Author Affiliations +
Weston L. Testo,1 Lynden B. Gerdes2
1Pringle Herbarium, Department of Plant Biology, University of VT, 27 Colchester Avenue, Burlington, Vermont, 05405 email: wtesto@uvm.edu
2Minnesota Department of Natural Resources, Minnesota Biological Survey, 10566 Highway 1, Isabella, Minnesota, 55607)