ACKNOWLEDGMENTS 



Numerous botanists have assisted us in the completion of this work. 

 Review and technical input from the following individuals is gratefully 

 acknowledged: Kathy Ahlenslager, Wally Albert, Anne Bradley, Steve Chadde, 

 Joe Elliott, Angela Evenden, Dana Field, Andy Kratz, Klaus Lackschewitz, Matt 

 Lavin, Maria Mantas, John Pierce, John Rumely, Lisa Schassberger , Ken Scow, 

 Doug Soltis, Peter Stickney, Virginia Vincent, Carl Wambolt and Paul Wolf. 

 Robert Corn was particularly helpful and graciously answered many questions 

 regarding taxonomic literature and the location of specimens. 



We are grateful to the following systematists for determining Montana 

 material: Loran Anderson, Randall Bayer, Rupert Barneby, John Beaman, Kenton 

 Chambers, Lincoln Constance, Arthur Cronquist, Garrett Crow, Alva Day, Robert 

 Dorn, John Gillett, Ronald Hartman, Douglass Henderson, James Hickman, David 

 Lellinger, Ronald McGregor, Robert Moseley, Gerald Ownbey, James Reveal, Anton 

 Reznicek, Reed Rollins, Alfred Schuyler, Lisa Standley, W. H. Wagner and 

 William Weber. 



Financial support was provided by the U.S. Forest Service (Region 1), 

 the U.S. Bureau of Land Management (Montana State Office), and the Montana 

 Natural Heritage Program (Montana State Library) . We thank Angela Evenden and 

 Bill Ruediger (USFS), Donald Heinze (BLM) and David Center (MNHP) for their 

 interest in this project. 



Assistance with preparation of the manuscript was provided by Margaret 

 Beer (Montana Natural Heritage Program) . 



Lastly, we would like to thank the curators of the herbaria in Montana 

 for access to their collections; these invaluable resources form the most 

 critical basis for this work. 



