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References

For Ulmus

Kurz, H., and R.K. Godfrey. 1962. Trees of northern Florida. University Press of Florida, Gainesville, FL. 311 pp.

Sherman-Broyles, S.L. 1997. Ulmus. In Flora of North America Editorial Committee. 1997. Flora of North America north of Mexico. Volume 3, Magnoliophyta: Magnoliidae and Hamamelidae. Oxford Univ. Press, New York, NY. 590 pp.

Todzia. 1993. In Kubitzki, K., J.G. Rohwer, and V. Bittrich, eds. 1993. The families and genera of vascular plants. II. Flowering plants – Dicotyledons – Magnoliid, Hamamelid and Caryophyllid families. Springer, Berlin. 653 pp.

Whittemore, A.T., and R.T. Olsen. 2011. Ulmus americana (Ulmaceae) is a polyploidy complex. Amer. J. Bot. 98: 754-760.

Whittemore, A.T., R.S. Fuller, B.H. Brown, M. Hahn, L. Gog, J.A. Weber, and A.L. Hipp. 2021. Phylogeny, Biogeography, and classification of the elms (Ulmus). Syst. Bot. 46: 711-727.

Wiegrefe, S.J., K.J. Sytsma, and R.P. Guries. 1994. Phylogeny of elms (Ulmus, Ulmaceae): molecular evidence for a sectional classification. Syst. Bot. 19: 590-612.

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