SMITHSONIAN INSTITUTION / SCIENCE PHOTO LIBRARY SMITHSONIAN INSTITUTION / SCIENCE PHOTO LIBRARY
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Women botanists at the US Department of Agriculture (USDA). These three female botanists are (clockwise from left): Agnes J. Quirk (1884-1974), Helen Morgenthau Fox (1884-1974), and Florence Hedges (1878-1956). Quirk was assistant to the senior plant pathologist from 1901 to 1927, and was head of the laboratory from 1928 to 1948. Fox published widely on the topic of gardening with herbs. Hedges worked at the USDA for much of her career. She is best known for discovering the pathogens of two diseases of bean plants, bacterial wilt and halo blight.
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