Literature Based Distribution
Region
Country
Mapping will be based on a standard reference mark based on political units when available.
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| United States | | | Voss, E. G. | 1972 | Gymnosperms and Monocots | Michigan Fl. | i–xv, 1–488 |
| United States | | | Fernald, M. | 1950 | (none) | Manual (ed. 8) | i–lxiv, 1–1632 |
| United States | Kentucky | | Fernald, M. | 1950 | (none) | Manual (ed. 8) | i–lxiv, 1–1632 |
| United States | Michigan | | Voss, E. G. | 1972 | Gymnosperms and Monocots | Michigan Fl. | i–xv, 1–488 |
| United States | New Jersey | | Fernald, M. | 1950 | (none) | Manual (ed. 8) | i–lxiv, 1–1632 |
| United States | Pennsylvania | | Fernald, M. | 1950 | (none) | Manual (ed. 8) | i–lxiv, 1–1632 |
| United States | Virginia | | Fernald, M. | 1950 | (none) | Manual (ed. 8) | i–lxiv, 1–1632 |
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