RECORD: Darwin, C. R. 1855.05.17. Seed-heads of Tussilago farfara & Leontodon Careximum into salt-water. CUL-DAR27.1.F13. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)
REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 12.2021. 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.
[F13]
May 17th / 55 / In evening put quite open seed-heads of Tussilago farfara & Leontodon Careximum into salt-water: they soon began to close by next morning heads closed. These seeds floated whilst quite fresh, & this not owing to pappus as seed itself rose first.
Put old pods of Laburnum which were widely gaping into S.W. & they almost completely closed so that seed cd. not fall out. Pods of Broom & Kidney Bean did not open - none of these pods sunk.
Heads of Luzula with seed nearly ripe floated.
The Compositæ sunk after a few days & every seed sunk (even the capsule of Seakale after a few days — Hookers cellar Lot.
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 25 September, 2022