Author Affiliations +
Susan Will-Wolf,1,2 Bruce McCune,3 Per-Anders Esseen4
1University of Wisconsin-Madison, Department of Botany, 430 Lincoln Dr., Madison, WI 53706, USA
2Corresponding author; Fax 1 6082627509; swwolf@wisc.edu
3Department of Botany and Plant Pathology, Cordley 2082, Oregon State University, Corvallis, OR 97331, USA; bruce.mccune@science.oregonstate.edu
4Department of Ecology and Environmental Science, Umeå university, SE 901 87 Umeå, Sweden; per-anders.esseen@emg.umu.se