Supplemental Data

Files in this Data Supplement:

• Appendix - Gleditsia and Gymnocladus accessions used to obtain ITS sequences. All sources are wild populations, unless otherwise noted. All voucher specimens are deposited in ISC, unless otherwise noted. Numbers in parentheses following species names correspond to numbered accessions in Figs. 1-3. Information on native ranges is from Gordon (1966), Lee (1976), Larsen et al. (1980), Paclt (1984), and Li (1988).