RECORD: Darwin, C. R. 1877.08.27-11.07. Erythrina corollodendron. CUL-DAR66.170. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)
REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 3.2023. 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-DAR66 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.
[170]
Erythrina corollodendron.
Aug 27'. 1877
Young but nearly full-sized leaves shook 2 for 1' 30" & all 3 leaflets bent down, & movement was not increased by squirting. Immense drops adhere to upper surface of leaves, & not readily removed by shaking plant but less than if leaflet were horizontal. Upper surface of leaflets not silvery, but moderately repellent; & lower surface slightly silvery.
Erythrina corollodendron 1877
Sept 11th. 11˚ A.m. — just sponged 4 leaflets — surface highly repellent & put on drops of water.
Sept 23d tried the 4 leaflets, marked with red-wool— no trace of injury Oct 2d. do
Oct 2d. 10˚ 40' put leaf on cork under drip — height 17 inches
― 25 removed leaf from drip, no sign of injury yet 23 days of dripping
Nov. 7 I can see no injury
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 6 July, 2023