1. Department of Biological Sciences; Union College; Schenectady NY 12308 U.S.A.
2. The Nature Conservancy; New York Chapter; 195 New Karner Road, Suite 2201 Albany NY 12205 U.S.A.
3. Adirondack Park Invasive Plant Program; PO Box 65 Keene Valley NY 12943 U.S.A.