasty for Darwin's book Movement in plants (1880).
222
K Imatophyllum crystanthiflor
[sketch] C 36 cm B 32cm A
24 7 ½
7th pair pair of leaves, calling oldest N° 1
AB = 16½ in
BC = 15
6
5
1
7
3
2
actual position of dots
Oct 8
time dots
1 10. 7 AM
2 11.45
1 3 2.20 [illeg]
again [illeg] 1 — 3.50
6.30 5
6 10. PM
Oct 9 dot
8.15 AM 6
2 11. 30 & 3
4. 13. 7
8.45 PM 5
Oct 10. dots
8 15 AM S of 5
S of 11. 15 3
2 12·55
5.30 7
10. 30 n of 1
Another leaf on another plant sunk & rose in same way (by pin observation)
Extreme vertical displacement of tip of leaf = 2 cm
[sketch]
AX = 13 cm
AT = 6
+ X A
?B C?
from dot 2 to dot 6
AC would be 36 & then
38 cm. BC = 32
13
about 45
222v
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 29 January, 2026