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Orchids
Summary
Why Orchids? Darwin wrote in his Autobiography, ‘During the summer of 1839, and, I believe, during the previous summer, I was led to attend to the cross-fertilisation of flowers by the aid of insects, from having come to the conclusion in my…
Matches: 12 hits
- … about the visits of insects which quite puzzles me.— The Fly-Ophrys seems hardly ever to get its …
- … Ophrys muscifera (a synonym of O. insectifera , the fly orchid) and noted that only a small …
- … and on the good effects of intercrossing . The ‘Orchid book’, as Darwin usually referred to it, …
- … more beautiful, than in Woodpecker. ’ But at least one orchid was problematic. Darwin continued, ‘I …
- … Gathering Evidence The conundrum of the bee orchid was only one curious point. Darwin soon …
- … structure of the rostellum (a projection in the column of an orchid that separates the anthers from …
- … stay at Torquay did paper on Orchids all rest of year Orchid Book’ –as was so often the case with …
- … concerned Darwin, though, since he proposed to add a gold orchid to the cover of the edition. The …
- … all his other works; the cloth was plum-coloured with a gilt orchid on the front. The flower …
- … ‘ I am half-dead with working with M r Sowerby at the Orchid drawings ’. He worried, ‘The …
- … of its different flower forms. While the vast majority of orchid flowers are hermaphrodite, those of …
- … remarkable sexual forms of Catasetum tridentatum , an orchid in the possession of the Linnean …
From morphology to movement: observation and experiment
Summary
Darwin was a thoughtful observer of the natural world from an early age. Whether on a grand scale, as exemplified by his observations on geology, or a microscopic one, as shown by his early work on the eggs and larvae of tiny bryozoans, Darwin was…
Matches: 3 hits
- … Darwin was the existence of nectaries with no nectar in many orchid species. He devised several …
- … sundew) in 1860, around the same time he began work on orchid morphology. In a letter written in …
- … the nerve-like response of a leaf of Dionaea (Venus fly trap) when stimulated with an induction …
Darwin in letters, 1860: Answering critics
Summary
On 7 January 1860, John Murray published the second edition of Darwin’s Origin of species, printing off another 3000 copies to satisfy the demands of an audience that surprised both the publisher and the author. It wasn't long, however, before ‘the…
Darwin in letters, 1869: Forward on all fronts
Summary
At the start of 1869, Darwin was hard at work making changes and additions for a fifth edition of Origin. He may have resented the interruption to his work on sexual selection and human evolution, but he spent forty-six days on the task. Much of the…
Matches: 2 hits
- … in 1862. Darwin asked his son William to examine the British orchid Epipactis palustris on the …
- … sofa for a bit— after ½ an hour Tommy was caught & as the fly Father ordered was very long in …
