RECORD: Darwin, C. R. 1862.09.04-07. All this paper Drosera longifolia. CUL-DAR60.1.129-130. 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).
[129]
Thursday 4th 1° 49 fly on leaf holding this position [sketch]
Sept 5th 8° 30' a.m nearly all the hairs curled in, but leaf in same position
do 5th, 8° 40' — put fly on another leaf, which was only slightly reflexed — marked by match not exploded — [sketch]
Sept 6' 8° 40'. This leaf now as much reflexed at end inwards, as it was before outwards— [sketch]
Lateral edge of leaf do not become at all inflexed.
Sept 7th I see all the red matter in cells of this leaf which had caught fly broken up into globules, which change form as in other species — It is all nonsense about under side of hair being colourless
[129v]
Southampton. Sept 5 1862
All this paper Drosera longifolia
[130]
I see Drosera grows in pools of peat, where nothing else can grow or where only Sphagnum can grow — from Flies caught—
When atom of raw meat put on gland or gland even touched, in a few seconds, I could see through lens movement commence; a bit of paper produced same ac motion but far more slowly. ─
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 14 February, 2023