University of Michigan Herbarium (MICH): The Herbarium is a world-class collection, containing over a million vascular plant specimens, as well as hundreds of thousands of bryophytes and fungi; the collection contains a large number of type specimens. Although the collection is global is scope, flora of the Great Lakes region is particularly well-represented.

University of Michigan Museum of Zoology (UMMZ): The Museum of Zoology is divided into six main divisions: Birds, Fish, Insects, Mammals, Mollusks, and Reptiles & Amphibians. Altogether, the Museum contains around 15 million specimens, with a massive amount of phylogenetic diversity.

University of Michigan Museum of Paleontology (UMMP): The Museum of Paleontology contains over 2 million specimens, including thousands of types, divided into Vertebrate, Invertebrate, Paleobotany, and Micropaleontology collections.

University of Michigan Museum of Anthropological Anthropology (UMMAA): The Museum of Anthropological Archaeology has rich worldwide collections, divided among archaeology, ethnography, and photography/documentary holdings. This is one of the more accessible research museums, with exhibits both online and in several of the University’s display museums.

Bentley Historical Library: The Bentley serves as the official archives for the University of Michigan, and also serves to store and document information about the history of the state of Michigan; old journals, catalogs, and other documents found at the Bentley have been invaluable to this project.

Special Collections Library: A non-circulating division of the University Libraries, Special Collections holds many rare and historically-significant volumes, including the Asa Gray volumes– books purchased in Europe by Asa Gray in 1838 to form the library of the new University of Michigan.

National Arboretum: The Herbarium of the National Arboretum contains many specimens from Zina Pitcher and Douglass Houghton, botanists instrumental in the early years of both the state and the University of Michigan. They have generously allowed us to borrow these specimens for imaging and inclusion in this project.