The Complete Work of Charles Darwin Online

RECORD: Darwin, C. R. 1870.08.28. Drosera filiformis sent me by Asa Gray a very young & sickly plant. CUL-DAR60.1.134. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)

REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 12.2022. 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).

[134]

Aug. 28' 1870. Drosera filiformis sent me by Asa Gray, a very young & sickly plant, so time of contraction not trustworthy. Atoms of cold meat placed on single marginal & terminal pink glands with plenty of viscid viscous fluid, in 20' had all undergone considerable movement & curvature. — In 6 hours has ~~meld~~ moved through at about 90 degrees. In 24° the atoms of meat on the marginal hairs had come into contact with 9 & 11 ~~heads~~ glands in middle of leaf; & a terminal hair had moved through nearly 180 degrees, & the meat brought into contact with 12 glands. —

Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)