Estella Leopold

As a conservationist, she is best known for her work obtaining protection for the stunning fossils near Florissant, Colorado, an area that became a national monument in 1969.

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Georgiana Molloy

Georgiana Molloy collected and despatched seeds of local native plantsin Western Australia and was known for her detailed botanical descriptions.

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Harriet Keeler

Keeler was a Cleveland educator, botanist, author, suffragist, and lover of nature. Each aspect of her self-made career brought her a measure of celebrity far beyond northeast Ohio.

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Ynes Mexia

One of the most successful botanists and female plant collectors of her time; she did not begin her career until she was 55 years old.

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Barbara McClintock

In 1983, at the age of 81, she received the Nobel Prize in Physiology or Medicine for her work on “mobile genetic elements,” that is, genetic transposition, or the ability of genes to change position on the chromosome. McClintock was the first woman to receive an unshared Nobel Prize in that category.

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Mary Sutherland

Her farm forestry work was probably her most important contribution because of the way it helped reshape attitudes towards land use and break down barriers between farmers and foresters.

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Lucy Moore

Lucy Moore was sometimes called ‘the mother of New Zealand botany’ and few botanists may ever again equal her range of expertise.

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