Author
Darlington, William, 1782-1863
8
Barton, William P. C. 1786-1856
7
Rafinesque, C. S. 1783-1840
7
University of Pennsylvania. Botanical Laboratory
5
Barton, Benjamin Smith, 1766-1815
4
Muhlenberg, Henry, 1753-1815
4
Torrey, John, 1796-1873
4
Baird, Spencer Fullerton, 1823-1887
3
Botany Worsted Mills (Passaic, N.J.)
3
Clayton, John, 1686-1773
3
Ewan, Joseph, 1909-1999
3
Gronovius, Johannes Fredericus, 1686-1762
3
Haldeman, Samuel Stehman, 1812-1880
3
Hall, James, 1811-1898
3
McMurtrie, Henry, 1793-1865
3
Phelps, Lincoln, Mrs., 1793-1884
3
Philadelphia Botanical Club
3
University of Pennsylvania. Morris Arboretum
3
Bartram, William, 1739-1823
2
Beatty, T. B.
2
Benner, Walter M., 1888-
2
Borovsʹkyĭ, M.
2
Brereton, John A.
2
Brockett, L. P. 1820-1893
2
Castiglioni, Luigi, 1757-1832
2
Comte, Achille Joseph, 1802-1866
2
Deutscher Pionier-Verein (Philadelphia, Pa.)
2
Elliot, William
2
Ewan, Nesta
2
Girard, Charles, 1822-1895
2
Horrmann, Friedrich, 1832-1904
2
Joseph Meredith Toner Collection (Library of Congress)
2
Lafayette College (Easton, Pa.)
2
Maisch, John M. 1831-1893
2
Marshall, Humphry, 1722-1801
2
Mead, Elijah
2
Milne-Edwards, H. 1800-1885
2
Mitchell, John S.
2
Nuttall, Thomas, 1786-1859
2
Porter, Thomas Conrad, 1822-1901
2
Ruschenberger, W. S. W. 1807-1895
2
Spalding, Volney M.
2
Stansbury, Howard, 1806-1863
2
United States. Army. Corps of Topographical Engineers
2
Wulf, Andrea,
2
Albertson, Alice Owen
1
Allbright, J.
1
Almira Hart Lincoln Phelps, 1793-1884
1
American Imprint Collection (Library of Congress)
1
Amon, Jim
1
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