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Notes and References
This item contains 6 references.
3Engelmann, Papers on American Oaks. Botanical Works, 405.
4The American Entomologist and Botanist, 2: 316. 1870.
5Botanical Works, 406.
6Botanical Works, 403.
7This reference contains 2 citations:
- Wimmer, Salices Europaeae, Introduction, p. xlviii. Ib.
- Wildwachsende Bas- tardpflanzen, 144.
8Lehrbuch (4th ed.) 891. Text Book, 917.