1. Department of Cell Biology and Anatomy, Louisiana State University Health Sciences Center, New Orleans, Louisiana
2. Department of Organismal and Evolutionary Biology, Harvard University, Cambridge, Massachusetts
3. Section of Botany, Carnegie Museum of Natural History, Pittsburgh, Pennsylvania
4. Harvard University Herbaria, Harvard University, Cambridge, Massachusetts
5. Department of Biological Sciences, Idaho State University, Pocatello
6. Jackson School of Geosciences, University of Texas at Austin, Austin, Texas
7. Department of Biology, University of New Mexico, Albuquerque
8. Florida Museum of Natural History, University of Florida, Gainesville