RECORD: Darwin, C. R. 1869.11.21-1871.07.19. Digitalis purpurea. CUL-DAR79.167. (Cite as: John van Wyhe ed., 2002-. The Complete Work of Charles Darwin Online, http://darwin-online.org.uk/)
REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 3.2023. 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 volumes CUL-DAR 76-79 contain material for Darwin's book Cross and self fertilisation (1876).
Jan 31— 1870 Measured to tips of Leaves
As planted separately no severe competition. Plants turned out of Pots as in last page — Now measured to tips of flower-stems
Pot |
Crossed |
Self |
Crossed |
|
Selfs |
|
|
|
|
No' of stems |
Height No of stems |
Height |
|
6 crossed |
7 |
|
8 |
58 6/ |
8 |
60 |
|
|
|
|
56 |
|
55 4/ |
7 crossed |
5 3/ |
|
13 |
57 6/ |
3 |
46 5/ |
|
|
|
|
58 |
|
23 |
8 crossed |
6 |
|
5 |
50 |
1 |
46 6/ |
|
|
|
|
[excised] |
|
45 2/ |
6 self |
|
6 1/ |
|
[excised] |
8 |
[excised] |
7 self |
|
6 3/ |
|
[excised] |
3 |
[excised] |
8 self |
|
5 1/ |
|
[excised] |
12 |
[excised] |
|
18 3/8 |
17 7/8 |
26 |
|
23 |
[excised]1/8 |
July 19— 1871. (2 flower-stems measured in each pot.)
Digitalis purpurea (see Port about fertility of first crosses) Seeds. germ. on sand.
Nov. 21. 1869. The crossed plants in most pots are perhaps a shade finer than selfs — now about 5 inches to tips of leaves.
Measured to tips of Leaves, 2 finest plants on each side
Jan. 31 1870
Pot |
Crossed |
Self |
Crossed |
|
Self-fert |
|
|
|
|
No' of flower stems |
Height of do |
No' of stems |
Height of do. |
2 |
8 6/8 |
7 3/8 |
2 |
[excised] |
1 |
[excised] |
|
7 |
6 |
1 |
[excised] |
4 |
[excised] |
|
|
|
6 |
[excised] |
0 |
[excised] |
|
|
|
2 |
[excised] |
0 |
[excised] |
1 |
7 4/ |
6 5/ |
1 |
[excised] |
1 |
[excised] |
|
6 5/ |
7 |
1 |
[excised] |
1 |
[excised] |
|
|
|
8. |
[excised] |
1 (half) |
[excised] |
3 |
6 3/ |
6 5/ |
4 |
[excised] |
4 |
[excised] |
|
5 5/ |
6 |
7 |
[excised] |
0 |
[excised] |
|
|
|
4 |
[excised] |
0 |
[excised] |
|
|
|
1 |
[excised] |
0 |
[excised] |
5 |
5 6/ |
7 2/ |
9 |
[excised] |
2 |
[excised] |
|
6 5/ |
6 4/ |
5 |
[excised] |
1 |
[excised] |
|
|
|
(no fl.) but plnt alive. |
[excised] |
0 |
[excised] |
4 |
7 4/ |
5 4/ |
4 |
[excised] |
0 |
[excised] |
|
6 4/ |
5 2/ |
3 |
[excised] |
0 |
[excised] |
|
|
|
6 |
[excised] |
0 |
[excised] |
|
68 1/8 [÷] 10 |
64 1/8 [÷] 10 |
64 |
[excised] |
|
|
July 17. 1871. This second measurement was when flower-stems fully grown. The tallest on each plant measured.—
The plant had been turned out of pots into open ground; the balls not being disturbed.— Originally an equal number of plants had been planted; & all survived for a long time when planted out but many of the self were smothered, as soon as flower stems were developed. In Pot 4. all the self- died, but there was dead remnant of an attempted flower stem.— None of crossed died; & all grew magnificently covered with flower & pods.
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 11 December, 2025