RECORD: Darwin, C. R. [ny].04.03-05.31. Glaucium luteum. CUL-DAR68.62-63. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)
REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 4.2023. RN1
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-DAR68 contains notes on 'bloom'. Francis Darwin explained: "His researches into the meaning of the 'bloom,' or waxy coating found on many leaves, was one of those inquiries which remained unfinished at the time of his death. He amassed a quantity of notes on the subject". LL3: 339. See an Introduction to these folders by Christine Chua & John van Wyhe.
[62]
Glaucium luteum
Seedlings raised in sand & true — no bloom.
April 3d 2 plants with sticks salt water on both Cotyledon in morning & apparently run ran down on axes —
(Ap 6th 4° P.m. 1 plant apparently killed, 2d plant with 1 Cot killed)
Ap 8th. Both plants utterly killed & prostrate.)
April 4 or 5th 4th mark in sand (pins). salt-water on 1 cotyledon alone
Ap 6th both these Cots, seem injured —
9th the tips of both cots certainly blackened & injured much & whole cots on this side have grown less than the opposite Cots.
Ap. 12th the 1 cot. of the 2 plants, plainly smaller than opposite one, but with only the tip dead or terminal position dead. —
[63]
Salt
Glaucium luteum
True from Kew seeds seedlings, now bearing 4 or 5 true leaves
May 20th 1878 12° 15' salt water on 4 leaves (red worsted) sponged with tepid water first.
24th I think all leaves a little yellow
25th noon, certainly yellow spreading from spot where salt-water lies to near apex.
31st Now brown spot on the yellow spaces.
Impossible to get salt-water to remain on until bloom removed
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 11 July, 2023