More than 111,000 botanical specimens are housed in the herbarium. This is one of three primary collections of Illinois flora in the state. It includes the internationally significant Cutler-Blake ethnobotanical collection of prehistoric cultivated plants that represent much of the primary evidence for early American Indian plant domestication in North America.
Botany Collections Online
This Web exhibit presents more than 350 herbarium specimens of trees and prairie plants found in Illinois. The accompanying databases contain entries for the 250 prairie plant herbarium sheets and the 50 tree herbarium sheets pictured in the Gallery.