RECORD: Darwin, C. R. [1874].10.16. Dionaea. CUL-DAR59.1.29. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)
REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 10.2022. 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 volumes CUL-DAR 54-61 contain material for Darwin's book Insectivorous plants (1875).
Dionaea muscipula is the Venus flytrap. These notes are for Darwin, C. R. 1875. Insectivorous plants. London: John Murray. (F1217)
[29]
Dionæa
Oct 16 — In morning placed a drop of sol. of Urea & of sugar at 2 ends of leaf (1 gr to 1 oz of both) on leaf & during night to my surprise closed, & certainly not touched. Nov 5 still closed opened it & found it quite dry— I mention only to show power of absorption & that urea apparently excites leaf.─
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 2 November, 2022