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Names
- Rea, Paul Marshall, 1878-1
- Sterling, Edward Boker.1
- Tuckerman, Edward, 1817-1886.1
- United States. Bureau of Plant Industry.1
- United States. Office of Rubber Investigations.[remove]2
- University of Michigan -- Faculty.2
- University of Michigan. Department of Botany.1
- University of Michigan. Dept. of Botany.1
- University of Michigan. Matthaei Botanical Gardens.2
- University of Michigan. University Herbarium.1