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Movement in Plants
Summary
The power of movement in plants, published on 7 November 1880, was the final large botanical work that Darwin wrote. It was the only work in which the assistance of one of his children, Francis Darwin, is mentioned on the title page. The research for this…
Matches: 10 hits
- … that in a number of species these embryonic leaves, known as cotyledons, moved in ‘closely analogous …
- … ‘ I expect to find such movements very general with cotyledons & I am inclined to look at them …
- … of the wonderful automatic movements of the stem & cotyledons of all the plants which we have as …
- … puzzle for Darwin was to distinguish autonomous movements of cotyledons and radicles (embryonic …
- … movements of true leaves, for I have pretty well done with cotyledons. Alas Frank is off tomorrow to …
- … in many cases he noticed no influence of heliotropism on cotyledons, Darwin wrote to determine how …
- … who cited special circumstances, and affirmed, ‘ that Cotyledons and young leaves turn to a lateral …
- … & makes a good essay. …I have begun cauterizing tips of cotyledons of Phalaris & I think(?) …
- … it is only one little point which I somehow overlooked: the cotyledons, when old & large, sink …
- … is here absent, as I hope & as ought to be the case as the Cotyledons are not with-drawn from …
Darwin in letters, 1878: Movement and sleep
Summary
In 1878, Darwin devoted most of his attention to the movements of plants. He investigated the growth pattern of roots and shoots, studying the function of specific organs in this process. Working closely with his son Francis, Darwin devised a series of…
Matches: 3 hits
- … on 9 May. He later noted that in many Cacteae the cotyledons (the embryonic leaves in seedlings) …
- … [1878–80] ). While Darwin was studying the function of cotyledons, he began to examine another …
- … it, & from what I have seen roughly in the petioles of the Cotyledons of oxalis, I conclude that …
Power of movement in plants
Summary
Sources|Discussion Questions|Experiment Family experiments Darwin was an active and engaged father during his children's youth, involving them in his experiments and even occasionally using them as observational subjects. When his children…
Matches: 2 hits
- … Darwin writes to Francis to suggest that observing the cotyledons of Oats bending toward the light …
- … to [seedlings] in their struggle for life to expose their cotyledons to the light as quickly and as …
1877 letters now online
Summary
Flowers, bloom, a son married . . . and a suspended monkey in Cambridge at Darwin's honorary LLD ceremony. The transcripts and footnotes of over 600 letters written to and from Darwin in 1877 are now online. Read more about Darwin's life in 1877…
Matches: 1 hits
- … bits of glass, they captured the circumnutating motion of cotyledons (embryonic leaves), stems, and …
Darwin in letters, 1877: Flowers and honours
Summary
Ever since the publication of Expression, Darwin’s research had centred firmly on botany. The year 1877 was no exception. The spring and early summer were spent completing Forms of flowers, his fifth book on a botanical topic. He then turned to the…
Matches: 2 hits
- … , Darwin described how the movements of the seed-leaves or cotyledons of red cabbage were traced …
- … ‘I expect to find such movements very general with cotyledons’, he continued, ‘& I am inclined …
Darwin in letters, 1880: Sensitivity and worms
Summary
‘My heart & soul care for worms & nothing else in this world,’ Darwin wrote to his old Shrewsbury friend Henry Johnson on 14 November 1880. Darwin became fully devoted to earthworms in the spring of the year, just after finishing the manuscript of…
Matches: 1 hits
- … beneath the surface, and others deeper—, but none of the cotyledons were lifted up. … The sole use …
