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.
此資源出現紀錄的資料已發佈為達爾文核心集檔案（DwC-A），其以一或多組資料表構成分享生物多樣性資料的標準格式。 核心資料表包含 9,738 筆紀錄。
亦存在 1 筆延伸集的資料表。延伸集中的紀錄補充核心集中紀錄的額外資訊。 每個延伸集資料表中資料筆數顯示如下。
下載最新版本的 Darwin Core Archive (DwC-A) 資源，或資源詮釋資料的 EML 或 RTF 文字檔。
Chicago Academy of Sciences Botany Collection (CHAS)
此資料的發布者及權利單位為 Chicago Academy of Sciences。 To the extent possible under law, the publisher has waived all rights to these data and has dedicated them to the Public Domain (CC0 1.0). Users may copy, modify, distribute and use the work, including for commercial purposes, without restriction.
Occurrence; Specimen; Occurrence
Primarily United States, especially the Midwest and Southeast.
|界定座標範圍||緯度南界 經度西界 [-90, -180], 緯度北界 經度東界 [90, 180]|
http://vertnet.org/resources/norms.html Rooted in Chicago, Illinois, the Chicago Academy of Sciences was founded in 1857 and was the first science museum in Chicago. Through its Peggy Notebaert Nature Museum, the Academy connects its community to local environments and inspires life-long relationships with urban nature. The museum collections and archives contain natural history collections in the disciplines of botany, entomology, geology, herpetology, ichthyology, malacology, mammalogy, oology, ornithology, and paleontology, as well as cultural collections, audio visual collections, and archives. These materials range from the 1830s to the present and are predominantly from North America with a focus in the Midwest/Western Great Lakes region.