Francis W. Pennell
Francis Whittier Pennell (4 August 1886 – 3 February 1952) was an American botanist best known for his studies of the Scrophulariaceae. Employed by the New York Botanical Garden and then by the Academy of Natural Sciences of Philadelphia, he carried out botanical research in both North America and South America.
Pennell was born to a Quaker family on their farm near Wawa, Pennsylvania. Considered delicate by his family, he was excused from farm chores, which engendered in him a lifelong fear of water and incapacity with mechanical devices. Pennell was educated at Westtown School and then at the University of Pennsylvania, from which he received a B.S. in 1911 and a Ph.D. in 1913. Encouraged by John M. Macfarlane, the head of the botany department, Pennell wrote his doctoral thesis on the Scrophulariaceae (as then circumscribed), a group on which he was to become a world authority.
In 1921, Pennell became Curator of Plants at the Academy of Natural Sciences of Philadelphia. Undeterred by his phobias, Pennell engaged in a series of field researches on North American Scrophulariaceae, publishing an important monograph, The Scrophulariaceae of Eastern Temperate North America, in 1935.
- Wherry, Edgar T. (1952), "F. W. Pennell", Castanea 17 (1): 66–67
- Camp, W.H. (May 1952), "Francis Whittier Pennell", Taxon 1 (5): 83
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