9) Agency Creek - F.S. - Lemhi Co., ID; 5,900'; T19N R25E Secl5; 

 USGS Quad Lemhi Pas; ca 10 individuals. 



10) Napo Bench - Lemhi Co., ID; 5,200'; T18N R24E Sec21 ; USGS Quad 

 Lemhi; less than 50 plants. 



11) Lemhi - Lemhi Co., ID; 5,200'; T13N R24E Sec23; USGS Quad 

 Lemhi; less than 50 plants. 



12) Hayden Basin - Lemhi Co., ID; 6,000'; T18N R23E Sec33; USGS 

 Quad Lemhi; less than 50 plants. 



13) Leadore - Lemhi Co., ID; ca 6,200'; T16N R25E Sec25-26, exact 

 location is unknown - herbarium label reads "4 mi west of 

 Leadore" NY, fide Rupert Barneby; USGS Quad Leadore. 



14) Shoup - Lemhi Co., ID; 3,400'; T24N R21W Sec22; USGS Quad 

 Ulysses Mtn.; less than 50 individuals. 



C. Status and location of presently cultivated material --No cultivated 

 material known. 



D. Biogeographical and phylogentic history-- Astrag!aus scaphoides is 

 related to the widespread and polymorphic A. eremeticus (3arneby 

 pers. com.) which occurs to the south of the range of A. 

 scaphoides . The presence of a depauperate population disjuct to 

 the north of the main range may indicate that the range of this 

 species is contracting. 



General environment and habitat description 



A. Concise statement of general enviroment and habitat--Silty soils 

 with moderate ot large amounts of coarse fragments derived from 

 limestone, basalt, or diabase. Sites are dominated by 

 sagebrush-bunch grass association and occur between 5,000 and 

 6,500' on lower slopes. Sites are often in an ecotonal area 



