New Information 



21. Record of revisions: 19 December 1988; Lisa Ann 

 Schassberger; Topics: I.I.D.; I.2.B.l.b.; 

 I.2.C.l.b.; I.3.E.; I. 5. A.; I.5.B.I.; I.6.A.; 

 I.6.B.l.b.; I.6.B.4.; I.6.B.5.; I.6.C.I.; I.6.C.6.; 

 I. 7. A.; I.7.B.I.; I.7.B.2.; I.7.C.I.: a., b., c, d., 

 e., f., g., h., i., j., k., 1.; I.7.D.4.; I.7.D.6.; 

 1 . 8 . C . 2 . b . ; 1 . 9 . A . ; 1 . 9 . B . ; I . 9 . C . ; 1 . 9 . D . ; 

 I.ll.A.l.; 11.12.; II. 13. A.; II.13.B.1.; II. 15. A. 1, 

 II. 15. A. 2.; 11.16; III.17.C.1.; III. 17. D.; III. 18, 

 Note: Within the text, numbers in parentheses 

 following site names refer to the three-digit 

 occurrence numbers, see Table 1 (p. 4). 



I.l.D. History and knowledge of taxon: Since 1985, 



the sites in the foothills of the Sapphire 

 Range in Ravalli County, Montana were 

 resurveyed. Additional subpopulations were 

 added to the three previously known sites and 

 one new population was discovered. 

 Additionally, eight new populations were 

 located along the north and east flanks of 

 the Pioneer Mountains, in Beaverhead and 

 Silver Bow counties. 



I.2.B.l.b. Other current formal status recommendations: 



The status of Arabis fecunda will be changed 

 to "endangered throughout range" (global 

 rank = G2) by the Montana Natural Heritage 

 Program. 



I.2.C.l.b. Other current formal status recommendations: 



The status of Arabis fecunda will be changed 

 to "endangered" in Montana (state rank = S2) 

 by the Montana Natural Heritage Program. 



I-3.E. Photographs and line drawings: The color 



slides (p. 2) are duplicates of those taken at 

 the sites indicated. Additional slides of 

 Arabis fecunda and its habitat are housed at 

 the office of the Montana Natural Heritage 

 Program, Helena, Montana. 



I -5. A. Geographical range: With the addition of 



nine new sites, Arabis fecunda is now known 

 to occur at elevations from 4,600-8,000 ft. 

 A new site (1986) from the foothills of the 

 Sapphire Range occurs along Birch Creek in 

 Ravalli County, Montana. The sites 

 discovered in 1988 occur along the Big Hole 



