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Insectivorous plants
Summary
Darwin’s work on insectivorous plants began by accident. While on holiday in the summer of 1860, staying with his wife’s relatives in Hartfield, Sussex, he went for long walks on the heathland and became curious about the large number of insects caught by…
Matches: 26 hits
- … the large number of insects caught by the common sundew ( Drosera rotundifolia ). He reported to …
- … with a few observations on the insect-catching power of Drosera; & I must consult you some time …
- … interest himself about them. At present he is treating Drosera just like a living creature, and I …
- … that the sticky tentacles on the upper surface of the Drosera leaf bend over to trap insects. He …
- … of 1860 alone. Darwin started by asking Oliver to compare Drosera with Dionaea muscipula …
- … was all that was needed to cause decided movement of a Drosera leaf, adding that his facts were …
- … in the collection at Kew, such as the Australian Drosera , and tried to reproduce Darwin …
- … Asa Gray: ‘ I have been infinitely amused by working at Drosera : the movements are really …
- … turned his attention to the mechanism of movement in Drosera and as he was ‘ so ignorant of …
- … phenomenon where the ‘ elongated cells in the hairs of Drosera are filled, when expanded, with …
- … Darwin wrote to Charles Lyell: ‘ I will & must finish my Drosera M.S. which will take me a week …
- … nerve in the human body! ’ Although he read a paper on Drosera at a meeting of the …
- … so interested that he would resume the following summer when Drosera opened up again, exclaiming, ‘ …
- … bad … It will be a cruel blow to me, as I must give up Drosera, crossing Primulas & many other …
- … he told Hooker he could not avoid the conclusion ‘ Drosera possesses matter at least in some degree …
- … of his chemical tests, ‘ I intend to give up my beloved Drosera till I have got out a separate …
- … other track till you have worked out and published about Drosera & Dionæa ’. By August and …
- … Walmisley Baxter and borrowing different species of Drosera from Kew . After 4 or 5 weeks …
- … Darwin asked her to observe the North American species Drosera filiformis (the threadleaf …
- … had sent Burdon Sanderson an abstract of his work on Drosera , he embarked on a series of …
- … attempts to discover whether the digestive secretions of Drosera were analogous to those found …
- … study of digestion and analysed the fluid from Drosera to see if it contained a pepsin-like …
- … pitcher-plants) in parallel with Darwin’s study of Drosera and Dionaea and in the summer of …
- … lovely jelly ’, while Darwin could only reply: ‘ Poor Drosera & Dionæa cut quite an …
- … ‘ Most of Darwin’s experimental work was on Drosera and this was subject of the first …
- … injuriously on the protoplasm of animals than on that of Drosera , bolstering his argument that …
Women’s scientific participation
Summary
Observers | Fieldwork | Experimentation | Editors and critics | Assistants Darwin’s correspondence helps bring to light a community of women who participated, often actively and routinely, in the nineteenth-century scientific community. Here is a…
Matches: 4 hits
- … Treat details her observations of, and experiments on, Drosera filiformis . She also references …
- … reports in detail on her experiments with fly-catching Drosera . Letter 9426 …
- … a detailed report on her experiments with fly-catching Drosera . Letter 9485 - …
- … Treat details her observations of, and experiments on, Drosera filiformis . She also references …
Insectivorous Plants
Summary
Sources|Discussion Questions|Experiment Plants that consume insects Darwin began his work with insectivorous plants in the mid 1860s, though his findings would not be published until 1875. In his autobiography Darwin reflected on the delay that…
Matches: 8 hits
- … for the key species Darwin was most interested in: Drosera, Dionaea, Aldrovanda, and …
- … Darwin remarks that he has a wealth of material on Drosera and Dionaea that he may publish …
- … using carbonate of ammonia as a substitute for flies on Drosera . Letter 2932 - …
- … friend John Stevens Henslow about his observations of Drosera . Henslow was a professor of …
- … the motion he observes pouring out from the hairs on the Drosera is a known or common phenomenon …
- … Treat describes her observations of the fly-catching Drosera longifolia . She remarks that …
- … to thank her for her observations and information on Drosera filiformis . He warns her against …
- … of the advice he gives her regarding her observations of Drosera ? …
Darwin as mentor
Summary
Darwin provided advice, encouragement and praise to his fellow scientific 'labourers' of both sexes. Selected letters Letter 2234 - Darwin to Unidentified, [5 March 1858] Darwin advises that Professor C. P. Smyth’s observations are not…
Matches: 1 hits
- … Darwin thanks Treat for sending over information on the Drosera filiformis . In her position, he …
Darwin's in letters, 1873: Animal or vegetable?
Summary
Having laboured for nearly five years on human evolution, sexual selection, and the expression of emotions, Darwin was able to devote 1873 almost exclusively to his beloved plants. He resumed work on the digestive powers of sundews and Venus fly traps, and…
Matches: 9 hits
- … Darwin had resumed experiments on the common sundew, Drosera rotundifolia , in August 1872, but …
- … ( letter to J. D. Hooker, 12 January [1873] ). Drosera was the main focus of Darwin’s study of …
- … Darwin found that the glandular hairs on the leaves of Drosera were sensitive to slight pressure …
- … suggested by Darwin on the North American species Drosera filiformis . Hooker, with the …
- … discovering digestive properties analogous to those in Drosera . Darwin’s experiments on plant …
- … Darwin sent an abstract of his preliminary results on Drosera to Burdon Sanderson, who had …
- … to help analyse the composition of the digestive fluid of Drosera . Darwin washed countless …
- … he performed his own tests and eventually determined that Drosera secreted digestive acid in …
- … from Lathyrus sylvestris . He also fed bread to Drosera and staked out a portion of garden …
