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. (From Wikipedia)
More about Francis W. Pennell:Books by Francis W. Pennell:
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Pennell, Francis W. (Francis Whittier), 1886-1952: The Scrophulariaceae of the Western Himalayas (Academy of Natural Sciences monograph #5; 1943)
Additional books by Francis W. Pennell in the extended shelves:
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Pennell, Francis W. (Francis Whittier), 1886-1952: Flora of the Conowingo Barrens of Southeastern Pennsylvania (The Academy], 1911), also by Academy of Natural Sciences of Philadelphia (page images at HathiTrust)- Pennell, Francis W. (Francis Whittier), 1886-1952: The Scrophulariaceae of eastern temperate North America (Philadelphia, 1935) (page images at HathiTrust)
- Pennell, Francis W. (Francis Whittier), 1886-1952: Scrophulariaceae of the central Rocky mountain states (Govt. print. off., 1920), also by United States National Herbarium and United States National Museum (page images at HathiTrust)
- Pennell, Francis W. (Francis Whittier), 1886-1952: Scrophulariaceae of the local flora (New York Botanical Garden, 1919), also by New York Botanical Garden (page images at HathiTrust)
- Pennell, Francis W. (Francis Whittier), 1886-1952: Scrophulariaceae of the southeastern United States (Academy of Natural Sciences of Philadelphia, 1920) (page images at HathiTrust)
- Pennell, Francis W. (Francis Whittier), 1886-1952: Scrophulariaceae of the West Gulf States. (1921) (page images at HathiTrust; US access only)
- Pennell, Francis W. (Francis Whittier), 1886-1952: Studies in the Agalinanae, a subtribe of the Rhinanthaceae ([New York], 1913) (page images at HathiTrust)
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