Roe, Lisa, S. (473) 1991. Little Belt Mtns., Onion Park 



Annotated JAN 1992 by A. Cronquist as C. hookerianum Nutt. 



Roe, Lisa, S. (474) 1991. Little Belt Mtns., O'Brien Park 



Schassberqer, Lisa A. (401) 1990. Little Belt Mtns., O'Brien Park 



Field, D. (13) 1991. Little Belt Mtns., Lamb Creek 



Field D. (16) 1991. Castle Mtns., Pasture Gulch 



Phillips H.W. 9910808-3) 1991. Little Belt Mtns. 



It is of interest to note that in general, the specimens 



determined as C. hookerianum came from habitats that were 



moist to wet, whereas the rest of the specimens were 



collected from more mesic sites. The exception to this rule 



is the collection from Kings Hill (a mesic site) that was 

 determined as a potential hybrid. However, this site has 

 been extensively disturbed by road improvement activities. 



In light of the results of the morphological overview, it 

 would be appropriate to use techniques of electrophoresis to 

 support the hybridization hypotheses and delimit the range 

 of the species. 



The collections denoted "Belt Park" in the list above were 

 from the plot referred to as Neihart in the demographic 

 monitoring studies. 



DEMOGRAPHIC MONITORING TRANSECTS 



During 1990, three permanent monitoring transects were 

 established in what were thought to be populations of C. 

 lonqistylum on the Lewis and Clark National Forest. As stated 

 above in the taxonomic discussion. Dr. Cronquist (1992) annotated 

 the Neihart population as C. hookerianum , and it will be 

 referenced as such throughout the rest of the report. 



The purpose of these transects is to provide more detailed data 

 on the life history and population dynamics of C. lonqistylum . 

 Data on survivorship and reproduction are important for 

 understanding the biology of plants with limited distributions, 

 especially when attempting to ensure their long-term preservation 

 (Palmer 1987, Massey and Whitson 1980). 



METHODS: The locations and the geographic details and 

 methods used to establish the three plots are contained in a 

 report by Schassberger and Achuff (1991). As in 1990, 

 individuals were placed in size classes that appeared to 



