The mission of the BSA is to promote botany, the field of basic science dealing with the study and inquiry into the form, function, development, diversity, reproduction, evolution, and uses of plants and their interactions within the biosphere. The BSA encompasses all areas of plant biology, including development, physiology, reproductive biology, evolution, phycology, genetics, mycology, ecology, systematics, molecular biology, and paleobotany.

http://www.botany.org/