LITERATURE CITED 



Dorn, R. D. 1984. Vascular plants of Montana. Mountain West 

 Publishing, Cheyenne, WY . 276 pp. 



Geach, R. D. 1972. Mines and mineral deposits (except 



fuels), Beaverhead County, Montana. State of Montana 

 Bureau of Mines and Geology Bulletin 85. 



Heidel, B. L. and J. M. Poole. 1993. Montana plant species 

 of special concern. Unpublished list. Montana Natural 

 Heritage Program, Helena, MT. 



Hitchcock, C. L. and A. Cronquist. 1973. Flora of the 

 Pacific Northwest. University of Washington Press, 

 Seattle, WA. 730 pp. 



Shelly, J. S. 1990. Report on the conservation status of 

 Penstemon lemhiensis , a candidate threatened species: 

 Montana. Montana Natural Heritage Program, Helena, MT. 



Staatz, M. H. 1979. Geology and mineral resources of the 

 Lemhi Pass thorium district, Idaho and Montana. U. S. 

 Geological Survey Professional Paper 1049-A. 



USDI Bureau of Land Management. 1993. Draft list of 



sensitive and watch plant species in Montana. Billings, 

 MT. Unpubl. 



U. S. D. I. Fish and Wildlife Service. 1993. Plant taxa for 

 listing as endangered or threatened species; Notice of 

 Review. Federal Register 58: 51144-51190. 



Vanderhorst, J. and P. Lesica. 1994. Sensitive plant species 

 survey in the Tendoy Mountains, Beaverhead County, 

 Montana. Unpublished report to the Butte District, 

 Bureau of Land Management. Montana Natural Heritage 

 Program, Helena. In progress. 



