RECORD: Darwin, C. R. 1878.06.01-04. Lotus / Proof sheet of Forms of flowers and Draft of Cross and self fertilisation. CUL-DAR209.4.206-207. (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 9.2022. 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-DAR209.4 contains materials for Darwin's book Movement in plants (1880).
[206]
Lotus 2d 5 5/8 of inch
Jun 1st
. 35'
2. 15 to left
3. 15 do
3. 53 risen a good deal
do do 4. 25
5 23 very high up, but viewed obliquely
6. 30 vertical
June 2
6. 45 a.m fallen tremendously
8° 20 fallen a little
9. 40 am atom up
slided pot further off & to right
9° 40
10. 28 risen a little
11. 30 up considerably
12. 45 fallen to near where was at 9° 40'
1. 52 still lower
2. 45 up
3. 30 up
4. risen greatly
5 do
6° do
7. 5 do
8. 55 highly inclined no mark
June 3d
6° 45 fallen greatly during night
8' 50 tremendous fall
9 55 down
11 down & to right
[206v]
[Proof sheet of Forms of flowers, p. 338]
[207]
June 3d continued / Lotus
June 3d continued/ Lotus
12° up vertically
1° very up
2° up.
3' risen greatly
3. 50 do
5. 5 up
6° far up
7. 12 very far up
9. 5 P.m. to right & upLotus June 4th
Lotus June 4th
6°. 50 ⨀
8. 25 a little down & to left red
10. 15 far down
10 55 down & to left
11. 25 up. little
12° risen a bit
1° to left
1. 27 an atom down
1 58 risen & to left
2 30 an atom right
3. 10 little up
3. 55 fallen & to right
5 10' up & to left
6 . 5 up— short way
8° 20' nearly same place not marked
On 4th 17 1/2 C. greater part of day
on 2d day circumnutated on spot till fr 9° to 2°
(on 2d day great nutation rise had ceased)
[207v]
compared. The self-fertility of Primula veris increased after several generations of illegitimate fertilisation, which is a process closely analogous to self-fertilisation, but only as long as the plants were cultivated under the same favourable conditions. I have also elsewhere shown* (*Journal Linn Soc Bot Vol X 1867 p. 417 & 419) that with Primula Veries & sinensis, equal-styled varieties occasionally appear which possess the sexual organs of the two forms combined in the same flower. Consequently they fertilise themselves in a legitimate manner and are highly self-fertile but the remarkable fact is that they are rather more fertile than ordinary plants of the same species legitimately fertilised by pollen from a distant individual.
[Cross and self fertilisation, p. 351: "The self-fertility of Primula veris increased after several generations of illegitimate fertilisation, which is a process closely analogous to self-fertilisation, but only as long as the plants were cultivated under the same favourable conditions. I have also elsewhere shown* that with Primula veris and sinensis, equal-styled varieties occasionally appear which possess the sexual organs of the two forms combined in the same flower. Consequently they fertilise themselves in a legitimate manner and are highly self-fertile; but the remarkable fact is that they are rather more fertile than ordinary plants of the same species legitimately fertilised by pollen from a distinct individual."]
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 20 December, 2025