13 



IV. LITERATURE CITED 



Lesica, P., G. Moore, K.M. Peterson, and J.H. Rumely. 1984. 

 Vascular Plants of Limited Distribution in Montana. 

 Monograph No. 2, Montana Academy of Sciences, Supplement to 

 the Proceedings, Vol. 43. 61 pp. 



Lesica, P. 1987. A technique for monitoring nonrhizomatous, 

 perennial plant species in peirmanent belt transects. 

 Natural Areas Journal 7: 65-68. 



Lesica, P. 1988. Germination requirements and seedling biology 

 of Spalding's catchfly ( Silene spaldingii ) . Unpublished 

 report to The Nature Conservancy, Helena, Montana. 2 pp. 



Massey, J.R. , and P.D. Whitson. 1980. Species biology, the key 

 to plant preservation. Rhodora 82: 97-103. 



Reel, S., L. Schassberger , and W. Ruediger. 1989. Caring for 

 Our Natural Community: Region 1 - Threatened, Endangered 

 and Sensitive Species Program. U.S. Department of 

 Agriculture, Forest Service, Wildlife and Fisheries, 

 Missoula, Montana. 309 pp., appendices. 



Shelly, J.S. 1987. Status review of Penstemon lemhiensis . U.S. 

 Forest Service - Region 1, Beaverhead and Bitterroot 

 National Forests, Montana. Unpublished report to U.S. 

 Forest Service, Missoula, Montana. 72 pp. 



Shelly, J.S. 1989. Plant species of special concern. Montana 

 Natural Heritage Program, Helena, Montana. 22 pp. (mimeo) . 



U.S. Department of Interior. 1985. Endangered and threatened 

 wildlife and plants: Review of plant taxa for listing as 

 endangered or threatened species. Federal Register 50(188): 

 39526-39584. 



U.S. Department of Agriculture. 1988. Sensitive Plant Field 

 Guide, Region 1. U.S. Forest Service, Northern Region, 

 Range, Air, Watershed, and Ecology Section, Missoula, 

 Montana. 



