ACKNOWLEDGEMENTS 



We thank Clint McCarthy, Custer National Forest, and David Ode, 

 South Dakota Natural Heritage Program, for their help throughout 

 the study. Additional support was provided by Jim Farrell, Sioux 

 Ranger District of Custer National Forest. The cooperation of the 

 South Dakota Natural Heritage Program is gratefully acknowledged. 

 Close-up photographs of Haplopappus armerioides and Penstemon 

 nitidus in flower were taken by David Ode. We are also indebted to 

 herbarium personnel for information and use of herbarium resources, 

 including John Rumely, David Dyer, Ronald Hartman, and Gary Larson. 

 We thank Carrie, Bruce and Ben Jacobson for hand delivery of the 

 South Dakota field maps. Finally, GIS map production by Cedron 

 Jones, data management by Margaret Beer, Kathy Jurist, and Debbie 

 Dover, and editing by Kathy Jurist are gratefully acknowledged. 

 Financial support for the project came from the Custer National 

 Forest and the Montana Natural Heritage Program. 



