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Chicago Academy of Sciences, Botany Collection (CHAS-Herb)

The CHAS Botany Collection focuses on vascular species of North America, particularly the Midwest/Great Lakes region, from 1834 to the present. There are also a small number of lichen and bryophyte specimens, as well as vascular species from South America and Europe. Over 15,000 specimens have been digitally inventoried and 2,000 have been imaged. The un-digitized backlog is estimated to be approximately 5,000 sheets. Notable collectors include: Henry H. Babcock, H. R. Bennett, A. Chase, W. P. Conant, George B. Grant, F. H. Hosford, H. F. Jaeger, Anna Pederson Kummer, C. G. Lloyd, W. S. Moffatt, E. L. Moseley, Walter L. Necker, E. Palmer, R. S. Schmidt, E. Stimpson, F. A. Swink, L. M. Umbach, H. Van Heurck, Dora Wilken, J. Wolfe, Elizabeth Emerson Atwater, W. W. Calkins, and Herman Silas Pepoon.


  • Collections Manager: Dawn Roberts, droberts@naturemuseum.org

Collection Statistics

  • 10,018 specimen records
  • 2,897 (29%) georeferenced
  • 2,110 (21%) with images (2,120 total images)
  • 7,771 (78%) identified to species
  • 316 families
  • 1,135 genera
  • 2,791 species
  • 3,058 total taxa (including subsp. and var.)

Extra Statistics

Collection Type: Preserved Specimens
Management: Data snapshot of local collection database
Last Update: 25 April 2022
Digital Metadata:EML File
IPT / DwC-A Source:CHAS IPT Import from GBIF
Access Rights: http://vertnet.org/resources/norms.html
Taxon Distribution
Taxon Distribution