17 



2. Estimated number of individuals: 

 ca. 900 plants in 3 subpopulations. 



3. Density: Unknown. 



4. Presence of dispersed seeds: 

 Unknown. 



5. Evidence of reproduction: Most 

 plants flowering and fruiting on 28 

 August 1990. 



6. Evidence of population expansion or 

 decline: Additional subpopulations 

 located in 1990 raised the total 

 number from 200-400 to 900 plants. 



St. Joseph Peak (003) 



1. Area occupied by population: ca. 

 20 acres. 



2. Estimated number of individuals: 

 ca. 700. 



3. Density: Sparsely scattered. 



4. Presence of dispersed seeds: 

 Unknown. 



5. Evidence of reproduction: 5% of 

 plants with mature fruit and 60% 

 dispersing seed on 29 August 1990. 



6. Evidence of population expansion or 

 decline: The 1971 estimate was ca. 

 1000 plants but it is unclear that 

 the population has declined. 



C. Phenology 



1. Patterns: Lescfuerella humilis is in bloom 

 from late June to mid-July, with some 

 variation depending on climatic conditions 

 and exposure. Fruiting extends from early 

 July through the end of August. 



2. Relation to climate and microclimate: 

 Details are unknown. 



D. Reproductive biology 



1. Types of reproduction: The flowers of L. 

 humilis are chasmogamous (with conspicuous 

 corollas, normally open for fertilization) . 

 Cross-pollination and self-incompatibility 

 are the norm for the genus (Rollins and Shaw 

 1973) , although self-compatibility is also 

 present in at least some species. In an 

 alpine species such as L. humilis . self- 

 pollination may be more prevalent, owing to 



