Fig. 1

Natural distribution of Taxodium in the U.S.A. (Wilhite & Toliver, 1990) and sampling sites. P and B indicate pond cypress and bald cypress populations, respectively. The dashed line indicates the range of pond cypress. The following abbreviations were used for each population: Fargo, FAR; Tocoi, TCI; pond cypress populations in Tosohatchee, TP1 and TP2; bald cypress in Tosohatchee, TB1 and TB2; Loxahatchee, LXH; pond cypress populations in Starkey, SD1 and SD2; Tates Hell, THL; pond cypress in St. Mark, SMP, bald cypress in St. Mark, SMB; and Highland Hammock, HHM.