Appendix 1.

Detailed acknowledgments of collaborators, student participants, and funding sources.

Collaborator/Student	Role in project
Christopher Burkhart, Crystal Davis, Elizabeth Etzkorn, Eddie Hampton, Ashley Hart, Rebecca Kennedy, Devin Loerch, Starlene Loerch, Angelique Morris, Hunter Nunnally, Emily Panhorst, Mary Rath, Alexander Worm	Arkansas State University students and two student volunteers who contributed by updating nomenclature through specimen annotation, imaging specimens, and databasing label data
Drew Prescott	Undergraduate student from University of Arkansas at Monticello who provided advice on imaging set up
Alyson Gill, Curtis Steele	Faculty members from Arkansas State University Art Department who assisted with camera settings upon imaging station set up
Mary Barkworth, Karen Fawley, Marvin Fawley, John Harris, Tracy Klotz, John Pratte, Thomas Risch, Stan Trauth, iDigBio team, Marsico laboratory students	Individuals who supported and promoted our digitization effort from initiation to publication
Joe Burleson	Arkansas State University College of Sciences and Mathematics Project/Program Specialist who led the effort to create the virtual herbarium
Theresa Miller and Andrew Bentley	Specify software personnel who provided database training and technical support