rounded at the tips. Variety lanceolata possesses 

 white petals that are frequently tinged and/or 

 lined with pink, and that are often notched at the 

 tips. 



GEOGRAPHICAL DISTRIBUTION 



1. RANGE: Claytonia lanceolata var. f lava is a 

 regional endemic, known from east-central Idaho 

 (Fremont County) , northwestern Wyoming (Fremont 

 County) , and southwestern Montana (Beaverhead, 

 Deerlodge, Gallatin, Jefferson, and Silver Bow 

 counties) . It is known to occur on the 

 Beaverhead, Deerlodge, and Gallatin National 

 Forests in Montana (U.S. Forest Service, Region 



1) , and on the Shoshone National Forest in Wyoming 

 (U.S. Forest Service, Region 2). The distribution 

 of C. lanceolata var. f lava in Montana is shown in 

 Figure 1, p. 5. The exact locations are shown on 

 the maps provided in Section IV, pp. 27-31. 



2. CURRENT SITES (MONTANA): Clavtonia lanceolata 

 var. flava is recently documented (1988) from five 

 sites. All of these sites occur wholly or 

 partially on U.S. Forest Service lands. The 

 locations of these sites, including the legal 

 descriptions, latitude and longitude, elevations, 

 and USGS topographic quadrangle names, are 

 provided in Table 1, p. 6. Field surveys were 

 conducted by the author and Peter Lesica (Division 

 of Biological Sciences, University of Montana) on 



8 May, 17-18 May, 25-27 May, 4 June, and 10 June, 

 1988. Field surveys were also conducted by Lisa 

 Schassberger (Montana Natural Heritage Program) on 

 5-9 June, 1988. Assistance with field surveys was 

 provided by Ken Scow (WESTECH, Helena) and Jan 

 Nixon (Bozeman) . 



Throughout this report, the three-digit occurrence 

 numbers are indicated in parentheses after the 

 site names; these correspond to the occurrence 

 numbers provided in the tables and computer print- 

 outs. 



3. HISTORICAL SITES: It is believed that the surveys 

 at the Lockhart Meadows (001) and French Creek 

 (002) sites represent the rediscovery of two 

 historical collections, in 1966 ("Champion Pass") 

 and 1911 ("Anaconda"), respectively. The original 

 collection from the Champion Pass area was made by 

 F. Trask (377., MONT); the location on this 

 specimen was given as "(n)ear Champion Pass on 

 Boulder Road, 11 mi. SE. of Deer Lodge." This 

 vicinity was surveyed in detail, but no highly 



