We measured diurnal changes in water levels in three swamps dominated by pondcypress trees (Taxodium distichum var. nutans) in central Florida for four years in order to obtain additional documentation of relatively low evapotranspiration (ET) rates. Two of these swamps were monitored for another three years afer one of them was clearcut. Estimated annual ET from undisturbed cypress swamps varied from 38 cm/yr to 86/cm/yr, averaging 60 cm (not including interception). Faster ET rates may have been related to faster pondcypress growth rates, a greater proportion of hardwoods in the canopy, and clearcutting in the surrrounding pine plantation. The average ET rate was considerably lower than ET rates that have been estimated for north Flroida pine plantations. However, incorporating estimates of interception indicates that overall ET rates in pondcypress swamps may be only slightly lower than ET from pine plantations. ET decreased only 5 percent in one swamp after it was clearcut, indicating that this management practice is not likely to affect regional water balances.