RECORD: Darwin, C. R. 1867-1868.07.08.23. Passiflora gracilis. CUL-DAR79.49-50. (John van Wyhe ed., 2002-. The Complete Work of Charles Darwin Online, http://darwin-online.org.uk/)
REVISION HISTORY: Transcribed by Christine Chua and John van Wyhe, 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).
(53
Passiflora gracilis 1867
White Thread |
Black Thread |
No Thread |
Crossed. |
Artificially Self-fert |
Spontaneously self-fertilised |
16 |
35 |
26 |
[=] 338 [÷] 14 [=] 24 1/7 24.1 |
94 [÷] 4 [=] 23.5 |
247 [÷] 12 [=] 20.58 |
Average 24.14 from 14 pods |
Average 17.66 Thrown away because so |
|
few & the pod with 35 seeds makes suspect a cross |
average from 12 Pods |
|
omitting 2 pods with less than 10 seeds |
|
|
247
94 [=] 341 [÷] 16 [=] 21.3 Artificially & spont, fertilised together. 16 flower
[53v]
117 [÷] 3 [=] 39.0 129 [÷] 3 [=] 43
98 [÷] 2 [=] 49. inch 102 [÷] 2 [=] 51
48 [+] 8 [=] 56
(53 A
Passiflora gracilis
Nov. 16. Pot I, II, & III, sown on opposite sides with seeds as bef in last page. In Pot III, the seeds retained red pulp, except at corner where label stands, & here they had been cleaned.—
July 8 68
Only 2 Plants on each side of one have germinated.
Crossed 4 ft ─ 8 inches 1 ─ 6 |
Self 3 ─ 2 2 ─ 3 |
Aug 23 3 ft 7 |
5.4 |
The crossed flowered first
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 15 December, 2025