RECORD: Darwin, C. R. [1878].06.07-09. Drosera rotundifolia / Draft of Cross and self fertilisation, 2d ed. CUL-DAR209.3.175-176. (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 12.2022. 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-DAR209.3 contains materials for Darwin's book Movement in plants (1880).
Draft is in the hand of Ebenezer Norman with corrections by Darwin. The text of the draft corresponds to Cross and self fertilisation, 2d ed., pp. 380 and 382.
[175]
Drosera young leaf tents close
June 7th 9° 15 O
10: 20' up
11 20 up
12° 5 do
1. 30 far up
3° to left & down
4 down, parallel to up line
5 rises risen again. & to left
6. 7' same course
7' 15 down & to right
9° far up
10. 45 up & to right.
June 8th
Used
6° 40
8. down (tentacles still closed
9' do a little
10° up.
11 . 15 up
11 . 32 up. much
12 . 12 up & to left
1° down
2. 5 further down
2 .55 same spot
3 45 still down
4. 55 do.
6° do
6. 30' — up
7. 15 down. little
9° down & to right
10. 40' up
9th 6°. 45
8. 30
many t. projecting at right angles
[175v]
[fragment only]
* page 48
Fritz Müller has discovered, (Jenaische Zeitsch. B. IV. p. 451) (in the animal kingdom) a case curiously analogous with this to that of plants bearing cleistogamic and perfect [text excised]
[176]
Drosera June 9th new, old leaf Horizontal (disturbed)
9° 12' first mark
10° not moved
10° 35' new dot more magnified
11. 35 to left & down
12. 40 an atom down
1. 35 almost same spot
2. 15 do
3. 5. do
4° an atom down dot
6° 5 an atom to right & down
7. 12 little lower
10. 40' do
Used
10th
6° 55' marked ⨀
slided Pot 10th
6° 55' 7° A.m C. of ammonia
8 8° 5' risen & to right, may be evaporated & loss of weight
9° risen & to right most glands blackened & many closing inflated.
9° 260 a little to left
10. 15 an atom up & to right
11. 30 up.
12 50 up much
1. 40 up
2 40 up
3.6 down & to left
3 53 down & to right
5° up & to right
6. 15 up & to left
7 20' to left & down, this marked —
[176v]
self-fertilisation, and ordinary flowers which are adapted so as to allow of at least occasional cross-fertilisation; the two thirds of flowers being produced by the same plant.* The former are always minute, completely
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 20 December, 2025