Agnes Ibbetson
Encyclopedia
Agnes Ibbetson vegetable physiologist, daughter of Andrew Thomson, was born in London in 1757. She married a barrister named Ibbetson, who died before her. She herself died in February 1823 at Exmouth
Exmouth
Exmouth is a town in Devon. It may also refer to:Places*Exmouth Peninsula in Southern Chile*Exmouth, Western AustraliaPeople*Edward Pellew, 1st Viscount Exmouth , a British naval officerShips...

, where she had resided some years.

Between 1809 and 1822 Mrs. Ibbetson contributed more than fifty papers to Nicholson's Journal and the Philosophical Magazine
Philosophical Magazine
The Philosophical Magazine is one of the oldest scientific journals published in English. Initiated by Alexander Tilloch in 1798, in 1822 Richard Taylor became joint editor and it has been published continuously by Taylor & Francis ever since; it was the journal of choice for such luminaries as...

on the microscopic structure and physiology of plants, including such subjects as air-vessels, pollen, perspiration, sleep, winter-buds, grafting, impregnation, germination, and the Jussieuean method. In the botanical department of the British Museum
British Museum
The British Museum is a museum of human history and culture in London. Its collections, which number more than seven million objects, are amongst the largest and most comprehensive in the world and originate from all continents, illustrating and documenting the story of human culture from its...

 are preserved some specimens of woods and microscopic slides prepared by her, with a manuscript description stating that they represent twenty-four years' work, and illustrating her erroneous belief that buds originate endogenously and force their way outward.

The leguminous genus Ibbetsonia was dedicated to her by John Sims, but is now considered identical with the Cyclopia
Cyclopia (genus)
Cyclopia is a genus of flowering plants in the legume family, Fabaceae. It belongs to the sub family Faboideae. The description was published by Étienne Pierre Ventenat in 1808. The name Ibbetsonia, published two years later, is regarded as a synonym of this genus; John Sims had commemorated the...

of Ventenat.
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