However, they have been found to be 

 frequent and locally abundant within a 

 limited geographic area in the 

 Bitterroot Mountains. 



7 . Population biology of the teocon 



A. General summary: The three known populations of 

 Lesguerella humilis occur in the Bitterroot 

 Mountains of western Montana and total about 2400 

 plants. The population on East St. Joseph Peak 

 (002) is the largest with about 900 plants. The 

 population on St. Mary Peak (001) contains about 

 800 plants and that on St. Joseph Peak (003) 

 contains about 700 plants. 



B. Demography 



1. Known populations: The three known 

 populations of Lescmerella humilis total 

 about 2400 plants. All three were visited in 

 1990 and population size estimates were made. 



2. General demographic details: 

 a. St. Mary Peak (001) 



1. Area occupied by population: ca. 3 5 

 acres. 



2. Estimated number of individuals: 

 ca. 800. 



3. Density: Sparsely scattered. 



4. Presence of dispersed seeds: 

 Unknown. 



5. Evidence of reproduction: 5% of 

 plants in flower and 85% fruiting 

 on 17 July 1990. 



6. Evidence of population expansion or 

 decline: Currently reported 

 population size and area are larger 

 than previously reported in 1987. 

 It is unlikely that the population 

 has expanded that much in three 

 years; the area and population size 

 reported in 1987 was probably 

 incomplete. 



b. East St. Joseph Peak (002) 



1. Area occupied by population: ca. 



15 acres. 



