American Association of Botanical Gardens and Arboreta Inc., 100 W. 10th St., Suite 614, Wilmington, DE 19801, (302) 655-7100, Fax (302) 655-8100, aabga@aabga.org, www.aabga.org. Carla Pastore, executive director.

The Arboretum of Los Angeles County, 301 N. Baldwin Ave., Arcadia, CA 91007, (626) 821-3222, Fax, (626) 445-1217, www.arboretum.org. Nadia Balaz, vocations and special events coordinator.

Atlanta Botanical Garden, 1345 Piedmont Ave., N.E., Atlanta, GA 30309, (404) 876-5859, Fax (404) 876-7472, info@atlantabotanicalgarden.org, www.atlantabotanicalgarden.org. Alston Glenn, executive director.