John A. Christy, Wetland Ecologist, Oregon Natural Heritage Program, Herbarium Research Associate, Oregon State University
W.B. Schofield, Professeur émérite, département de botanique, University of British Columbia, Vancouver
James R. Shevock, Associate Regional Director, Resources, Partnerships and Science, National Park Service, Pacific West, 1111 Jackson St., Suite 700, Oakland, CA 94607-4807
