During landing on runway 23, the airplane floated more than expected, and then bounced to a height of 2 feet above the runway. As the airplane bounced, it encountered a gust of wind from the west and the pilot attempted unsuccessfully to control the airplane with braking and rudder inputs. The airplane subsequently ground looped and departed the right side of the runway, impacting a tree with the left wing. Examination of the airplane revealed substantial damage to the engine firewall. No preimpact mechanical malfunctions were reported by the pilot or identified during the examination. The recorded wind about the time of the accident, at an airport 11 miles to the southeast, was from 310 degrees at 9 knots.